Moodle release 3.3.8

Automatically generated installer lang files
weekly release 3.3.7+
2018-09-08 16:49:39 +02:00 · 2018-09-08 00:07:55 +00:00 · 2018-09-07 11:11:40 +08:00 · 2018-09-07 11:11:11 +08:00 · 2018-09-06 09:25:10 +08:00 · 2018-09-06 08:54:23 +08:00
259 changed files with 29653 additions and 435 deletions
@@ -3,6 +3,7 @@
 */**/build/
 node_modules/
 vendor/
+admin/tool/policy/amd/src/jquery-eu-cookie-law-popup.js
 admin/tool/usertours/amd/src/tour.js
 admin/tool/usertours/amd/src/popper.js
 auth/cas/CAS/
@@ -4,6 +4,7 @@ theme/clean/style/custom.css
 theme/more/style/custom.css
 node_modules/
 vendor/
+admin/tool/policy/amd/src/jquery-eu-cookie-law-popup.js
 admin/tool/usertours/amd/src/tour.js
 admin/tool/usertours/amd/src/popper.js
 auth/cas/CAS/
@@ -2435,4 +2435,185 @@
      </CUSTOM_CHECK>
    </CUSTOM_CHECKS>
  </MOODLE>
+  <MOODLE version="3.6" requires="3.1">
+    <UNICODE level="required">
+      <FEEDBACK>
+        <ON_ERROR message="unicoderequired" />
+      </FEEDBACK>
+    </UNICODE>
+    <DATABASE level="required">
+      <VENDOR name="mariadb" version="5.5.31" />
+      <VENDOR name="mysql" version="5.6" />
+      <VENDOR name="postgres" version="9.4" />
+      <VENDOR name="mssql" version="10.0" />
+      <VENDOR name="oracle" version="11.2" />
+    </DATABASE>
+    <PHP version="7.0.0" level="required">
+    </PHP>
+    <PCREUNICODE level="optional">
+      <FEEDBACK>
+        <ON_CHECK message="pcreunicodewarning" />
+      </FEEDBACK>
+    </PCREUNICODE>
+    <PHP_EXTENSIONS>
+      <PHP_EXTENSION name="iconv" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="iconvrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="mbstring" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="mbstringrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="curl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="curlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="openssl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="opensslrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="tokenizer" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="tokenizerrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlrpc" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="xmlrpcrecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="soap" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="soaprecommended" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="ctype" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ctyperequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zip" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="ziprequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="zlib" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="gd" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="gdrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="simplexml" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="simplexmlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="spl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="splrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="pcre" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="dom" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xml" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="xmlreader" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="intl" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="intlrequired" />
+        </FEEDBACK>
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="json" level="required">
+      </PHP_EXTENSION>
+      <PHP_EXTENSION name="hash" level="required"/>
+      <PHP_EXTENSION name="fileinfo" level="required"/>
+    </PHP_EXTENSIONS>
+    <PHP_SETTINGS>
+      <PHP_SETTING name="memory_limit" value="96M" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="settingmemorylimit" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="file_uploads" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="settingfileuploads" />
+        </FEEDBACK>
+      </PHP_SETTING>
+      <PHP_SETTING name="opcache.enable" value="1" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="opcacherecommended" />
+        </FEEDBACK>
+      </PHP_SETTING>
+    </PHP_SETTINGS>
+    <CUSTOM_CHECKS>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_storage_engine" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbstorageengine" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="question/engine/upgrade/upgradelib.php" function="quiz_attempts_upgraded" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="quizattemptsupgradedmessage" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_slasharguments" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="slashargumentswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_database_tables_row_format" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unsupporteddbtablerowformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_unoconv_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="unoconvwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_libcurl_version" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="libcurlwarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_format" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfileformat" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_file_per_table" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddbfilepertable" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_large_prefix" level="required">
+        <FEEDBACK>
+          <ON_ERROR message="unsupporteddblargeprefix" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_is_https" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="ishttpswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_mysql_incomplete_unicode_support" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="incompleteunicodesupport" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+      <CUSTOM_CHECK file="lib/upgradelib.php" function="check_sixtyfour_bits" level="optional">
+        <FEEDBACK>
+          <ON_CHECK message="sixtyfourbitswarning" />
+        </FEEDBACK>
+      </CUSTOM_CHECK>
+    </CUSTOM_CHECKS>
+  </MOODLE>
 </COMPATIBILITY_MATRIX>
@@ -0,0 +1 @@
+define(["jquery","core/str","core/ajax","core/notification","core/modal_factory","core/modal_events","core/fragment"],function(a,b,c,d,e,f,g){var h={CATEGORY_LINK:'[data-add-element="category"]'},i=function(a){this.contextId=a;var c=[{key:"addcategory",component:"tool_dataprivacy"},{key:"save",component:"admin"}];this.strings=b.get_strings(c),this.registerEventListeners()};return i.prototype.contextId=0,i.prototype.strings=0,i.prototype.registerEventListeners=function(){var b=a(h.CATEGORY_LINK);b.on("click",function(){return this.strings.then(function(a){e.create({type:e.types.SAVE_CANCEL,title:a[0],body:""},b).done(function(b){this.setupFormModal(b,a[1])}.bind(this))}.bind(this)).fail(d.exception)}.bind(this))},i.prototype.getBody=function(a){var b=null;return"undefined"!=typeof a&&(b={jsonformdata:JSON.stringify(a)}),g.loadFragment("tool_dataprivacy","addcategory_form",this.contextId,b)},i.prototype.setupFormModal=function(a,b){a.setLarge(),a.setSaveButtonText(b),a.getRoot().on(f.hidden,this.destroy.bind(this)),a.setBody(this.getBody()),a.getRoot().on(f.save,this.submitForm.bind(this)),a.getRoot().on("submit","form",this.submitFormAjax.bind(this)),this.modal=a,a.show()},i.prototype.submitForm=function(a){a.preventDefault(),this.modal.getRoot().find("form").submit()},i.prototype.submitFormAjax=function(a){a.preventDefault();var b=this.modal.getRoot().find("form").serialize();c.call([{methodname:"tool_dataprivacy_create_category_form",args:{jsonformdata:JSON.stringify(b)},done:function(a){a.validationerrors?this.modal.setBody(this.getBody(b)):this.close()}.bind(this),fail:d.exception}])},i.prototype.close=function(){this.destroy(),document.location.reload()},i.prototype.destroy=function(){Y.use("moodle-core-formchangechecker",function(){M.core_formchangechecker.reset_form_dirty_state()}),this.modal.destroy()},i.prototype.removeListeners=function(){a(h.CATEGORY_LINK).off("click")},{getInstance:function(a){return new i(a)}}});
@@ -0,0 +1 @@
+define(["jquery","core/str","core/ajax","core/notification","core/modal_factory","core/modal_events","core/fragment"],function(a,b,c,d,e,f,g){var h={PURPOSE_LINK:'[data-add-element="purpose"]'},i=function(a){this.contextId=a;var c=[{key:"addpurpose",component:"tool_dataprivacy"},{key:"save",component:"admin"}];this.strings=b.get_strings(c),this.registerEventListeners()};return i.prototype.contextId=0,i.prototype.strings=0,i.prototype.registerEventListeners=function(){var b=a(h.PURPOSE_LINK);b.on("click",function(){return this.strings.then(function(a){e.create({type:e.types.SAVE_CANCEL,title:a[0],body:""},b).done(function(b){this.setupFormModal(b,a[1])}.bind(this))}.bind(this)).fail(d.exception)}.bind(this))},i.prototype.getBody=function(a){var b=null;return"undefined"!=typeof a&&(b={jsonformdata:JSON.stringify(a)}),g.loadFragment("tool_dataprivacy","addpurpose_form",this.contextId,b)},i.prototype.setupFormModal=function(a,b){a.setLarge(),a.setSaveButtonText(b),a.getRoot().on(f.hidden,this.destroy.bind(this)),a.setBody(this.getBody()),a.getRoot().on(f.save,this.submitForm.bind(this)),a.getRoot().on("submit","form",this.submitFormAjax.bind(this)),this.modal=a,a.show()},i.prototype.submitForm=function(a){a.preventDefault(),this.modal.getRoot().find("form").submit()},i.prototype.submitFormAjax=function(a){a.preventDefault();var b=this.modal.getRoot().find("form").serialize();c.call([{methodname:"tool_dataprivacy_create_purpose_form",args:{jsonformdata:JSON.stringify(b)},done:function(a){a.validationerrors?this.modal.setBody(this.getBody(b)):this.close()}.bind(this),fail:d.exception}])},i.prototype.close=function(){this.destroy(),document.location.reload()},i.prototype.destroy=function(){Y.use("moodle-core-formchangechecker",function(){M.core_formchangechecker.reset_form_dirty_state()}),this.modal.destroy()},i.prototype.removeListeners=function(){a(h.PURPOSE_LINK).off("click")},{getInstance:function(a){return new i(a)}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events"],function(a,b,c,d,e,f){var g={DELETE:'[data-action="deletecategory"]'},h=function(){this.registerEvents()};return h.prototype.registerEvents=function(){a(g.DELETE).click(function(g){g.preventDefault();var h=a(this).data("id"),i=a(this).data("name"),j=[{key:"deletecategory",component:"tool_dataprivacy"},{key:"deletecategorytext",component:"tool_dataprivacy",param:i},{key:"delete"}];d.get_strings(j).then(function(d){var g=d[0],i=d[1],j=d[2];return e.create({title:g,body:i,type:e.types.SAVE_CANCEL}).then(function(d){return d.setSaveButtonText(j),d.getRoot().on(f.save,function(){var d={methodname:"tool_dataprivacy_delete_category",args:{id:h}};b.call([d])[0].done(function(b){b.result?a('tr[data-categoryid="'+h+'"]').remove():c.addNotification({message:b.warnings[0].message,type:"error"})}).fail(c.exception)}),d.getRoot().on(f.hidden,function(){d.destroy()}),d})}).done(function(a){a.show()}).fail(c.exception)})},{init:function(){return new h}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events"],function(a,b,c,d,e,f){function g(a){var g=[{key:"confirm",component:"moodle"},{key:"confirmcontextdeletion",component:"tool_dataprivacy"}],h="tool_dataprivacy_confirm_contexts_for_deletion",i="";d.get_strings(g).then(function(a){i=a[0];var b=a[1];return e.create({title:i,body:b,type:e.types.SAVE_CANCEL})}).then(function(d){return d.setSaveButtonText(i),d.getRoot().on(f.save,function(){var d={ids:a},e={methodname:h,args:d};b.call([e])[0].done(function(a){a.result?window.location.reload():c.addNotification({message:a.warnings[0].message,type:"error"})}).fail(c.exception)}),d.getRoot().on(f.hidden,function(){d.destroy()}),d}).done(function(a){a.show()}).fail(c.exception)}var h={MARK_FOR_DELETION:'[data-action="markfordeletion"]',SELECT_ALL:'[data-action="selectall"]'},i={SELECTCONTEXT:".selectcontext"},j=function(){this.registerEvents()};return j.prototype.registerEvents=function(){a(h.MARK_FOR_DELETION).click(function(b){b.preventDefault();var c=[];a(i.SELECTCONTEXT).each(function(){var b=a(this);b.is(":checked")&&c.push(b.val())}),g(c)}),a(h.SELECT_ALL).change(function(b){b.preventDefault();var c=a(this);c.is(":checked")?a(i.SELECTCONTEXT).attr("checked","checked"):a(i.SELECTCONTEXT).removeAttr("checked")})},j});
@@ -0,0 +1 @@
+define(["jquery","core/str","core/ajax","core/notification","core/templates","core/modal_factory","core/modal_events","core/fragment","tool_dataprivacy/add_purpose","tool_dataprivacy/add_category"],function(a,b,c,d,e,f,g,h,i,j){var k={TREE_NODES:"[data-context-tree-node=1]",FORM_CONTAINER:"#context-form-container"},l=function(a,b,c){this.systemContextId=a,this.currentContextLevel=b,this.currentContextId=c,this.init()};return l.prototype.systemContextId=0,l.prototype.currentContextLevel=0,l.prototype.currentContextId=0,l.prototype.addpurpose=null,l.prototype.addcategory=null,l.prototype.init=function(){this.addpurpose=i.getInstance(this.systemContextId),this.addcategory=j.getInstance(this.systemContextId);var a=[{key:"changessaved",component:"moodle"},{key:"contextpurposecategorysaved",component:"tool_dataprivacy"},{key:"noblockstoload",component:"tool_dataprivacy"},{key:"noactivitiestoload",component:"tool_dataprivacy"},{key:"nocoursestoload",component:"tool_dataprivacy"}];this.strings=b.get_strings(a),this.registerEventListeners(),this.currentContextId?this.loadForm("context_form",[this.currentContextId],this.submitContextFormAjax.bind(this)):this.loadForm("contextlevel_form",[this.currentContextLevel],this.submitContextLevelFormAjax.bind(this))},l.prototype.registerEventListeners=function(){a(k.TREE_NODES).on("click",function(b){b.preventDefault();var c=a(b.currentTarget);a(k.TREE_NODES).removeClass("active"),c.addClass("active");var d=c.data("contextlevel"),e=c.data("contextid");if(d)window.history.pushState({},null,"?contextlevel="+d),this.addpurpose.removeListeners(),this.addcategory.removeListeners(),this.currentContextLevel=d,this.loadForm("contextlevel_form",[this.currentContextLevel],this.submitContextLevelFormAjax.bind(this));else if(e)window.history.pushState({},null,"?contextid="+e),this.addpurpose.removeListeners(),this.addcategory.removeListeners(),this.currentContextId=e,this.loadForm("context_form",[this.currentContextId],this.submitContextFormAjax.bind(this));else{var f=c.data("expandcontextid"),g=c.data("expandelement"),h=c.data("expanded");g&&(h?this.collapse(c):!c.data("loaded")&&f&&g?(c.find("> i").removeClass("fa-plus"),c.find("> i").addClass("fa-circle-o-notch fa-spin"),this.loadExtra(c,f,g)):this.expand(c))}}.bind(this))},l.prototype.removeListeners=function(){a(k.TREE_NODES).off("click")},l.prototype.loadForm=function(b,c,f){this.clearForm();var g=h.loadFragment("tool_dataprivacy",b,this.systemContextId,c);g.done(function(b,c){a(k.FORM_CONTAINER).html(b),e.runTemplateJS(c),this.addpurpose.registerEventListeners(),this.addcategory.registerEventListeners(),a(k.FORM_CONTAINER).on("submit","form",f)}.bind(this)).fail(d.exception)},l.prototype.clearForm=function(){Y.use("moodle-core-formchangechecker",function(){M.core_formchangechecker.reset_form_dirty_state()}),a(k.FORM_CONTAINER).off("submit","form")},l.prototype.submitForm=function(b){b.preventDefault(),a(k.FORM_CONTAINER).find("form").submit()},l.prototype.submitContextLevelFormAjax=function(a){this.submitFormAjax(a,"tool_dataprivacy_set_contextlevel_form")},l.prototype.submitContextFormAjax=function(a){this.submitFormAjax(a,"tool_dataprivacy_set_context_form")},l.prototype.submitFormAjax=function(b,e){b.preventDefault();var f=a(k.FORM_CONTAINER).find("form").serialize();return this.strings.then(function(a){c.call([{methodname:e,args:{jsonformdata:JSON.stringify(f)},done:function(){d.alert(a[0],a[1])},fail:d.exception}])})["catch"](d.exception)},l.prototype.loadExtra=function(a,b,f){c.call([{methodname:"tool_dataprivacy_tree_extra_branches",args:{contextid:b,element:f},done:function(b){return 0==b.branches.length?void this.noElements(a,f):void e.render("tool_dataprivacy/context_tree_branches",b).then(function(b){a.after(b),this.removeListeners(),this.registerEventListeners(),this.expand(a),a.data("loaded",1)}.bind(this)).fail(d.exception)}.bind(this),fail:d.exception}])},l.prototype.noElements=function(a,b){a.data("expandcontextid",""),a.data("expandelement",""),this.strings.then(function(c){var d=2;"module"==b?d=3:"course"==b&&(d=4),a.text(c[d])}).fail(d.exception)},l.prototype.collapse=function(a){a.data("expanded",0),a.siblings("nav").addClass("hidden"),a.find("> i").removeClass("fa-minus"),a.find("> i").addClass("fa-plus")},l.prototype.expand=function(a){a.data("expanded",1),a.siblings("nav").removeClass("hidden"),a.find("> i").removeClass("fa-plus"),a.find("> i").removeClass("fa-circle-o-notch fa-spin"),a.find("> i").addClass("fa-minus")},{init:function(a,b,c){return new l(a,b,c)}}});
@@ -0,0 +1 @@
+define(["jquery","core/notification","core/custom_interaction_events","core/modal","core/modal_registry","tool_dataprivacy/events"],function(a,b,c,d,e,f){var g=!1,h={APPROVE_BUTTON:'[data-action="approve"]',DENY_BUTTON:'[data-action="deny"]',COMPLETE_BUTTON:'[data-action="complete"]'},i=function(a){d.call(this,a)};return i.TYPE="tool_dataprivacy-data_request",i.TYPE_ENQUIRY="tool_dataprivacy-complete_request",i.prototype=Object.create(d.prototype),i.prototype.constructor=i,i.prototype.registerEventListeners=function(){d.prototype.registerEventListeners.call(this),this.getModal().on(c.events.activate,h.APPROVE_BUTTON,function(b,c){var d=a.Event(f.approve);this.getRoot().trigger(d,this),d.isDefaultPrevented()||(this.hide(),c.originalEvent.preventDefault())}.bind(this)),this.getModal().on(c.events.activate,h.DENY_BUTTON,function(b,c){var d=a.Event(f.deny);this.getRoot().trigger(d,this),d.isDefaultPrevented()||(this.hide(),c.originalEvent.preventDefault())}.bind(this)),this.getModal().on(c.events.activate,h.COMPLETE_BUTTON,function(b,c){var d=a.Event(f.complete);this.getRoot().trigger(d,this),d.isDefaultPrevented()||(this.hide(),c.originalEvent.preventDefault())}.bind(this))},g||(e.register(i.TYPE,i,"tool_dataprivacy/data_request_modal"),e.register(i.TYPE_ENQUIRY,i,"tool_dataprivacy/mark_request_complete_modal"),g=!0),i});
@@ -0,0 +1 @@
+define(["jquery"],function(a){var b={PURPOSE_SELECT:"#id_purposeid",RETENTION_FIELD_BOOST:"#id_error_retention_current",RETENTION_FIELD_CLEAN:"#fitem_id_retention_current [data-fieldtype=static]"},c=function(a){this.purposeRetentionPeriods=a,this.registerEventListeners()},d=function(){a(b.PURPOSE_SELECT).off("change")};return c.prototype.purposeRetentionPeriods=[],c.prototype.registerEventListeners=function(){a(b.PURPOSE_SELECT).on("change",function(c){var d=a(c.currentTarget).val(),e=this.purposeRetentionPeriods[d],f=a(b.RETENTION_FIELD_CLEAN);if(f.length>0)f.text(e);else{var g=a(b.RETENTION_FIELD_BOOST),h=g.siblings();h.length>0&&h.text(e)}}.bind(this))},{init:function(a){return d(),new c(a)}}});
@@ -0,0 +1 @@
+define([],function(){return{approve:"tool_dataprivacy-data_request:approve",deny:"tool_dataprivacy-data_request:deny",complete:"tool_dataprivacy-data_request:complete"}});
@@ -0,0 +1 @@
+define(["jquery","core/url","core/str"],function(a,b,c){var d=a('<img alt="" src="'+b.imageUrl("t/expanded")+'"/>'),e=a('<img alt="" src="'+b.imageUrl("t/collapsed")+'"/>');return{expandCollapse:function(a,b){a.hasClass("hide")?(a.removeClass("hide"),a.addClass("visible"),a.attr("aria-expanded",!0),b.find(":header i.fa").removeClass("fa-plus-square"),b.find(":header i.fa").addClass("fa-minus-square"),b.find(":header img.icon").attr("src",d.attr("src"))):(a.removeClass("visible"),a.addClass("hide"),a.attr("aria-expanded",!1),b.find(":header i.fa").removeClass("fa-minus-square"),b.find(":header i.fa").addClass("fa-plus-square"),b.find(":header img.icon").attr("src",e.attr("src")))},expandCollapseAll:function(b){var f="visible"==b?"hide":"visible",g="visible"==b,h="visible"==b?"fa-plus-square":"fa-minus-square",i="visible"==b?"fa-minus-square":"fa-plus-square",j="visible"==b?d.attr("src"):e.attr("src");a("."+f).each(function(){a(this).removeClass(f),a(this).addClass(b),a(this).attr("aria-expanded",g)}),a(".tool_dataprivacy-expand-all").data("visibilityState",f),c.get_string(f,"tool_dataprivacy").then(function(b){a(".tool_dataprivacy-expand-all").html(b)})["catch"](Notification.exception),a(":header i.fa").each(function(){a(this).removeClass(h),a(this).addClass(i)}),a(":header img.icon").each(function(){a(this).attr("src",j)})}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/templates"],function(a,b,c){return{processResults:function(b,c){var d=[];return a.each(c,function(a,b){d.push({value:b.id,label:b._label})}),d},transport:function(d,e,f,g){var h;h=b.call([{methodname:"tool_dataprivacy_get_users",args:{query:e}}]),h[0].then(function(b){var d=[],e=0;return a.each(b,function(a,b){d.push(c.render("tool_dataprivacy/form-user-selector-suggestion",b))}),a.when.apply(a.when,d).then(function(){var c=arguments;a.each(b,function(a,b){b._label=c[e],e++}),f(b)})}).fail(g)}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events","core/templates"],function(a,b,c,d,e,f,g){function h(a){var e={methodname:"tool_dataprivacy_contact_dpo",args:{message:a}},f="success";b.call([e])[0].then(function(a){return a.result?d.get_string("requestsubmitted","tool_dataprivacy"):(f="error",a.warnings.join("<br>"))}).done(function(a){c.addNotification({message:a,type:f})}).fail(c.exception)}var i={CANCEL_REQUEST:'[data-action="cancel"]',CONTACT_DPO:'[data-action="contactdpo"]'},j=function(){this.registerEvents()};return j.prototype.registerEvents=function(){a(i.CANCEL_REQUEST).click(function(g){g.preventDefault();var h=a(this).data("requestid"),i=[{key:"cancelrequest",component:"tool_dataprivacy"},{key:"cancelrequestconfirmation",component:"tool_dataprivacy"}];d.get_strings(i).then(function(a){var d=a[0],g=a[1];return e.create({title:d,body:g,type:e.types.SAVE_CANCEL}).then(function(a){return a.setSaveButtonText(d),a.getRoot().on(f.save,function(){var a={requestid:h},d={methodname:"tool_dataprivacy_cancel_data_request",args:a};b.call([d])[0].done(function(a){a.result?window.location.reload():c.addNotification({message:a.warnings[0].message,type:"error"})}).fail(c.exception)}),a.getRoot().on(f.hidden,function(){a.destroy()}),a})}).done(function(a){a.show()}).fail(c.exception)}),a(i.CONTACT_DPO).click(function(b){b.preventDefault();var i=a(this).data("replytoemail"),j=[{key:"contactdataprotectionofficer",component:"tool_dataprivacy"},{key:"send",component:"tool_dataprivacy"}],k="";d.get_strings(j).then(function(a){var b=a[0];k=a[1];var c={replytoemail:i};return e.create({title:b,body:g.render("tool_dataprivacy/contact_dpo",c),type:e.types.SAVE_CANCEL,large:!0})}).done(function(b){b.setSaveButtonText(k),b.getRoot().on(f.save,function(b){var c=a("#message").val().trim();0===c.length?(b.preventDefault(),a('[data-region="messageinput"]').addClass("has-danger notifyproblem"),a("#id_error_message").removeAttr("hidden")):h(c)}),b.getRoot().on(f.hidden,function(){b.destroy()}),b.show()}).fail(c.exception)})},{init:function(){return new j}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events"],function(a,b,c,d,e,f){var g={DELETE:'[data-action="deletepurpose"]'},h=function(){this.registerEvents()};return h.prototype.registerEvents=function(){a(g.DELETE).click(function(g){g.preventDefault();var h=a(this).data("id"),i=a(this).data("name"),j=[{key:"deletepurpose",component:"tool_dataprivacy"},{key:"deletepurposetext",component:"tool_dataprivacy",param:i},{key:"delete"}];d.get_strings(j).then(function(d){var g=d[0],i=d[1],j=d[2];return e.create({title:g,body:i,type:e.types.SAVE_CANCEL}).then(function(d){return d.setSaveButtonText(j),d.getRoot().on(f.save,function(){var d={methodname:"tool_dataprivacy_delete_purpose",args:{id:h}};b.call([d])[0].done(function(b){b.result?a('tr[data-purposeid="'+h+'"]').remove():c.addNotification({message:b.warnings[0].message,type:"error"})}).fail(c.exception)}),d.getRoot().on(f.hidden,function(){d.destroy()}),d})}).done(function(a){a.show()}).fail(c.exception)})},{init:function(){return new h}}});
@@ -0,0 +1 @@
+define(["jquery","core/form-autocomplete","core/str","core/notification"],function(a,b,c,d){var e={REQUEST_FILTERS:"#request-filters"},f=function(){var f=[{key:"filter",component:"moodle"},{key:"nofiltersapplied",component:"tool_dataprivacy"}];c.get_strings(f).then(function(a){var c=a[0],d=a[1];return b.enhance(e.REQUEST_FILTERS,!1,"",c,!1,!0,d,!0)}).fail(d.exception);var g=a(e.REQUEST_FILTERS).val();a(e.REQUEST_FILTERS).on("change",function(){var b=a(this).val();g.join(",")!==b.join(",")&&(0===b.length&&a("#filters-cleared").val(1),a(this.form).submit())})};return{init:function(){f()}}});
@@ -0,0 +1 @@
+define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events","core/templates","tool_dataprivacy/data_request_modal","tool_dataprivacy/events"],function(a,b,c,d,e,f,g,h,i){function j(a,b){var g=[],h="",j={requestid:b};switch(a){case i.approve:g=[{key:"approverequest",component:"tool_dataprivacy"},{key:"confirmapproval",component:"tool_dataprivacy"}],h="tool_dataprivacy_approve_data_request";break;case i.deny:g=[{key:"denyrequest",component:"tool_dataprivacy"},{key:"confirmdenial",component:"tool_dataprivacy"}],h="tool_dataprivacy_deny_data_request";break;case i.complete:g=[{key:"markcomplete",component:"tool_dataprivacy"},{key:"confirmcompletion",component:"tool_dataprivacy"}],h="tool_dataprivacy_mark_complete"}var l="";d.get_strings(g).then(function(a){l=a[0];var b=a[1];return e.create({title:l,body:b,type:e.types.SAVE_CANCEL})}).then(function(a){a.setSaveButtonText(l),a.getRoot().on(f.save,function(){k(h,j)}),a.getRoot().on(f.hidden,function(){a.destroy()}),a.show()})["catch"](c.exception)}function k(a,d){var e={methodname:a,args:d};b.call([e])[0].done(function(a){a.result?window.location.reload():c.addNotification({message:a.warnings[0].message,type:"error"})}).fail(c.exception)}var l={APPROVE_REQUEST:'[data-action="approve"]',DENY_REQUEST:'[data-action="deny"]',VIEW_REQUEST:'[data-action="view"]',MARK_COMPLETE:'[data-action="complete"]'},m=function(){this.registerEvents()};return m.prototype.registerEvents=function(){a(l.VIEW_REQUEST).click(function(d){d.preventDefault();var l=a(this).data("requestid"),m={requestid:l},n={methodname:"tool_dataprivacy_get_data_request",args:m},o=b.call([n]);a.when(o[0]).then(function(a){return a.result?a.result:(c.addNotification({message:a.warnings[0].message,type:"error"}),!1)}).then(function(a){var b=e.types.DEFAULT;a.approvedeny?b=h.TYPE:a.canmarkcomplete&&(b=h.TYPE_ENQUIRY);var c=g.render("tool_dataprivacy/request_details",a);return e.create({title:a.typename,body:c,type:b,large:!0})}).then(function(a){a.getRoot().on(i.approve,function(){j(i.approve,l)}),a.getRoot().on(i.deny,function(){j(i.deny,l)}),a.getRoot().on(i.complete,function(){var a={requestid:l};k("tool_dataprivacy_mark_complete",a)}),a.getRoot().on(f.hidden,function(){a.destroy()}),a.show()})["catch"](c.exception)}),a(l.APPROVE_REQUEST).click(function(b){b.preventDefault();var c=a(this).data("requestid");j(i.approve,c)}),a(l.DENY_REQUEST).click(function(b){b.preventDefault();var c=a(this).data("requestid");j(i.deny,c)}),a(l.MARK_COMPLETE).click(function(b){b.preventDefault(),j(i.complete,a(this).data("requestid"))})},m});
@@ -0,0 +1,172 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to add categories.
+ *
+ * @module     tool_dataprivacy/add_category
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/str', 'core/ajax', 'core/notification', 'core/modal_factory', 'core/modal_events', 'core/fragment'],
+    function($, Str, Ajax, Notification, ModalFactory, ModalEvents, Fragment) {
+
+        var SELECTORS = {
+            CATEGORY_LINK: '[data-add-element="category"]',
+        };
+
+        var AddCategory = function(contextId) {
+            this.contextId = contextId;
+
+            var stringKeys = [
+                {
+                    key: 'addcategory',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'save',
+                    component: 'admin'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+        };
+
+        /**
+         * @var {int} contextId
+         * @private
+         */
+        AddCategory.prototype.contextId = 0;
+
+        /**
+         * @var {Promise}
+         * @private
+         */
+        AddCategory.prototype.strings = 0;
+
+        AddCategory.prototype.registerEventListeners = function() {
+
+            var trigger = $(SELECTORS.CATEGORY_LINK);
+            trigger.on('click', function() {
+                return this.strings.then(function(strings) {
+                    ModalFactory.create({
+                        type: ModalFactory.types.SAVE_CANCEL,
+                        title: strings[0],
+                        body: '',
+                    }, trigger).done(function(modal) {
+                        this.setupFormModal(modal, strings[1]);
+                    }.bind(this));
+                }.bind(this))
+                .fail(Notification.exception);
+            }.bind(this));
+
+        };
+
+        /**
+         * @method getBody
+         * @param {Object} formdata
+         * @private
+         * @return {Promise}
+         */
+        AddCategory.prototype.getBody = function(formdata) {
+
+            var params = null;
+            if (typeof formdata !== "undefined") {
+                params = {jsonformdata: JSON.stringify(formdata)};
+            }
+            // Get the content of the modal.
+            return Fragment.loadFragment('tool_dataprivacy', 'addcategory_form', this.contextId, params);
+        };
+
+        AddCategory.prototype.setupFormModal = function(modal, saveText) {
+            modal.setLarge();
+
+            modal.setSaveButtonText(saveText);
+
+            // We want to reset the form every time it is opened.
+            modal.getRoot().on(ModalEvents.hidden, this.destroy.bind(this));
+
+            modal.setBody(this.getBody());
+
+            // We catch the modal save event, and use it to submit the form inside the modal.
+            // Triggering a form submission will give JS validation scripts a chance to check for errors.
+            modal.getRoot().on(ModalEvents.save, this.submitForm.bind(this));
+            // We also catch the form submit event and use it to submit the form with ajax.
+            modal.getRoot().on('submit', 'form', this.submitFormAjax.bind(this));
+
+            this.modal = modal;
+
+            modal.show();
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        AddCategory.prototype.submitForm = function(e) {
+            e.preventDefault();
+            this.modal.getRoot().find('form').submit();
+        };
+
+        AddCategory.prototype.submitFormAjax = function(e) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = this.modal.getRoot().find('form').serialize();
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_create_category_form',
+                args: {jsonformdata: JSON.stringify(formData)},
+                done: function(data) {
+                    if (data.validationerrors) {
+                        this.modal.setBody(this.getBody(formData));
+                    } else {
+                        this.close();
+                    }
+                }.bind(this),
+                fail: Notification.exception
+            }]);
+        };
+
+        AddCategory.prototype.close = function() {
+            this.destroy();
+            document.location.reload();
+        };
+
+        AddCategory.prototype.destroy = function() {
+            Y.use('moodle-core-formchangechecker', function() {
+                M.core_formchangechecker.reset_form_dirty_state();
+            });
+            this.modal.destroy();
+        };
+
+        AddCategory.prototype.removeListeners = function() {
+            $(SELECTORS.CATEGORY_LINK).off('click');
+        };
+
+        return /** @alias module:tool_dataprivacy/add_category */ {
+            getInstance: function(contextId) {
+                return new AddCategory(contextId);
+            }
+        };
+    }
+);
+
@@ -0,0 +1,173 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to add purposes.
+ *
+ * @module     tool_dataprivacy/add_purpose
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/str', 'core/ajax', 'core/notification', 'core/modal_factory', 'core/modal_events', 'core/fragment'],
+    function($, Str, Ajax, Notification, ModalFactory, ModalEvents, Fragment) {
+
+        var SELECTORS = {
+            PURPOSE_LINK: '[data-add-element="purpose"]',
+        };
+
+        var AddPurpose = function(contextId) {
+            this.contextId = contextId;
+
+            var stringKeys = [
+                {
+                    key: 'addpurpose',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'save',
+                    component: 'admin'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+        };
+
+        /**
+         * @var {int} contextId
+         * @private
+         */
+        AddPurpose.prototype.contextId = 0;
+
+        /**
+         * @var {Promise}
+         * @private
+         */
+        AddPurpose.prototype.strings = 0;
+
+        AddPurpose.prototype.registerEventListeners = function() {
+
+            var trigger = $(SELECTORS.PURPOSE_LINK);
+            trigger.on('click', function() {
+                return this.strings.then(function(strings) {
+                    ModalFactory.create({
+                        type: ModalFactory.types.SAVE_CANCEL,
+                        title: strings[0],
+                        body: '',
+                    }, trigger).done(function(modal) {
+                        this.setupFormModal(modal, strings[1]);
+                    }.bind(this));
+                }.bind(this))
+                .fail(Notification.exception);
+            }.bind(this));
+
+        };
+
+        /**
+         * @method getBody
+         * @param {Object} formdata
+         * @private
+         * @return {Promise}
+         */
+        AddPurpose.prototype.getBody = function(formdata) {
+
+            var params = null;
+            if (typeof formdata !== "undefined") {
+                params = {jsonformdata: JSON.stringify(formdata)};
+            }
+            // Get the content of the modal.
+            return Fragment.loadFragment('tool_dataprivacy', 'addpurpose_form', this.contextId, params);
+        };
+
+        AddPurpose.prototype.setupFormModal = function(modal, saveText) {
+            modal.setLarge();
+
+            modal.setSaveButtonText(saveText);
+
+            // We want to reset the form every time it is opened.
+            modal.getRoot().on(ModalEvents.hidden, this.destroy.bind(this));
+
+            modal.setBody(this.getBody());
+
+            // We catch the modal save event, and use it to submit the form inside the modal.
+            // Triggering a form submission will give JS validation scripts a chance to check for errors.
+            modal.getRoot().on(ModalEvents.save, this.submitForm.bind(this));
+            // We also catch the form submit event and use it to submit the form with ajax.
+            modal.getRoot().on('submit', 'form', this.submitFormAjax.bind(this));
+
+            this.modal = modal;
+
+            modal.show();
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        AddPurpose.prototype.submitForm = function(e) {
+            e.preventDefault();
+            this.modal.getRoot().find('form').submit();
+        };
+
+        AddPurpose.prototype.submitFormAjax = function(e) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = this.modal.getRoot().find('form').serialize();
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_create_purpose_form',
+                args: {jsonformdata: JSON.stringify(formData)},
+                done: function(data) {
+                    if (data.validationerrors) {
+                        this.modal.setBody(this.getBody(formData));
+                    } else {
+                        this.close();
+                    }
+                }.bind(this),
+
+                fail: Notification.exception
+            }]);
+        };
+
+        AddPurpose.prototype.close = function() {
+            this.destroy();
+            document.location.reload();
+        };
+
+        AddPurpose.prototype.destroy = function() {
+            Y.use('moodle-core-formchangechecker', function() {
+                M.core_formchangechecker.reset_form_dirty_state();
+            });
+            this.modal.destroy();
+        };
+
+        AddPurpose.prototype.removeListeners = function() {
+            $(SELECTORS.PURPOSE_LINK).off('click');
+        };
+
+        return /** @alias module:tool_dataprivacy/add_purpose */ {
+            getInstance: function(contextId) {
+                return new AddPurpose(contextId);
+            }
+        };
+    }
+);
+
@@ -0,0 +1,132 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module for categories actions.
+ *
+ * @module     tool_dataprivacy/categoriesactions
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_factory',
+    'core/modal_events'],
+function($, Ajax, Notification, Str, ModalFactory, ModalEvents) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{DELETE: string}}
+     */
+    var ACTIONS = {
+        DELETE: '[data-action="deletecategory"]',
+    };
+
+    /**
+     * CategoriesActions class.
+     */
+    var CategoriesActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    CategoriesActions.prototype.registerEvents = function() {
+        $(ACTIONS.DELETE).click(function(e) {
+            e.preventDefault();
+
+            var id = $(this).data('id');
+            var categoryname = $(this).data('name');
+            var stringkeys = [
+                {
+                    key: 'deletecategory',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'deletecategorytext',
+                    component: 'tool_dataprivacy',
+                    param: categoryname
+                },
+                {
+                    key: 'delete'
+                }
+            ];
+
+            Str.get_strings(stringkeys).then(function(langStrings) {
+                var title = langStrings[0];
+                var confirmMessage = langStrings[1];
+                var buttonText = langStrings[2];
+                return ModalFactory.create({
+                    title: title,
+                    body: confirmMessage,
+                    type: ModalFactory.types.SAVE_CANCEL
+                }).then(function(modal) {
+                    modal.setSaveButtonText(buttonText);
+
+                    // Handle save event.
+                    modal.getRoot().on(ModalEvents.save, function() {
+
+                        var request = {
+                            methodname: 'tool_dataprivacy_delete_category',
+                            args: {'id': id}
+                        };
+
+                        Ajax.call([request])[0].done(function(data) {
+                            if (data.result) {
+                                $('tr[data-categoryid="' + id + '"]').remove();
+                            } else {
+                                Notification.addNotification({
+                                    message: data.warnings[0].message,
+                                    type: 'error'
+                                });
+                            }
+                        }).fail(Notification.exception);
+                    });
+
+                    // Handle hidden event.
+                    modal.getRoot().on(ModalEvents.hidden, function() {
+                        // Destroy when hidden.
+                        modal.destroy();
+                    });
+
+                    return modal;
+                });
+            }).done(function(modal) {
+                modal.show();
+
+            }).fail(Notification.exception);
+        });
+    };
+
+    return /** @alias module:tool_dataprivacy/categoriesactions */ {
+        // Public variables and functions.
+
+        /**
+         * Initialise the module.
+         *
+         * @method init
+         * @return {CategoriesActions}
+         */
+        'init': function() {
+            return new CategoriesActions();
+        }
+    };
+});
@@ -0,0 +1,156 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_deletion
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_factory',
+    'core/modal_events'],
+function($, Ajax, Notification, Str, ModalFactory, ModalEvents) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{MARK_FOR_DELETION: string}}
+     * @type {{SELECT_ALL: string}}
+     */
+    var ACTIONS = {
+        MARK_FOR_DELETION: '[data-action="markfordeletion"]',
+        SELECT_ALL: '[data-action="selectall"]',
+    };
+
+    /**
+     * List of selectors.
+     *
+     * @type {{SELECTCONTEXT: string}}
+     */
+    var SELECTORS = {
+        SELECTCONTEXT: '.selectcontext',
+    };
+
+    /**
+     * DataDeletionActions class.
+     */
+    var DataDeletionActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    DataDeletionActions.prototype.registerEvents = function() {
+        $(ACTIONS.MARK_FOR_DELETION).click(function(e) {
+            e.preventDefault();
+
+            var selectedIds = [];
+            $(SELECTORS.SELECTCONTEXT).each(function() {
+                var checkbox = $(this);
+                if (checkbox.is(':checked')) {
+                    selectedIds.push(checkbox.val());
+                }
+            });
+            showConfirmation(selectedIds);
+        });
+
+        $(ACTIONS.SELECT_ALL).change(function(e) {
+            e.preventDefault();
+
+            var selectallnone = $(this);
+            if (selectallnone.is(':checked')) {
+                $(SELECTORS.SELECTCONTEXT).attr('checked', 'checked');
+            } else {
+                $(SELECTORS.SELECTCONTEXT).removeAttr('checked');
+            }
+        });
+    };
+
+    /**
+     * Show the confirmation dialogue.
+     *
+     * @param {Array} ids The array of expired context record IDs.
+     */
+    function showConfirmation(ids) {
+        var keys = [
+            {
+                key: 'confirm',
+                component: 'moodle'
+            },
+            {
+                key: 'confirmcontextdeletion',
+                component: 'tool_dataprivacy'
+            }
+        ];
+        var wsfunction = 'tool_dataprivacy_confirm_contexts_for_deletion';
+
+        var modalTitle = '';
+        Str.get_strings(keys).then(function(langStrings) {
+            modalTitle = langStrings[0];
+            var confirmMessage = langStrings[1];
+            return ModalFactory.create({
+                title: modalTitle,
+                body: confirmMessage,
+                type: ModalFactory.types.SAVE_CANCEL
+            });
+        }).then(function(modal) {
+            modal.setSaveButtonText(modalTitle);
+
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, function() {
+                // Confirm the request.
+                var params = {
+                    'ids': ids
+                };
+
+                var request = {
+                    methodname: wsfunction,
+                    args: params
+                };
+
+                Ajax.call([request])[0].done(function(data) {
+                    if (data.result) {
+                        window.location.reload();
+                    } else {
+                        Notification.addNotification({
+                            message: data.warnings[0].message,
+                            type: 'error'
+                        });
+                    }
+                }).fail(Notification.exception);
+            });
+
+            // Handle hidden event.
+            modal.getRoot().on(ModalEvents.hidden, function() {
+                // Destroy when hidden.
+                modal.destroy();
+            });
+
+            return modal;
+        }).done(function(modal) {
+            modal.show();
+        }).fail(Notification.exception);
+    }
+
+    return DataDeletionActions;
+});
@@ -0,0 +1,318 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_registry
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/str', 'core/ajax', 'core/notification', 'core/templates', 'core/modal_factory',
+    'core/modal_events', 'core/fragment', 'tool_dataprivacy/add_purpose', 'tool_dataprivacy/add_category'],
+    function($, Str, Ajax, Notification, Templates, ModalFactory, ModalEvents, Fragment, AddPurpose, AddCategory) {
+
+        var SELECTORS = {
+            TREE_NODES: '[data-context-tree-node=1]',
+            FORM_CONTAINER: '#context-form-container',
+        };
+
+        var DataRegistry = function(systemContextId, initContextLevel, initContextId) {
+            this.systemContextId = systemContextId;
+            this.currentContextLevel = initContextLevel;
+            this.currentContextId = initContextId;
+            this.init();
+        };
+
+        /**
+         * @var {int} systemContextId
+         * @private
+         */
+        DataRegistry.prototype.systemContextId = 0;
+
+        /**
+         * @var {int} currentContextLevel
+         * @private
+         */
+        DataRegistry.prototype.currentContextLevel = 0;
+
+        /**
+         * @var {int} currentContextId
+         * @private
+         */
+        DataRegistry.prototype.currentContextId = 0;
+
+        /**
+         * @var {AddPurpose} addpurpose
+         * @private
+         */
+        DataRegistry.prototype.addpurpose = null;
+
+        /**
+         * @var {AddCategory} addcategory
+         * @private
+         */
+        DataRegistry.prototype.addcategory = null;
+
+        DataRegistry.prototype.init = function() {
+            // Add purpose and category modals always at system context.
+            this.addpurpose = AddPurpose.getInstance(this.systemContextId);
+            this.addcategory = AddCategory.getInstance(this.systemContextId);
+
+            var stringKeys = [
+                {
+                    key: 'changessaved',
+                    component: 'moodle'
+                }, {
+                    key: 'contextpurposecategorysaved',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'noblockstoload',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'noactivitiestoload',
+                    component: 'tool_dataprivacy'
+                }, {
+                    key: 'nocoursestoload',
+                    component: 'tool_dataprivacy'
+                }
+            ];
+            this.strings = Str.get_strings(stringKeys);
+
+            this.registerEventListeners();
+
+            // Load the default context level form.
+            if (this.currentContextId) {
+                this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
+            } else {
+                this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
+            }
+        };
+
+        DataRegistry.prototype.registerEventListeners = function() {
+            $(SELECTORS.TREE_NODES).on('click', function(ev) {
+                ev.preventDefault();
+
+                var trigger = $(ev.currentTarget);
+
+                // Active node.
+                $(SELECTORS.TREE_NODES).removeClass('active');
+                trigger.addClass('active');
+
+                var contextLevel = trigger.data('contextlevel');
+                var contextId = trigger.data('contextid');
+                if (contextLevel) {
+                    // Context level level.
+
+                    window.history.pushState({}, null, '?contextlevel=' + contextLevel);
+
+                    // Remove previous add purpose and category listeners to avoid memory leaks.
+                    this.addpurpose.removeListeners();
+                    this.addcategory.removeListeners();
+
+                    // Load the context level form.
+                    this.currentContextLevel = contextLevel;
+                    this.loadForm('contextlevel_form', [this.currentContextLevel], this.submitContextLevelFormAjax.bind(this));
+                } else if (contextId) {
+                    // Context instance level.
+
+                    window.history.pushState({}, null, '?contextid=' + contextId);
+
+                    // Remove previous add purpose and category listeners to avoid memory leaks.
+                    this.addpurpose.removeListeners();
+                    this.addcategory.removeListeners();
+
+                    // Load the context level form.
+                    this.currentContextId = contextId;
+                    this.loadForm('context_form', [this.currentContextId], this.submitContextFormAjax.bind(this));
+                } else {
+                    // Expandable nodes.
+
+                    var expandContextId = trigger.data('expandcontextid');
+                    var expandElement = trigger.data('expandelement');
+                    var expanded = trigger.data('expanded');
+
+                    // Extra checking that there is an expandElement because we remove it after loading 0 branches.
+                    if (expandElement) {
+
+                        if (!expanded) {
+                            if (trigger.data('loaded') || !expandContextId || !expandElement) {
+                                this.expand(trigger);
+                            } else {
+
+                                trigger.find('> i').removeClass('fa-plus');
+                                trigger.find('> i').addClass('fa-circle-o-notch fa-spin');
+                                this.loadExtra(trigger, expandContextId, expandElement);
+                            }
+                        } else {
+                            this.collapse(trigger);
+                        }
+                    }
+                }
+
+            }.bind(this));
+        };
+
+        DataRegistry.prototype.removeListeners = function() {
+            $(SELECTORS.TREE_NODES).off('click');
+        };
+
+        DataRegistry.prototype.loadForm = function(fragmentName, fragmentArgs, formSubmitCallback) {
+
+            this.clearForm();
+
+            var fragment = Fragment.loadFragment('tool_dataprivacy', fragmentName, this.systemContextId, fragmentArgs);
+            fragment.done(function(html, js) {
+
+                $(SELECTORS.FORM_CONTAINER).html(html);
+                Templates.runTemplateJS(js);
+
+                this.addpurpose.registerEventListeners();
+                this.addcategory.registerEventListeners();
+
+                // We also catch the form submit event and use it to submit the form with ajax.
+                $(SELECTORS.FORM_CONTAINER).on('submit', 'form', formSubmitCallback);
+
+            }.bind(this)).fail(Notification.exception);
+        };
+
+        DataRegistry.prototype.clearForm = function() {
+            // For the previously loaded form.
+            Y.use('moodle-core-formchangechecker', function() {
+                M.core_formchangechecker.reset_form_dirty_state();
+            });
+
+            // Remove previous listeners.
+            $(SELECTORS.FORM_CONTAINER).off('submit', 'form');
+        };
+
+        /**
+         * This triggers a form submission, so that any mform elements can do final tricks before the form submission is processed.
+         *
+         * @method submitForm
+         * @param {Event} e Form submission event.
+         * @private
+         */
+        DataRegistry.prototype.submitForm = function(e) {
+            e.preventDefault();
+            $(SELECTORS.FORM_CONTAINER).find('form').submit();
+        };
+
+        DataRegistry.prototype.submitContextLevelFormAjax = function(e) {
+            this.submitFormAjax(e, 'tool_dataprivacy_set_contextlevel_form');
+        };
+
+        DataRegistry.prototype.submitContextFormAjax = function(e) {
+            this.submitFormAjax(e, 'tool_dataprivacy_set_context_form');
+        };
+
+        DataRegistry.prototype.submitFormAjax = function(e, saveMethodName) {
+            // We don't want to do a real form submission.
+            e.preventDefault();
+
+            // Convert all the form elements values to a serialised string.
+            var formData = $(SELECTORS.FORM_CONTAINER).find('form').serialize();
+            return this.strings.then(function(strings) {
+                Ajax.call([{
+                    methodname: saveMethodName,
+                    args: {jsonformdata: JSON.stringify(formData)},
+                    done: function() {
+                        Notification.alert(strings[0], strings[1]);
+                    },
+                    fail: Notification.exception
+                }]);
+                return;
+            }).catch(Notification.exception);
+
+        };
+
+        DataRegistry.prototype.loadExtra = function(parentNode, expandContextId, expandElement) {
+
+            Ajax.call([{
+                methodname: 'tool_dataprivacy_tree_extra_branches',
+                args: {
+                    contextid: expandContextId,
+                    element: expandElement,
+                },
+                done: function(data) {
+                    if (data.branches.length == 0) {
+                        this.noElements(parentNode, expandElement);
+                        return;
+                    }
+                    Templates.render('tool_dataprivacy/context_tree_branches', data)
+                        .then(function(html) {
+                            parentNode.after(html);
+                            this.removeListeners();
+                            this.registerEventListeners();
+                            this.expand(parentNode);
+                            parentNode.data('loaded', 1);
+                            return;
+                        }.bind(this))
+                        .fail(Notification.exception);
+                }.bind(this),
+                fail: Notification.exception
+            }]);
+        };
+
+        DataRegistry.prototype.noElements = function(node, expandElement) {
+            node.data('expandcontextid', '');
+            node.data('expandelement', '');
+            this.strings.then(function(strings) {
+
+                // 2 = blocks, 3 = activities, 4 = courses (although courses is not likely really).
+                var key = 2;
+                if (expandElement == 'module') {
+                    key = 3;
+                } else if (expandElement == 'course') {
+                    key = 4;
+                }
+                node.text(strings[key]);
+                return;
+            }).fail(Notification.exception);
+        };
+
+        DataRegistry.prototype.collapse = function(node) {
+            node.data('expanded', 0);
+            node.siblings('nav').addClass('hidden');
+            node.find('> i').removeClass('fa-minus');
+            node.find('> i').addClass('fa-plus');
+        };
+
+        DataRegistry.prototype.expand = function(node) {
+            node.data('expanded', 1);
+            node.siblings('nav').removeClass('hidden');
+            node.find('> i').removeClass('fa-plus');
+            // Also remove the spinning one if data was just loaded.
+            node.find('> i').removeClass('fa-circle-o-notch fa-spin');
+            node.find('> i').addClass('fa-minus');
+        };
+        return /** @alias module:tool_dataprivacy/data_registry */ {
+
+            /**
+             * Initialise the page.
+             *
+             * @param {Number} systemContextId
+             * @param {Number} initContextLevel
+             * @param {Number} initContextId
+             * @return {DataRegistry}
+             */
+            init: function(systemContextId, initContextLevel, initContextId) {
+                return new DataRegistry(systemContextId, initContextLevel, initContextId);
+            }
+        };
+    }
+);
+
@@ -0,0 +1,98 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/data_request_modal
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/notification', 'core/custom_interaction_events', 'core/modal', 'core/modal_registry',
+        'tool_dataprivacy/events'],
+    function($, Notification, CustomEvents, Modal, ModalRegistry, DataPrivacyEvents) {
+
+        var registered = false;
+        var SELECTORS = {
+            APPROVE_BUTTON: '[data-action="approve"]',
+            DENY_BUTTON: '[data-action="deny"]',
+            COMPLETE_BUTTON: '[data-action="complete"]'
+        };
+
+        /**
+         * Constructor for the Modal.
+         *
+         * @param {object} root The root jQuery element for the modal
+         */
+        var ModalDataRequest = function(root) {
+            Modal.call(this, root);
+        };
+
+        ModalDataRequest.TYPE = 'tool_dataprivacy-data_request';
+        ModalDataRequest.TYPE_ENQUIRY = 'tool_dataprivacy-complete_request';
+        ModalDataRequest.prototype = Object.create(Modal.prototype);
+        ModalDataRequest.prototype.constructor = ModalDataRequest;
+
+        /**
+         * Set up all of the event handling for the modal.
+         *
+         * @method registerEventListeners
+         */
+        ModalDataRequest.prototype.registerEventListeners = function() {
+            // Apply parent event listeners.
+            Modal.prototype.registerEventListeners.call(this);
+
+            this.getModal().on(CustomEvents.events.activate, SELECTORS.APPROVE_BUTTON, function(e, data) {
+                var approveEvent = $.Event(DataPrivacyEvents.approve);
+                this.getRoot().trigger(approveEvent, this);
+
+                if (!approveEvent.isDefaultPrevented()) {
+                    this.hide();
+                    data.originalEvent.preventDefault();
+                }
+            }.bind(this));
+
+            this.getModal().on(CustomEvents.events.activate, SELECTORS.DENY_BUTTON, function(e, data) {
+                var denyEvent = $.Event(DataPrivacyEvents.deny);
+                this.getRoot().trigger(denyEvent, this);
+
+                if (!denyEvent.isDefaultPrevented()) {
+                    this.hide();
+                    data.originalEvent.preventDefault();
+                }
+            }.bind(this));
+
+            this.getModal().on(CustomEvents.events.activate, SELECTORS.COMPLETE_BUTTON, function(e, data) {
+                var completeEvent = $.Event(DataPrivacyEvents.complete);
+                this.getRoot().trigger(completeEvent, this);
+
+                if (!completeEvent.isDefaultPrevented()) {
+                    this.hide();
+                    data.originalEvent.preventDefault();
+                }
+            }.bind(this));
+        };
+
+        // Automatically register with the modal registry the first time this module is imported so that you can create modals
+        // of this type using the modal factory.
+        if (!registered) {
+            ModalRegistry.register(ModalDataRequest.TYPE, ModalDataRequest, 'tool_dataprivacy/data_request_modal');
+            ModalRegistry.register(ModalDataRequest.TYPE_ENQUIRY, ModalDataRequest, 'tool_dataprivacy/mark_request_complete_modal');
+            registered = true;
+        }
+
+        return ModalDataRequest;
+    });
@@ -0,0 +1,92 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Module to update the displayed retention period.
+ *
+ * @module     tool_dataprivacy/effective_retention_period
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery'],
+    function($) {
+
+        var SELECTORS = {
+            PURPOSE_SELECT: '#id_purposeid',
+            RETENTION_FIELD_BOOST: '#id_error_retention_current',
+            RETENTION_FIELD_CLEAN: '#fitem_id_retention_current [data-fieldtype=static]',
+        };
+
+        /**
+         * Constructor for the retention period display.
+         *
+         * @param {Array} purposeRetentionPeriods Associative array of purposeids with effective retention period at this context
+         */
+        var EffectiveRetentionPeriod = function(purposeRetentionPeriods) {
+            this.purposeRetentionPeriods = purposeRetentionPeriods;
+            this.registerEventListeners();
+        };
+
+        /**
+         * Removes the current 'change' listeners.
+         *
+         * Useful when a new form is loaded.
+         */
+        var removeListeners = function() {
+            $(SELECTORS.PURPOSE_SELECT).off('change');
+        };
+
+        /**
+         * @var {Array} purposeRetentionPeriods
+         * @private
+         */
+        EffectiveRetentionPeriod.prototype.purposeRetentionPeriods = [];
+
+        /**
+         * Add purpose change listeners.
+         *
+         * @method registerEventListeners
+         */
+        EffectiveRetentionPeriod.prototype.registerEventListeners = function() {
+
+            $(SELECTORS.PURPOSE_SELECT).on('change', function(ev) {
+                var selected = $(ev.currentTarget).val();
+                var selectedPurpose = this.purposeRetentionPeriods[selected];
+
+                var cleanSelector = $(SELECTORS.RETENTION_FIELD_CLEAN);
+                if (cleanSelector.length > 0) {
+                    cleanSelector.text(selectedPurpose);
+                } else {
+                    var boostSelector = $(SELECTORS.RETENTION_FIELD_BOOST);
+                    var retentionField = boostSelector.siblings();
+                    if (retentionField.length > 0) {
+                        retentionField.text(selectedPurpose);
+                    }
+                }
+
+            }.bind(this));
+        };
+
+        return /** @alias module:tool_dataprivacy/effective_retention_period */ {
+            init: function(purposeRetentionPeriods) {
+                // Remove previously attached listeners.
+                removeListeners();
+                return new EffectiveRetentionPeriod(purposeRetentionPeriods);
+            }
+        };
+    }
+);
+
@@ -0,0 +1,31 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contain the events the data privacy tool can fire.
+ *
+ * @module     tool_dataprivacy/events
+ * @class      events
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([], function() {
+    return {
+        approve: 'tool_dataprivacy-data_request:approve',
+        deny: 'tool_dataprivacy-data_request:deny',
+        complete: 'tool_dataprivacy-data_request:complete'
+    };
+});
@@ -0,0 +1,88 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/expand_contract
+ * @class      page-expand-contract
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define(['jquery', 'core/url', 'core/str'], function($, url, str) {
+
+    var expandedImage = $('<img alt="" src="' + url.imageUrl('t/expanded') + '"/>');
+    var collapsedImage = $('<img alt="" src="' + url.imageUrl('t/collapsed') + '"/>');
+
+    return /** @alias module:tool_dataprivacy/expand-collapse */ {
+        /**
+         * Expand or collapse a selected node.
+         *
+         * @param  {object} targetnode The node that we want to expand / collapse
+         * @param  {object} thisnode The node that was clicked.
+         */
+        expandCollapse: function(targetnode, thisnode) {
+            if (targetnode.hasClass('hide')) {
+                targetnode.removeClass('hide');
+                targetnode.addClass('visible');
+                targetnode.attr('aria-expanded', true);
+                thisnode.find(':header i.fa').removeClass('fa-plus-square');
+                thisnode.find(':header i.fa').addClass('fa-minus-square');
+                thisnode.find(':header img.icon').attr('src', expandedImage.attr('src'));
+            } else {
+                targetnode.removeClass('visible');
+                targetnode.addClass('hide');
+                targetnode.attr('aria-expanded', false);
+                thisnode.find(':header i.fa').removeClass('fa-minus-square');
+                thisnode.find(':header i.fa').addClass('fa-plus-square');
+                thisnode.find(':header img.icon').attr('src', collapsedImage.attr('src'));
+            }
+        },
+
+        /**
+         * Expand or collapse all nodes on this page.
+         *
+         * @param  {string} nextstate The next state to change to.
+         */
+        expandCollapseAll: function(nextstate) {
+            var currentstate = (nextstate == 'visible') ? 'hide' : 'visible';
+            var ariaexpandedstate = (nextstate == 'visible') ? true : false;
+            var iconclassnow = (nextstate == 'visible') ? 'fa-plus-square' : 'fa-minus-square';
+            var iconclassnext = (nextstate == 'visible') ? 'fa-minus-square' : 'fa-plus-square';
+            var imagenow = (nextstate == 'visible') ? expandedImage.attr('src') : collapsedImage.attr('src');
+            $('.' + currentstate).each(function() {
+                $(this).removeClass(currentstate);
+                $(this).addClass(nextstate);
+                $(this).attr('aria-expanded', ariaexpandedstate);
+            });
+            $('.tool_dataprivacy-expand-all').data('visibilityState', currentstate);
+
+            str.get_string(currentstate, 'tool_dataprivacy').then(function(langString) {
+                $('.tool_dataprivacy-expand-all').html(langString);
+                return;
+            }).catch(Notification.exception);
+
+            $(':header i.fa').each(function() {
+                $(this).removeClass(iconclassnow);
+                $(this).addClass(iconclassnext);
+            });
+            $(':header img.icon').each(function() {
+                $(this).attr('src', imagenow);
+            });
+        }
+    };
+});
@@ -0,0 +1,76 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Potential user selector module.
+ *
+ * @module     tool_dataprivacy/form-user-selector
+ * @class      form-user-selector
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+define(['jquery', 'core/ajax', 'core/templates'], function($, Ajax, Templates) {
+
+    return /** @alias module:tool_dataprivacy/form-user-selector */ {
+
+        processResults: function(selector, results) {
+            var users = [];
+            $.each(results, function(index, user) {
+                users.push({
+                    value: user.id,
+                    label: user._label
+                });
+            });
+            return users;
+        },
+
+        transport: function(selector, query, success, failure) {
+            var promise;
+
+            promise = Ajax.call([{
+                methodname: 'tool_dataprivacy_get_users',
+                args: {
+                    query: query
+                }
+            }]);
+
+            promise[0].then(function(results) {
+                var promises = [],
+                    i = 0;
+
+                // Render the label.
+                $.each(results, function(index, user) {
+                    promises.push(Templates.render('tool_dataprivacy/form-user-selector-suggestion', user));
+                });
+
+                // Apply the label to the results.
+                return $.when.apply($.when, promises).then(function() {
+                    var args = arguments;
+                    $.each(results, function(index, user) {
+                        user._label = args[i];
+                        i++;
+                    });
+                    success(results);
+                    return;
+                });
+
+            }).fail(failure);
+        }
+
+    };
+
+});
@@ -0,0 +1,221 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module to enable users to manage their own data requests.
+ *
+ * @module     tool_dataprivacy/myrequestactions
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_factory',
+    'core/modal_events',
+    'core/templates'],
+function($, Ajax, Notification, Str, ModalFactory, ModalEvents, Templates) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{CANCEL_REQUEST: string}}
+     * @type {{CONTACT_DPO: string}}
+     */
+    var ACTIONS = {
+        CANCEL_REQUEST: '[data-action="cancel"]',
+        CONTACT_DPO: '[data-action="contactdpo"]',
+    };
+
+    /**
+     * MyRequestActions class.
+     */
+    var MyRequestActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    MyRequestActions.prototype.registerEvents = function() {
+        $(ACTIONS.CANCEL_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            var stringkeys = [
+                {
+                    key: 'cancelrequest',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'cancelrequestconfirmation',
+                    component: 'tool_dataprivacy'
+                }
+            ];
+
+            Str.get_strings(stringkeys).then(function(langStrings) {
+                var title = langStrings[0];
+                var confirmMessage = langStrings[1];
+                return ModalFactory.create({
+                    title: title,
+                    body: confirmMessage,
+                    type: ModalFactory.types.SAVE_CANCEL
+                }).then(function(modal) {
+                    modal.setSaveButtonText(title);
+
+                    // Handle save event.
+                    modal.getRoot().on(ModalEvents.save, function() {
+                        // Cancel the request.
+                        var params = {
+                            'requestid': requestId
+                        };
+
+                        var request = {
+                            methodname: 'tool_dataprivacy_cancel_data_request',
+                            args: params
+                        };
+
+                        Ajax.call([request])[0].done(function(data) {
+                            if (data.result) {
+                                window.location.reload();
+                            } else {
+                                Notification.addNotification({
+                                    message: data.warnings[0].message,
+                                    type: 'error'
+                                });
+                            }
+                        }).fail(Notification.exception);
+                    });
+
+                    // Handle hidden event.
+                    modal.getRoot().on(ModalEvents.hidden, function() {
+                        // Destroy when hidden.
+                        modal.destroy();
+                    });
+
+                    return modal;
+                });
+            }).done(function(modal) {
+                // Show the modal!
+                modal.show();
+
+            }).fail(Notification.exception);
+        });
+
+        $(ACTIONS.CONTACT_DPO).click(function(e) {
+            e.preventDefault();
+
+            var replyToEmail = $(this).data('replytoemail');
+
+            var keys = [
+                {
+                    key: 'contactdataprotectionofficer',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'send',
+                    component: 'tool_dataprivacy'
+                },
+            ];
+
+            var sendButtonText = '';
+            Str.get_strings(keys).then(function(langStrings) {
+                var modalTitle = langStrings[0];
+                sendButtonText = langStrings[1];
+                var context = {
+                    'replytoemail': replyToEmail
+                };
+                return ModalFactory.create({
+                    title: modalTitle,
+                    body: Templates.render('tool_dataprivacy/contact_dpo', context),
+                    type: ModalFactory.types.SAVE_CANCEL,
+                    large: true
+                });
+            }).done(function(modal) {
+                modal.setSaveButtonText(sendButtonText);
+
+                // Handle send event.
+                modal.getRoot().on(ModalEvents.save, function(e) {
+                    var message = $('#message').val().trim();
+                    if (message.length === 0) {
+                        e.preventDefault();
+                        // Show validation error when the message is empty.
+                        $('[data-region="messageinput"]').addClass('has-danger notifyproblem');
+                        $('#id_error_message').removeAttr('hidden');
+                    } else {
+                        // Send the message.
+                        sendMessageToDPO(message);
+                    }
+                });
+
+                // Handle hidden event.
+                modal.getRoot().on(ModalEvents.hidden, function() {
+                    // Destroy when hidden.
+                    modal.destroy();
+                });
+
+                // Show the modal!
+                modal.show();
+            }).fail(Notification.exception);
+        });
+    };
+
+    /**
+     * Send message to the Data Protection Officer.
+     *
+     * @param {String} message The message to send.
+     */
+    function sendMessageToDPO(message) {
+        var request = {
+            methodname: 'tool_dataprivacy_contact_dpo',
+            args: {
+                message: message
+            }
+        };
+
+        var requestType = 'success';
+        Ajax.call([request])[0].then(function(data) {
+            if (data.result) {
+                return Str.get_string('requestsubmitted', 'tool_dataprivacy');
+            }
+            requestType = 'error';
+            return data.warnings.join('<br>');
+
+        }).done(function(message) {
+            Notification.addNotification({
+                message: message,
+                type: requestType
+            });
+
+        }).fail(Notification.exception);
+    }
+
+    return /** @alias module:tool_dataprivacy/myrequestactions */ {
+        // Public variables and functions.
+
+        /**
+         * Initialise the unified user filter.
+         *
+         * @method init
+         * @return {MyRequestActions}
+         */
+        'init': function() {
+            return new MyRequestActions();
+        }
+    };
+});
@@ -0,0 +1,132 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module for purposes actions.
+ *
+ * @module     tool_dataprivacy/purposesactions
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_factory',
+    'core/modal_events'],
+function($, Ajax, Notification, Str, ModalFactory, ModalEvents) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{DELETE: string}}
+     */
+    var ACTIONS = {
+        DELETE: '[data-action="deletepurpose"]',
+    };
+
+    /**
+     * PurposesActions class.
+     */
+    var PurposesActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    PurposesActions.prototype.registerEvents = function() {
+        $(ACTIONS.DELETE).click(function(e) {
+            e.preventDefault();
+
+            var id = $(this).data('id');
+            var purposename = $(this).data('name');
+            var stringkeys = [
+                {
+                    key: 'deletepurpose',
+                    component: 'tool_dataprivacy'
+                },
+                {
+                    key: 'deletepurposetext',
+                    component: 'tool_dataprivacy',
+                    param: purposename
+                },
+                {
+                    key: 'delete'
+                }
+            ];
+
+            Str.get_strings(stringkeys).then(function(langStrings) {
+                var title = langStrings[0];
+                var confirmMessage = langStrings[1];
+                var buttonText = langStrings[2];
+                return ModalFactory.create({
+                    title: title,
+                    body: confirmMessage,
+                    type: ModalFactory.types.SAVE_CANCEL
+                }).then(function(modal) {
+                    modal.setSaveButtonText(buttonText);
+
+                    // Handle save event.
+                    modal.getRoot().on(ModalEvents.save, function() {
+
+                        var request = {
+                            methodname: 'tool_dataprivacy_delete_purpose',
+                            args: {'id': id}
+                        };
+
+                        Ajax.call([request])[0].done(function(data) {
+                            if (data.result) {
+                                $('tr[data-purposeid="' + id + '"]').remove();
+                            } else {
+                                Notification.addNotification({
+                                    message: data.warnings[0].message,
+                                    type: 'error'
+                                });
+                            }
+                        }).fail(Notification.exception);
+                    });
+
+                    // Handle hidden event.
+                    modal.getRoot().on(ModalEvents.hidden, function() {
+                        // Destroy when hidden.
+                        modal.destroy();
+                    });
+
+                    return modal;
+                });
+            }).done(function(modal) {
+                modal.show();
+
+            }).fail(Notification.exception);
+        });
+    };
+
+    return /** @alias module:tool_dataprivacy/purposesactions */ {
+        // Public variables and functions.
+
+        /**
+         * Initialise the module.
+         *
+         * @method init
+         * @return {PurposesActions}
+         */
+        'init': function() {
+            return new PurposesActions();
+        }
+    };
+});
@@ -0,0 +1,84 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * JS module for the data requests filter.
+ *
+ * @module     tool_dataprivacy/request_filter
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/form-autocomplete', 'core/str', 'core/notification'], function($, Autocomplete, Str, Notification) {
+
+    /**
+     * Selectors.
+     *
+     * @access private
+     * @type {{REQUEST_FILTERS: string}}
+     */
+    var SELECTORS = {
+        REQUEST_FILTERS: '#request-filters'
+    };
+
+    /**
+     * Init function.
+     *
+     * @method init
+     * @private
+     */
+    var init = function() {
+        var stringkeys = [
+            {
+                key: 'filter',
+                component: 'moodle'
+            },
+            {
+                key: 'nofiltersapplied',
+                component: 'tool_dataprivacy'
+            }
+        ];
+
+        Str.get_strings(stringkeys).then(function(langstrings) {
+            var placeholder = langstrings[0];
+            var noSelectionString = langstrings[1];
+            return Autocomplete.enhance(SELECTORS.REQUEST_FILTERS, false, '', placeholder, false, true, noSelectionString, true);
+        }).fail(Notification.exception);
+
+        var last = $(SELECTORS.REQUEST_FILTERS).val();
+        $(SELECTORS.REQUEST_FILTERS).on('change', function() {
+            var current = $(this).val();
+            // Prevent form from submitting unnecessarily, eg. on blur when no filter is selected.
+            if (last.join(',') !== current.join(',')) {
+                // If we're submitting without filters, set the hidden input 'filters-cleared' to 1.
+                if (current.length === 0) {
+                    $('#filters-cleared').val(1);
+                }
+                $(this.form).submit();
+            }
+        });
+    };
+
+    return /** @alias module:core/form-autocomplete */ {
+        /**
+         * Initialise the unified user filter.
+         *
+         * @method init
+         */
+        init: function() {
+            init();
+        }
+    };
+});
@@ -0,0 +1,272 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Request actions.
+ *
+ * @module     tool_dataprivacy/requestactions
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define([
+    'jquery',
+    'core/ajax',
+    'core/notification',
+    'core/str',
+    'core/modal_factory',
+    'core/modal_events',
+    'core/templates',
+    'tool_dataprivacy/data_request_modal',
+    'tool_dataprivacy/events'],
+function($, Ajax, Notification, Str, ModalFactory, ModalEvents, Templates, ModalDataRequest, DataPrivacyEvents) {
+
+    /**
+     * List of action selectors.
+     *
+     * @type {{APPROVE_REQUEST: string}}
+     * @type {{DENY_REQUEST: string}}
+     * @type {{VIEW_REQUEST: string}}
+     * @type {{MARK_COMPLETE: string}}
+     */
+    var ACTIONS = {
+        APPROVE_REQUEST: '[data-action="approve"]',
+        DENY_REQUEST: '[data-action="deny"]',
+        VIEW_REQUEST: '[data-action="view"]',
+        MARK_COMPLETE: '[data-action="complete"]'
+    };
+
+    /**
+     * RequestActions class.
+     */
+    var RequestActions = function() {
+        this.registerEvents();
+    };
+
+    /**
+     * Register event listeners.
+     */
+    RequestActions.prototype.registerEvents = function() {
+        $(ACTIONS.VIEW_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+
+            // Cancel the request.
+            var params = {
+                'requestid': requestId
+            };
+
+            var request = {
+                methodname: 'tool_dataprivacy_get_data_request',
+                args: params
+            };
+
+            var promises = Ajax.call([request]);
+            $.when(promises[0]).then(function(data) {
+                if (data.result) {
+                    return data.result;
+                }
+                // Fail.
+                Notification.addNotification({
+                    message: data.warnings[0].message,
+                    type: 'error'
+                });
+                return false;
+
+            }).then(function(data) {
+                // Determine the type of modal to show.
+                var modalType = ModalFactory.types.DEFAULT;
+                if (data.approvedeny) {
+                    modalType = ModalDataRequest.TYPE;
+                } else if (data.canmarkcomplete) {
+                    modalType = ModalDataRequest.TYPE_ENQUIRY;
+                }
+                var body = Templates.render('tool_dataprivacy/request_details', data);
+                return ModalFactory.create({
+                    title: data.typename,
+                    body: body,
+                    type: modalType,
+                    large: true
+                });
+
+            }).then(function(modal) {
+                // Handle approve event.
+                modal.getRoot().on(DataPrivacyEvents.approve, function() {
+                    showConfirmation(DataPrivacyEvents.approve, requestId);
+                });
+
+                // Handle deny event.
+                modal.getRoot().on(DataPrivacyEvents.deny, function() {
+                    showConfirmation(DataPrivacyEvents.deny, requestId);
+                });
+
+                // Handle send event.
+                modal.getRoot().on(DataPrivacyEvents.complete, function() {
+                    var params = {
+                        'requestid': requestId
+                    };
+                    handleSave('tool_dataprivacy_mark_complete', params);
+                });
+
+                // Handle hidden event.
+                modal.getRoot().on(ModalEvents.hidden, function() {
+                    // Destroy when hidden.
+                    modal.destroy();
+                });
+
+                // Show the modal!
+                modal.show();
+
+                return;
+
+            }).catch(Notification.exception);
+        });
+
+        $(ACTIONS.APPROVE_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            showConfirmation(DataPrivacyEvents.approve, requestId);
+        });
+
+        $(ACTIONS.DENY_REQUEST).click(function(e) {
+            e.preventDefault();
+
+            var requestId = $(this).data('requestid');
+            showConfirmation(DataPrivacyEvents.deny, requestId);
+        });
+
+        $(ACTIONS.MARK_COMPLETE).click(function(e) {
+            e.preventDefault();
+            showConfirmation(DataPrivacyEvents.complete, $(this).data('requestid'));
+        });
+    };
+
+    /**
+     * Show the confirmation dialogue.
+     *
+     * @param {String} action The action name.
+     * @param {Number} requestId The request ID.
+     */
+    function showConfirmation(action, requestId) {
+        var keys = [];
+        var wsfunction = '';
+        var params = {
+            'requestid': requestId
+        };
+        switch (action) {
+            case DataPrivacyEvents.approve:
+                keys = [
+                    {
+                        key: 'approverequest',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmapproval',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                wsfunction = 'tool_dataprivacy_approve_data_request';
+                break;
+            case DataPrivacyEvents.deny:
+                keys = [
+                    {
+                        key: 'denyrequest',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmdenial',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                wsfunction = 'tool_dataprivacy_deny_data_request';
+                break;
+            case DataPrivacyEvents.complete:
+                keys = [
+                    {
+                        key: 'markcomplete',
+                        component: 'tool_dataprivacy'
+                    },
+                    {
+                        key: 'confirmcompletion',
+                        component: 'tool_dataprivacy'
+                    }
+                ];
+                wsfunction = 'tool_dataprivacy_mark_complete';
+                break;
+        }
+
+        var modalTitle = '';
+        Str.get_strings(keys).then(function(langStrings) {
+            modalTitle = langStrings[0];
+            var confirmMessage = langStrings[1];
+            return ModalFactory.create({
+                title: modalTitle,
+                body: confirmMessage,
+                type: ModalFactory.types.SAVE_CANCEL
+            });
+        }).then(function(modal) {
+            modal.setSaveButtonText(modalTitle);
+
+            // Handle save event.
+            modal.getRoot().on(ModalEvents.save, function() {
+                handleSave(wsfunction, params);
+            });
+
+            // Handle hidden event.
+            modal.getRoot().on(ModalEvents.hidden, function() {
+                // Destroy when hidden.
+                modal.destroy();
+            });
+
+            modal.show();
+
+            return;
+
+        }).catch(Notification.exception);
+    }
+
+    /**
+     * Calls a web service function and reloads the page on success and shows a notification.
+     * Displays an error notification, otherwise.
+     *
+     * @param {String} wsfunction The web service function to call.
+     * @param {Object} params The parameters for the web service functoon.
+     */
+    function handleSave(wsfunction, params) {
+        // Confirm the request.
+        var request = {
+            methodname: wsfunction,
+            args: params
+        };
+
+        Ajax.call([request])[0].done(function(data) {
+            if (data.result) {
+                // On success, reload the page so that the data request table will be updated.
+                // TODO: Probably in the future, better to reload the table or the target data request via AJAX.
+                window.location.reload();
+            } else {
+                // Add the notification.
+                Notification.addNotification({
+                    message: data.warnings[0].message,
+                    type: 'error'
+                });
+            }
+        }).fail(Notification.exception);
+    }
+
+    return RequestActions;
+});
@@ -0,0 +1,41 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage categories.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+
+require_login(null, false);
+
+$url = new moodle_url("/admin/tool/dataprivacy/categories.php");
+$title = get_string('editcategories', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+
+$categories = \tool_dataprivacy\api::get_categories();
+$renderable = new \tool_dataprivacy\output\categories($categories);
+
+echo $output->render($renderable);
+echo $output->footer();
@@ -0,0 +1,91 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing data categories from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Class for loading/storing data categories from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_category';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'name' => array(
+                'type' => PARAM_TEXT,
+                'description' => 'The category name.',
+            ),
+            'description' => array(
+                'type' => PARAM_RAW,
+                'description' => 'The category description.',
+                'null' => NULL_ALLOWED,
+                'default' => '',
+            ),
+            'descriptionformat' => array(
+                'choices' => array(FORMAT_HTML, FORMAT_MOODLE, FORMAT_PLAIN, FORMAT_MARKDOWN),
+                'type' => PARAM_INT,
+                'default' => FORMAT_HTML
+            ),
+        );
+    }
+
+    /**
+     * Is this category used?.
+     *
+     * @return null
+     */
+    public function is_used() {
+
+        if (\tool_dataprivacy\contextlevel::is_category_used($this->get('id')) ||
+                \tool_dataprivacy\context_instance::is_category_used($this->get('id'))) {
+            return true;
+        }
+
+        $pluginconfig = get_config('tool_dataprivacy');
+        $levels = \context_helper::get_all_levels();
+        foreach ($levels as $level => $classname) {
+
+            list($unused, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+            if (!empty($pluginconfig->{$categoryvar}) && $pluginconfig->{$categoryvar} == $this->get('id')) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}
@@ -0,0 +1,116 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing context instances data from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class for loading/storing context instances data from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxinstance';
+
+    /**
+     * Not set value.
+     */
+    const NOTSET = 0;
+
+    /**
+     * Inherit value.
+     */
+    const INHERIT = -1;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'contextid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The context id.',
+            ),
+            'purposeid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The purpose id.',
+                'null' => NULL_ALLOWED,
+            ),
+            'categoryid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The category id.',
+                'null' => NULL_ALLOWED,
+            ),
+        );
+    }
+
+    /**
+     * Returns an instance by contextid.
+     *
+     * @param mixed $contextid
+     * @param mixed $exception
+     * @return null
+     */
+    public static function get_record_by_contextid($contextid, $exception = true) {
+        global $DB;
+
+        if (!$record = $DB->get_record(self::TABLE, array('contextid' => $contextid))) {
+            if (!$exception) {
+                return false;
+            } else {
+                throw new \dml_missing_record_exception(self::TABLE);
+            }
+        }
+
+        return new static(0, $record);
+    }
+
+    /**
+     * Is the provided purpose used by any context instance?
+     *
+     * @param int $purposeid
+     * @return bool
+     */
+    public static function is_purpose_used($purposeid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('purposeid' => $purposeid));
+    }
+
+    /**
+     * Is the provided category used by any context instance?
+     *
+     * @param int $categoryid
+     * @return bool
+     */
+    public static function is_category_used($categoryid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('categoryid' => $categoryid));
+    }
+}
@@ -0,0 +1,140 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing context level data from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class for loading/storing context level data from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlevel extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxlevel';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'contextlevel' => array(
+                'type' => PARAM_INT,
+                'description' => 'The context level.',
+            ),
+            'purposeid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The purpose id.',
+            ),
+            'categoryid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The category id.',
+            ),
+        );
+    }
+
+    /**
+     * Returns an instance by contextlevel.
+     *
+     * @param mixed $contextlevel
+     * @param mixed $exception
+     * @return null
+     */
+    public static function get_record_by_contextlevel($contextlevel, $exception = true) {
+        global $DB;
+
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        if ($data = $cache->get($contextlevel)) {
+            return new static(0, $data);
+        }
+
+        if (!$record = $DB->get_record(self::TABLE, array('contextlevel' => $contextlevel))) {
+            if (!$exception) {
+                return false;
+            } else {
+                throw new \dml_missing_record_exception(self::TABLE);
+            }
+        }
+
+        return new static(0, $record);
+    }
+
+    /**
+     * Is the provided purpose used by any contextlevel?
+     *
+     * @param int $purposeid
+     * @return bool
+     */
+    public static function is_purpose_used($purposeid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('purposeid' => $purposeid));
+    }
+
+    /**
+     * Is the provided category used by any contextlevel?
+     *
+     * @param int $categoryid
+     * @return bool
+     */
+    public static function is_category_used($categoryid) {
+        global $DB;
+        return $DB->record_exists(self::TABLE, array('categoryid' => $categoryid));
+    }
+
+    /**
+     * Adds the new record to the cache.
+     *
+     * @return null
+     */
+    protected function after_create() {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->set($this->get('contextlevel'), $this->to_record());
+    }
+
+    /**
+     * Updates the cache record.
+     *
+     * @param bool $result
+     * @return null
+     */
+    protected function after_update($result) {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->set($this->get('contextlevel'), $this->to_record());
+    }
+
+    /**
+     * Removes unnecessary stuff from db.
+     *
+     * @return null
+     */
+    protected function before_delete() {
+        $cache = \cache::make('tool_dataprivacy', 'contextlevel');
+        $cache->delete($this->get('contextlevel'));
+    }
+}
@@ -0,0 +1,64 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the contextlist persistent.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+use core\persistent;
+
+/**
+ * The contextlist persistent.
+ *
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlist extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_contextlist';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'component' => [
+                'type' => PARAM_TEXT
+            ]
+        ];
+    }
+
+    /**
+     * Create a new contextlist persistent from an instance of \core_privacy\local\request\contextlist.
+     *
+     * @param \core_privacy\local\request\contextlist $contextlist the core privacy contextlist.
+     * @return contextlist a contextlist persistent.
+     */
+    public static function from_contextlist(\core_privacy\local\request\contextlist $contextlist) {
+        $contextlistpersistent = new contextlist();
+        return $contextlistpersistent->set('component', $contextlist->get_component());
+    }
+}
@@ -0,0 +1,74 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the contextlist_context persistent.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+use core\persistent;
+
+/**
+ * The contextlist_context persistent.
+ *
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlist_context extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_ctxlst_ctx';
+
+    /** This context is pending approval. */
+    const STATUS_PENDING = 0;
+
+    /** This context has been approved. */
+    const STATUS_APPROVED = 1;
+
+    /** This context has been rejected. */
+    const STATUS_REJECTED = 2;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'contextid' => [
+                'type' => PARAM_INT
+            ],
+            'contextlistid' => [
+                'type' => PARAM_INT
+            ],
+            'status' => [
+                'choices' => [
+                    self::STATUS_PENDING,
+                    self::STATUS_APPROVED,
+                    self::STATUS_REJECTED,
+                ],
+                'default' => self::STATUS_PENDING,
+                'type' => PARAM_INT
+            ]
+        ];
+    }
+}
@@ -0,0 +1,356 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Data registry business logic methods. Mostly internal stuff.
+ *
+ * All methods should be considered part of the internal tool_dataprivacy API
+ * unless something different is specified.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+
+use coding_exception;
+use tool_dataprivacy\purpose;
+use tool_dataprivacy\category;
+use tool_dataprivacy\contextlevel;
+use tool_dataprivacy\context_instance;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/coursecatlib.php');
+
+/**
+ * Data registry business logic methods. Mostly internal stuff.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry {
+
+    /**
+     * @var array Inheritance between context levels.
+     */
+    private static $contextlevelinheritance = [
+        CONTEXT_USER => [CONTEXT_SYSTEM],
+        CONTEXT_COURSECAT => [CONTEXT_SYSTEM],
+        CONTEXT_COURSE => [CONTEXT_COURSECAT, CONTEXT_SYSTEM],
+        CONTEXT_MODULE => [CONTEXT_COURSE, CONTEXT_COURSECAT, CONTEXT_SYSTEM],
+        CONTEXT_BLOCK => [CONTEXT_COURSE, CONTEXT_COURSECAT, CONTEXT_SYSTEM],
+    ];
+
+    /**
+     * Returns purpose and category var names from a context class name
+     *
+     * @param string $classname
+     * @return string[]
+     */
+    public static function var_names_from_context($classname) {
+        return [
+            $classname . '_purpose',
+            $classname . '_category',
+        ];
+    }
+
+    /**
+     * Returns the default purpose id and category id for the provided context level.
+     *
+     * The caller code is responsible of checking that $contextlevel is an integer.
+     *
+     * @param int $contextlevel
+     * @return int|false[]
+     */
+    public static function get_defaults($contextlevel) {
+
+        $classname = \context_helper::get_class_for_level($contextlevel);
+        list($purposevar, $categoryvar) = self::var_names_from_context($classname);
+
+        $purposeid = get_config('tool_dataprivacy', $purposevar);
+        $categoryid = get_config('tool_dataprivacy', $categoryvar);
+
+        if (empty($purposeid)) {
+            $purposeid = false;
+        }
+        if (empty($categoryid)) {
+            $categoryid = false;
+        }
+
+        return [$purposeid, $categoryid];
+    }
+
+    /**
+     * Are data registry defaults set?
+     *
+     * At least the system defaults need to be set.
+     *
+     * @return bool
+     */
+    public static function defaults_set() {
+        list($purposeid, $categoryid) = self::get_defaults(CONTEXT_SYSTEM);
+        if (empty($purposeid) || empty($categoryid)) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Returns all site categories that are visible to the current user.
+     *
+     * @return \coursecat[]
+     */
+    public static function get_site_categories() {
+        global $DB;
+
+        if (method_exists('\coursecat', 'get_all')) {
+            $categories = \coursecat::get_all(['returnhidden' => true]);
+        } else {
+            // Fallback (to be removed once this gets integrated into master).
+            $ids = $DB->get_fieldset_select('course_categories', 'id', '');
+            $categories = \coursecat::get_many($ids);
+        }
+
+        foreach ($categories as $key => $category) {
+            if (!$category->is_uservisible()) {
+                unset($categories[$key]);
+            }
+        }
+        return $categories;
+    }
+
+    /**
+     * Returns the roles assigned to the provided level.
+     *
+     * Important to note that it returns course-level assigned roles
+     * if the provided context level is below course.
+     *
+     * @param \context $context
+     * @return array
+     */
+    public static function get_subject_scope(\context $context) {
+
+        if ($contextcourse = $context->get_course_context(false)) {
+            // Below course level we look at module or block level roles + course-assigned roles.
+            $courseroles = get_roles_with_assignment_on_context($contextcourse);
+            $roles = $courseroles + get_roles_with_assignment_on_context($context);
+        } else {
+            // We list category + system for others (we don't work with user instances so no need to work about them).
+            $roles = get_roles_used_in_context($context);
+        }
+
+        return array_map(function($role) {
+            if ($role->name) {
+                return $role->name;
+            } else {
+                return $role->shortname;
+            }
+        }, $roles);
+    }
+
+    /**
+     * Returns the effective value given a context instance
+     *
+     * @param \context $context
+     * @param string $element 'category' or 'purpose'
+     * @param int|false $forcedvalue Use this value as if this was this context instance value.
+     * @return persistent|false It return a 'purpose' instance or a 'category' instance, depending on $element
+     */
+    public static function get_effective_context_value(\context $context, $element, $forcedvalue=false) {
+
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('Only \'purpose\' and \'category\' are supported.');
+        }
+        $fieldname = $element . 'id';
+
+        if ($forcedvalue === false) {
+            $instance = context_instance::get_record_by_contextid($context->id, false);
+
+            if (!$instance) {
+                // If the instance does not have a value defaults to not set, so we grab the context level default as its value.
+                $instancevalue = context_instance::NOTSET;
+            } else {
+                $instancevalue = $instance->get($fieldname);
+            }
+        } else {
+            $instancevalue = $forcedvalue;
+        }
+
+        // Not set.
+        if ($instancevalue == context_instance::NOTSET) {
+
+            // The effective value varies depending on the context level.
+            if ($context->contextlevel == CONTEXT_USER) {
+                // Use the context level value as we don't allow people to set specific instances values.
+                return self::get_effective_contextlevel_value($context->contextlevel, $element);
+            } else {
+                // Use the default context level value.
+                list($purposeid, $categoryid) = self::get_effective_default_contextlevel_purpose_and_category(
+                    $context->contextlevel
+                );
+                return self::get_element_instance($element, $$fieldname);
+            }
+        }
+
+        // Specific value for this context instance.
+        if ($instancevalue != context_instance::INHERIT) {
+            return self::get_element_instance($element, $instancevalue);
+        }
+
+        // This context is using inherited so let's return the parent effective value.
+        $parentcontext = $context->get_parent_context();
+        if (!$parentcontext) {
+            return false;
+        }
+
+        // The forced value should not be transmitted to parent contexts.
+        return self::get_effective_context_value($parentcontext, $element);
+    }
+
+    /**
+     * Returns the effective value for a context level.
+     *
+     * Note that this is different from the effective default context level
+     * (see get_effective_default_contextlevel_purpose_and_category) as this is returning
+     * the value set in the data registry, not in the defaults page.
+     *
+     * @param int $contextlevel
+     * @param string $element 'category' or 'purpose'
+     * @param int $forcedvalue Use this value as if this was this context level purpose.
+     * @return \tool_dataprivacy\purpose|false
+     */
+    public static function get_effective_contextlevel_value($contextlevel, $element, $forcedvalue = false) {
+
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('Only \'purpose\' and \'category\' are supported.');
+        }
+        $fieldname = $element . 'id';
+
+        if ($contextlevel != CONTEXT_SYSTEM && $contextlevel != CONTEXT_USER) {
+            throw new \coding_exception('Only context_system and context_user values can be retrieved, no other context levels ' .
+                'have a purpose or a category.');
+        }
+
+        if ($forcedvalue === false) {
+            $instance = contextlevel::get_record_by_contextlevel($contextlevel, false);
+            if (!$instance) {
+                // If the context level does not have a value defaults to not set, so we grab the context level default as
+                // its value.
+                $instancevalue = context_instance::NOTSET;
+            } else {
+                $instancevalue = $instance->get($fieldname);
+            }
+        } else {
+            $instancevalue = $forcedvalue;
+        }
+
+        // Not set -> Use the default context level value.
+        if ($instancevalue == context_instance::NOTSET) {
+            list($purposeid, $categoryid) = self::get_effective_default_contextlevel_purpose_and_category($contextlevel);
+            return self::get_element_instance($element, $$fieldname);
+        }
+
+        // Specific value for this context instance.
+        if ($instancevalue != context_instance::INHERIT) {
+            return self::get_element_instance($element, $instancevalue);
+        }
+
+        if ($contextlevel == CONTEXT_SYSTEM) {
+            throw new coding_exception('Something went wrong, system defaults should be set and we should already have a value.');
+        }
+
+        // If we reach this point is that we are inheriting so get the parent context level and repeat.
+        $parentcontextlevel = reset(self::$contextlevelinheritance[$contextlevel]);
+
+        // Forced value are intentionally not passed as the force value should only affect the immediate context level.
+        return self::get_effective_contextlevel_value($parentcontextlevel, $element);
+    }
+
+    /**
+     * Returns the effective default purpose and category for a context level.
+     *
+     * @param int $contextlevel
+     * @param int $forcedpurposevalue Use this value as if this was this context level purpose.
+     * @param int $forcedcategoryvalue Use this value as if this was this context level category.
+     * @return int[]
+     */
+    public static function get_effective_default_contextlevel_purpose_and_category($contextlevel, $forcedpurposevalue = false,
+                                                                                   $forcedcategoryvalue = false) {
+
+        list($purposeid, $categoryid) = self::get_defaults($contextlevel);
+
+        // Honour forced values.
+        if ($forcedpurposevalue) {
+            $purposeid = $forcedpurposevalue;
+        }
+        if ($forcedcategoryvalue) {
+            $categoryid = $forcedcategoryvalue;
+        }
+
+        // Not set == INHERIT for defaults.
+        if ($purposeid == context_instance::INHERIT || $purposeid == context_instance::NOTSET) {
+            $purposeid = false;
+        }
+        if ($categoryid == context_instance::INHERIT || $categoryid == context_instance::NOTSET) {
+            $categoryid = false;
+        }
+
+        if ($contextlevel != CONTEXT_SYSTEM && ($purposeid === false || $categoryid === false)) {
+            foreach (self::$contextlevelinheritance[$contextlevel] as $parent) {
+
+                list($parentpurposeid, $parentcategoryid) = self::get_defaults($parent);
+                // Not set == INHERIT for defaults.
+                if ($parentpurposeid == context_instance::INHERIT || $parentpurposeid == context_instance::NOTSET) {
+                    $parentpurposeid = false;
+                }
+                if ($parentcategoryid == context_instance::INHERIT || $parentcategoryid == context_instance::NOTSET) {
+                    $parentcategoryid = false;
+                }
+
+                if ($purposeid === false && $parentpurposeid) {
+                    $purposeid = $parentpurposeid;
+                }
+
+                if ($categoryid === false && $parentcategoryid) {
+                    $categoryid = $parentcategoryid;
+                }
+            }
+        }
+
+        // They may still be false, but we return anyway.
+        return [$purposeid, $categoryid];
+    }
+
+    /**
+     * Returns an instance of the provided element.
+     *
+     * @throws \coding_exception
+     * @param string $element The element name 'purpose' or 'category'
+     * @param int $id The element id
+     * @return \core\persistent
+     */
+    private static function get_element_instance($element, $id) {
+
+        if ($element !== 'purpose' && $element !== 'category') {
+            throw new coding_exception('No other elements than purpose and category are allowed');
+        }
+
+        $classname = '\tool_dataprivacy\\' . $element;
+        return new $classname($id);
+    }
+}
@@ -0,0 +1,213 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing data requests from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+use core\persistent;
+
+/**
+ * Class for loading/storing competencies from the DB.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_request extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_request';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'type' => [
+                'choices' => [
+                    api::DATAREQUEST_TYPE_EXPORT,
+                    api::DATAREQUEST_TYPE_DELETE,
+                    api::DATAREQUEST_TYPE_OTHERS,
+                ],
+                'type' => PARAM_INT
+            ],
+            'comments' => [
+                'type' => PARAM_TEXT,
+                'default' => ''
+            ],
+            'commentsformat' => [
+                'choices' => [
+                    FORMAT_HTML,
+                    FORMAT_MOODLE,
+                    FORMAT_PLAIN,
+                    FORMAT_MARKDOWN
+                ],
+                'type' => PARAM_INT,
+                'default' => FORMAT_PLAIN
+            ],
+            'userid' => [
+                'default' => 0,
+                'type' => PARAM_INT
+            ],
+            'requestedby' => [
+                'default' => 0,
+                'type' => PARAM_INT
+            ],
+            'status' => [
+                'default' => api::DATAREQUEST_STATUS_PENDING,
+                'choices' => [
+                    api::DATAREQUEST_STATUS_PENDING,
+                    api::DATAREQUEST_STATUS_PREPROCESSING,
+                    api::DATAREQUEST_STATUS_AWAITING_APPROVAL,
+                    api::DATAREQUEST_STATUS_APPROVED,
+                    api::DATAREQUEST_STATUS_PROCESSING,
+                    api::DATAREQUEST_STATUS_COMPLETE,
+                    api::DATAREQUEST_STATUS_CANCELLED,
+                    api::DATAREQUEST_STATUS_REJECTED,
+                    api::DATAREQUEST_STATUS_DOWNLOAD_READY,
+                    api::DATAREQUEST_STATUS_EXPIRED,
+                    api::DATAREQUEST_STATUS_DELETED,
+                ],
+                'type' => PARAM_INT
+            ],
+            'dpo' => [
+                'default' => 0,
+                'type' => PARAM_INT,
+                'null' => NULL_ALLOWED
+            ],
+            'dpocomment' => [
+                'default' => '',
+                'type' => PARAM_TEXT,
+                'null' => NULL_ALLOWED
+            ],
+            'dpocommentformat' => [
+                'choices' => [
+                    FORMAT_HTML,
+                    FORMAT_MOODLE,
+                    FORMAT_PLAIN,
+                    FORMAT_MARKDOWN
+                ],
+                'type' => PARAM_INT,
+                'default' => FORMAT_PLAIN
+            ],
+        ];
+    }
+
+    /**
+     * Determines whether a completed data export request has expired.
+     * The response will be valid regardless of the expiry scheduled task having run.
+     *
+     * @param data_request $request the data request object whose expiry will be checked.
+     * @return bool true if the request has expired.
+     */
+    public static function is_expired(data_request $request) {
+        $result = false;
+
+        // Only export requests expire.
+        if ($request->get('type') == api::DATAREQUEST_TYPE_EXPORT) {
+            switch ($request->get('status')) {
+                // Expired requests are obviously expired.
+                case api::DATAREQUEST_STATUS_EXPIRED:
+                    $result = true;
+                    break;
+                // Complete requests are expired if the expiry time has elapsed.
+                case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                    $expiryseconds = get_config('tool_dataprivacy', 'privacyrequestexpiry');
+                    if ($expiryseconds > 0 && time() >= ($request->get('timemodified') + $expiryseconds)) {
+                        $result = true;
+                    }
+                    break;
+            }
+        }
+
+        return $result;
+    }
+
+
+
+    /**
+     * Fetch completed data requests which are due to expire.
+     *
+     * @param int $userid Optional user ID to filter by.
+     *
+     * @return array Details of completed requests which are due to expire.
+     */
+    public static function get_expired_requests($userid = 0) {
+        global $DB;
+
+        $expiryseconds = get_config('tool_dataprivacy', 'privacyrequestexpiry');
+        $expirytime = strtotime("-{$expiryseconds} second");
+        $table = self::TABLE;
+        $sqlwhere = 'type = :export_type AND status = :completestatus AND timemodified <= :expirytime';
+        $params = array(
+            'export_type' => api::DATAREQUEST_TYPE_EXPORT,
+            'completestatus' => api::DATAREQUEST_STATUS_DOWNLOAD_READY,
+            'expirytime' => $expirytime,
+        );
+        $sort = 'id';
+        $fields = 'id, userid';
+
+        // Filter by user ID if specified.
+        if ($userid > 0) {
+            $sqlwhere .= ' AND (userid = :userid OR requestedby = :requestedby)';
+            $params['userid'] = $userid;
+            $params['requestedby'] = $userid;
+        }
+
+        return $DB->get_records_select_menu($table, $sqlwhere, $params, $sort, $fields, 0, 2000);
+    }
+
+    /**
+     * Expire a given set of data requests.
+     * Update request status and delete the files.
+     *
+     * @param array $expiredrequests [requestid => userid]
+     *
+     * @return void
+     */
+    public static function expire($expiredrequests) {
+        global $DB;
+
+        $ids = array_keys($expiredrequests);
+
+        if (count($ids) > 0) {
+            list($insql, $inparams) = $DB->get_in_or_equal($ids);
+            $initialparams = array(api::DATAREQUEST_STATUS_EXPIRED, time());
+            $params = array_merge($initialparams, $inparams);
+
+            $update = "UPDATE {" . self::TABLE . "}
+                          SET status = ?, timemodified = ?
+                        WHERE id $insql";
+
+            if ($DB->execute($update, $params)) {
+                $fs = get_file_storage();
+
+                foreach ($expiredrequests as $id => $userid) {
+                    $usercontext = \context_user::instance($userid);
+                    $fs->delete_area_files($usercontext->id, 'tool_dataprivacy', 'export', $id);
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,162 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class that represents an expired context.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+use dml_exception;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class that represents an expired context.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_context extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_ctxexpired';
+
+    /**
+     * Expired contexts with no delete action scheduled.
+     */
+    const STATUS_EXPIRED = 0;
+
+    /**
+     * Expired contexts approved for deletion.
+     */
+    const STATUS_APPROVED = 1;
+
+    /**
+     * Already processed expired contexts.
+     */
+    const STATUS_CLEANED = 2;
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'contextid' => array(
+                'type' => PARAM_INT,
+                'description' => 'The context id.',
+            ),
+            'status' => array(
+                'choices' => [
+                    self::STATUS_EXPIRED,
+                    self::STATUS_APPROVED,
+                    self::STATUS_CLEANED,
+                ],
+                'type' => PARAM_INT,
+                'description' => 'The deletion status of the context.',
+            ),
+        );
+    }
+
+    /**
+     * Returns expired_contexts instances that match the provided level and status.
+     *
+     * @param int $contextlevel The context level filter criterion.
+     * @param bool $status The expired context record's status.
+     * @param string $sort The sort column. Must match the column name in {tool_dataprivacy_ctxexpired} table
+     * @param int $offset The query offset.
+     * @param int $limit The query limit.
+     * @return expired_context[]
+     * @throws dml_exception
+     */
+    public static function get_records_by_contextlevel($contextlevel = null, $status = false, $sort = 'timecreated',
+                                                       $offset = 0, $limit = 0) {
+        global $DB;
+
+        $sql = "SELECT expiredctx.*
+                  FROM {" . self::TABLE . "} expiredctx
+                  JOIN {context} ctx
+                    ON ctx.id = expiredctx.contextid";
+        $params = [];
+        $conditions = [];
+
+        if (!empty($contextlevel)) {
+            $conditions[] = "ctx.contextlevel = :contextlevel";
+            $params['contextlevel'] = intval($contextlevel);
+        }
+
+        if ($status !== false) {
+            $conditions[] = "expiredctx.status = :status";
+            $params['status'] = intval($status);
+        }
+
+        if (!empty($conditions)) {
+            $sql .= ' WHERE ' . implode(' AND ', $conditions);
+        }
+        $sql .= " ORDER BY expiredctx.{$sort}";
+
+        $records = $DB->get_records_sql($sql, $params, $offset, $limit);
+
+        // We return class instances.
+        $instances = array();
+        foreach ($records as $key => $record) {
+            $instances[$key] = new static(0, $record);
+        }
+
+        return $instances;
+    }
+
+    /**
+     * Returns the number of expired_contexts instances that match the provided level and status.
+     *
+     * @param int $contextlevel
+     * @param bool $status
+     * @return int
+     * @throws dml_exception
+     */
+    public static function get_record_count_by_contextlevel($contextlevel = null, $status = false) {
+        global $DB;
+
+        $sql = "SELECT COUNT(1)
+                  FROM {" . self::TABLE . "} expiredctx
+                  JOIN {context} ctx
+                    ON ctx.id = expiredctx.contextid";
+
+        $conditions = [];
+        $params = [];
+
+        if (!empty($contextlevel)) {
+            $conditions[] = "ctx.contextlevel = :contextlevel";
+            $params['contextlevel'] = intval($contextlevel);
+        }
+
+        if ($status !== false) {
+            $sql .= " AND expiredctx.status = :status";
+            $params['status'] = intval($status);
+        }
+        if (!empty($conditions)) {
+            $sql .= ' WHERE ' . implode(' AND ', $conditions);
+        }
+
+        return $DB->count_records_sql($sql, $params);
+    }
+}
@@ -0,0 +1,154 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Expired contexts manager.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use core_privacy\manager;
+use tool_dataprivacy\expired_context;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Expired contexts manager.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class expired_contexts_manager {
+
+    /**
+     * Number of deleted contexts for each scheduled task run.
+     */
+    const DELETE_LIMIT = 200;
+
+    /**
+     * Returns the list of expired context instances.
+     *
+     * @return \stdClass[]
+     */
+    abstract protected function get_expired_contexts();
+
+    /**
+     * Specify with context levels this expired contexts manager is deleting.
+     *
+     * @return int[]
+     */
+    abstract protected function get_context_levels();
+
+    /**
+     * Flag expired contexts as expired.
+     *
+     * @return int The number of contexts flagged as expired.
+     */
+    public function flag_expired() {
+
+        if (!$this->check_requirements()) {
+            return 0;
+        }
+
+        $contexts = $this->get_expired_contexts();
+        foreach ($contexts as $context) {
+            api::create_expired_context($context->id);
+        }
+
+        return count($contexts);
+    }
+
+    /**
+     * Deletes the expired contexts.
+     *
+     * @return int The number of deleted contexts.
+     */
+    public function delete() {
+
+        $numprocessed = 0;
+
+        if (!$this->check_requirements()) {
+            return $numprocessed;
+        }
+
+        $privacymanager = new manager();
+        $privacymanager->set_observer(new \tool_dataprivacy\manager_observer());
+
+        foreach ($this->get_context_levels() as $level) {
+
+            $expiredcontexts = expired_context::get_records_by_contextlevel($level, expired_context::STATUS_APPROVED);
+
+            foreach ($expiredcontexts as $expiredctx) {
+
+                if (!$this->delete_expired_context($privacymanager, $expiredctx)) {
+                    continue;
+                }
+
+                $numprocessed += 1;
+                if ($numprocessed == self::DELETE_LIMIT) {
+                    // Close the recordset.
+                    $expiredcontexts->close();
+                    break 2;
+                }
+            }
+        }
+
+        return $numprocessed;
+    }
+
+    /**
+     * Deletes user data from the provided context.
+     *
+     * @param manager $privacymanager
+     * @param expired_context $expiredctx
+     * @return \context|false
+     */
+    protected function delete_expired_context(manager $privacymanager, expired_context $expiredctx) {
+
+        $context = \context::instance_by_id($expiredctx->get('contextid'), IGNORE_MISSING);
+        if (!$context) {
+            api::delete_expired_context($expiredctx->get('contextid'));
+            return false;
+        }
+
+        if (!PHPUNIT_TEST) {
+            mtrace('Deleting context ' . $context->id . ' - ' .
+                shorten_text($context->get_context_name(true, true)));
+        }
+
+        $privacymanager->delete_data_for_all_users_in_context($context);
+        api::set_expired_context_status($expiredctx, expired_context::STATUS_CLEANED);
+
+        return $context;
+    }
+
+    /**
+     * Check that the requirements to start deleting contexts are satisified.
+     *
+     * @return bool
+     */
+    protected function check_requirements() {
+        api::check_can_manage_data_registry(\context_system::instance()->id);
+
+        if (!data_registry::defaults_set()) {
+            return false;
+        }
+        return true;
+    }
+}
@@ -0,0 +1,135 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Expired contexts manager for CONTEXT_COURSE, CONTEXT_MODULE and CONTEXT_BLOCK.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use tool_dataprivacy\purpose;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Expired contexts manager for CONTEXT_COURSE, CONTEXT_MODULE and CONTEXT_BLOCK.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_course_related_contexts extends \tool_dataprivacy\expired_contexts_manager {
+
+    /**
+     * Course-related context levels.
+     *
+     * @return int[]
+     */
+    protected function get_context_levels() {
+        return [CONTEXT_MODULE, CONTEXT_BLOCK, CONTEXT_COURSE];
+    }
+
+    /**
+     * Returns a recordset with user context instances that are possibly expired (to be confirmed by get_recordset_callback).
+     *
+     * @return \stdClass[]
+     */
+    protected function get_expired_contexts() {
+        global $DB;
+
+        // Including context info + course end date + purposeid (this last one only if defined).
+        $fields = 'ctx.id AS id, ctxcourse.enddate AS courseenddate, dpctx.purposeid AS purposeid, ' .
+            \context_helper::get_preload_record_columns_sql('ctx');
+
+        // We want all contexts at course-dependant levels.
+        $parentpath = $DB->sql_concat('ctxcourse.path', "'/%'");
+
+        // This SQL query returns all course-dependant contexts (including the course context)
+        // which course end date already passed.
+        $sql = "SELECT $fields
+                  FROM {context} ctx
+                  JOIN (
+                        SELECT c.enddate, subctx.path
+                          FROM {context} subctx
+                          JOIN {course} c
+                            ON subctx.contextlevel = ? AND subctx.instanceid = c.id
+                         WHERE c.enddate < ? AND c.enddate > 0
+                       ) ctxcourse
+                    ON ctx.path LIKE {$parentpath} OR ctx.path = ctxcourse.path
+             LEFT JOIN {tool_dataprivacy_ctxinstance} dpctx
+                    ON dpctx.contextid = ctx.id
+             LEFT JOIN {tool_dataprivacy_ctxexpired} expiredctx
+                    ON ctx.id = expiredctx.contextid
+                 WHERE expiredctx.id IS NULL
+              ORDER BY ctx.contextlevel DESC, ctx.path";
+        $possiblyexpired = $DB->get_recordset_sql($sql, [CONTEXT_COURSE, time()]);
+
+        $expiredcontexts = [];
+        $excludedcontextids = [];
+        foreach ($possiblyexpired as $record) {
+
+            \context_helper::preload_from_record($record);
+
+            // No strict checking as the context may already be deleted (e.g. we just deleted a course,
+            // module contexts below it will not exist).
+            $context = \context::instance_by_id($record->id, false);
+            if (!$context) {
+                continue;
+            }
+
+            // We pass the value we just got from SQL so get_effective_context_purpose don't need to query
+            // the db again to retrieve it. If there is no tool_dataprovider_ctxinstance record
+            // $record->purposeid will be null which is ok as it would force get_effective_context_purpose
+            // to return the default purpose for the context context level (no db queries involved).
+            $purposevalue = $record->purposeid !== null ? $record->purposeid : context_instance::NOTSET;
+
+            // It should be cheap as system purposes and context level purposes will be retrieved from a cache most of the time.
+            $purpose = api::get_effective_context_purpose($context, $purposevalue);
+
+            $dt = new \DateTime();
+            $dt->setTimestamp($record->courseenddate);
+            $di = new \DateInterval($purpose->get('retentionperiod'));
+            $dt->add($di);
+
+            if (time() < $dt->getTimestamp()) {
+                // Exclude this context ID as it has not reached the retention period yet.
+                $excludedcontextids[] = $context->id;
+                continue;
+            }
+
+            // Check if this context has children that have not yet expired.
+            $hasunexpiredchildren = false;
+            $children = $context->get_child_contexts();
+            foreach ($children as $child) {
+                if (in_array($child->id, $excludedcontextids)) {
+                    $hasunexpiredchildren = true;
+                    break;
+                }
+            }
+            if ($hasunexpiredchildren) {
+                // Exclude this context ID as it has children that have not yet expired.
+                $excludedcontextids[] = $context->id;
+                continue;
+            }
+
+            $expiredcontexts[$context->id] = $context;
+        }
+
+        return $expiredcontexts;
+    }
+}
@@ -0,0 +1,150 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Expired contexts manager for CONTEXT_USER.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use core_privacy\manager;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Expired contexts manager for CONTEXT_USER.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_user_contexts extends \tool_dataprivacy\expired_contexts_manager {
+
+    /**
+     * Only user level.
+     *
+     * @return int[]
+     */
+    protected function get_context_levels() {
+        return [CONTEXT_USER];
+    }
+
+    /**
+     * Returns the user context instances that are expired.
+     *
+     * @return \stdClass[]
+     */
+    protected function get_expired_contexts() {
+        global $DB;
+
+        // Including context info + last login timestamp.
+        $fields = 'ctx.id AS id, ' . \context_helper::get_preload_record_columns_sql('ctx');
+
+        $purpose = api::get_effective_contextlevel_purpose(CONTEXT_USER);
+
+        // Calculate what is considered expired according to the context level effective purpose (= now + retention period).
+        $expiredtime = new \DateTime();
+        $retention = new \DateInterval($purpose->get('retentionperiod'));
+        $expiredtime->sub($retention);
+
+        $sql = "SELECT $fields FROM {context} ctx
+                  JOIN {user} u ON ctx.contextlevel = ? AND ctx.instanceid = u.id
+                  LEFT JOIN {tool_dataprivacy_ctxexpired} expiredctx ON ctx.id = expiredctx.contextid
+                 WHERE u.lastaccess <= ? AND u.lastaccess > 0 AND expiredctx.id IS NULL
+                ORDER BY ctx.path, ctx.contextlevel ASC";
+        $possiblyexpired = $DB->get_recordset_sql($sql, [CONTEXT_USER, $expiredtime->getTimestamp()]);
+
+        $expiredcontexts = [];
+        foreach ($possiblyexpired as $record) {
+
+            \context_helper::preload_from_record($record);
+
+            // No strict checking as the context may already be deleted (e.g. we just deleted a course,
+            // module contexts below it will not exist).
+            $context = \context::instance_by_id($record->id, false);
+            if (!$context) {
+                continue;
+            }
+
+            if (is_siteadmin($context->instanceid)) {
+                continue;
+            }
+
+            $courses = enrol_get_users_courses($context->instanceid, false, ['enddate']);
+            foreach ($courses as $course) {
+                if (!$course->enddate) {
+                    // We can not know it what is going on here, so we prefer to be conservative.
+                    continue 2;
+                }
+
+                if ($course->enddate >= time()) {
+                    // Future or ongoing course.
+                    continue 2;
+                }
+            }
+
+            $expiredcontexts[$context->id] = $context;
+        }
+
+        return $expiredcontexts;
+    }
+
+    /**
+     * Deletes user data from the provided context.
+     *
+     * Overwritten to delete the user.
+     *
+     * @param manager $privacymanager
+     * @param expired_context $expiredctx
+     * @return \context|false
+     */
+    protected function delete_expired_context(manager $privacymanager, expired_context $expiredctx) {
+        $context = \context::instance_by_id($expiredctx->get('contextid'), IGNORE_MISSING);
+        if (!$context) {
+            api::delete_expired_context($expiredctx->get('contextid'));
+            return false;
+        }
+
+        if (!PHPUNIT_TEST) {
+            mtrace('Deleting context ' . $context->id . ' - ' .
+                shorten_text($context->get_context_name(true, true)));
+        }
+
+        // To ensure that all user data is deleted, instead of deleting by context, we run through and collect any stray
+        // contexts for the user that may still exist and call delete_data_for_user().
+        $user = \core_user::get_user($context->instanceid, '*', MUST_EXIST);
+        $approvedlistcollection = new \core_privacy\local\request\contextlist_collection($user->id);
+        $contextlistcollection = $privacymanager->get_contexts_for_userid($user->id);
+
+        foreach ($contextlistcollection as $contextlist) {
+            $approvedlistcollection->add_contextlist(new \core_privacy\local\request\approved_contextlist(
+                $user,
+                $contextlist->get_component(),
+                $contextlist->get_contextids()
+            ));
+        }
+
+        $privacymanager->delete_data_for_user($approvedlistcollection);
+        api::set_expired_context_status($expiredctx, expired_context::STATUS_CLEANED);
+
+        // Delete the user.
+        delete_user($user);
+
+        return $context;
+    }
+}
@@ -0,0 +1,56 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting data category.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+
+/**
+ * Class for exporting field data.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return \tool_dataprivacy\category::class;
+    }
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+}
@@ -0,0 +1,45 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting context instance.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\persistent_exporter;
+
+/**
+ * Class for exporting context instance.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return \tool_dataprivacy\context_instance::class;
+    }
+}
@@ -0,0 +1,201 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting user evidence with all competencies.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use core\external\persistent_exporter;
+use core_user;
+use core_user\external\user_summary_exporter;
+use dml_exception;
+use moodle_exception;
+use renderer_base;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class for exporting user evidence with all competencies.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_request_exporter extends persistent_exporter {
+
+    /**
+     * Class definition.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return data_request::class;
+    }
+
+    /**
+     * Related objects definition.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return [
+            'context' => 'context',
+        ];
+    }
+
+    /**
+     * Other properties definition.
+     *
+     * @return array
+     */
+    protected static function define_other_properties() {
+        return [
+            'foruser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+            ],
+            'requestedbyuser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+                'optional' => true
+            ],
+            'dpouser' => [
+                'type' => user_summary_exporter::read_properties_definition(),
+                'optional' => true
+            ],
+            'messagehtml' => [
+                'type' => PARAM_RAW,
+                'optional' => true
+            ],
+            'typename' => [
+                'type' => PARAM_TEXT,
+            ],
+            'typenameshort' => [
+                'type' => PARAM_TEXT,
+            ],
+            'statuslabel' => [
+                'type' => PARAM_TEXT,
+            ],
+            'statuslabelclass' => [
+                'type' => PARAM_TEXT,
+            ],
+            'canreview' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+            'approvedeny' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+            'canmarkcomplete' => [
+                'type' => PARAM_BOOL,
+                'optional' => true,
+                'default' => false
+            ],
+        ];
+    }
+
+    /**
+     * Assign values to the defined other properties.
+     *
+     * @param renderer_base $output The output renderer object.
+     * @return array
+     * @throws coding_exception
+     * @throws dml_exception
+     * @throws moodle_exception
+     */
+    protected function get_other_values(renderer_base $output) {
+        $values = [];
+
+        $foruserid = $this->persistent->get('userid');
+        $user = core_user::get_user($foruserid, '*', MUST_EXIST);
+        $userexporter = new user_summary_exporter($user);
+        $values['foruser'] = $userexporter->export($output);
+
+        $requestedbyid = $this->persistent->get('requestedby');
+        if ($requestedbyid != $foruserid) {
+            $user = core_user::get_user($requestedbyid, '*', MUST_EXIST);
+            $userexporter = new user_summary_exporter($user);
+            $values['requestedbyuser'] = $userexporter->export($output);
+        } else {
+            $values['requestedbyuser'] = $values['foruser'];
+        }
+
+        if (!empty($this->persistent->get('dpo'))) {
+            $dpoid = $this->persistent->get('dpo');
+            $user = core_user::get_user($dpoid, '*', MUST_EXIST);
+            $userexporter = new user_summary_exporter($user);
+            $values['dpouser'] = $userexporter->export($output);
+        }
+
+        $values['messagehtml'] = text_to_html($this->persistent->get('comments'));
+
+        $requesttype = $this->persistent->get('type');
+        $values['typename'] = helper::get_request_type_string($requesttype);
+        $values['typenameshort'] = helper::get_shortened_request_type_string($requesttype);
+
+        $values['canreview'] = false;
+        $values['approvedeny'] = false;
+        $values['statuslabel'] = helper::get_request_status_string($this->persistent->get('status'));
+
+        switch ($this->persistent->get('status')) {
+            case api::DATAREQUEST_STATUS_PENDING:
+                $values['statuslabelclass'] = 'label-info';
+                // Request can be manually completed for general enquiry requests.
+                $values['canmarkcomplete'] = $requesttype == api::DATAREQUEST_TYPE_OTHERS;
+                break;
+            case api::DATAREQUEST_STATUS_PREPROCESSING:
+                $values['statuslabelclass'] = 'label-default';
+                break;
+            case api::DATAREQUEST_STATUS_AWAITING_APPROVAL:
+                $values['statuslabelclass'] = 'label-info';
+                // DPO can review the request once it's ready.
+                $values['canreview'] = true;
+                // Whether the DPO can approve or deny the request.
+                $values['approvedeny'] = in_array($requesttype, [api::DATAREQUEST_TYPE_EXPORT, api::DATAREQUEST_TYPE_DELETE]);
+                break;
+            case api::DATAREQUEST_STATUS_APPROVED:
+                $values['statuslabelclass'] = 'label-info';
+                break;
+            case api::DATAREQUEST_STATUS_PROCESSING:
+                $values['statuslabelclass'] = 'label-info';
+                break;
+            case api::DATAREQUEST_STATUS_COMPLETE:
+            case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+            case api::DATAREQUEST_STATUS_DELETED:
+                $values['statuslabelclass'] = 'label-success';
+                break;
+            case api::DATAREQUEST_STATUS_CANCELLED:
+                $values['statuslabelclass'] = 'label-warning';
+                break;
+            case api::DATAREQUEST_STATUS_REJECTED:
+                $values['statuslabelclass'] = 'label-important';
+                break;
+            case api::DATAREQUEST_STATUS_EXPIRED:
+                $values['statuslabelclass'] = 'label-default';
+                break;
+        }
+
+        return $values;
+    }
+}
@@ -0,0 +1,63 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting an object containing a name and a description.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use core\external\exporter;
+
+/**
+ * Class that exports an object containing a name and a description.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class name_description_exporter extends exporter {
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+
+    /**
+     * Return the list of properties.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'name' => [
+                'type' => PARAM_TEXT,
+            ],
+            'description' => [
+                'type' => PARAM_TEXT,
+            ],
+        ];
+    }
+}
@@ -0,0 +1,146 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for exporting data purpose.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\external;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use core\external\persistent_exporter;
+use DateInterval;
+use Exception;
+use renderer_base;
+use tool_dataprivacy\purpose;
+
+/**
+ * Class for exporting field data.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purpose_exporter extends persistent_exporter {
+
+    /**
+     * Defines the persistent class.
+     *
+     * @return string
+     */
+    protected static function define_class() {
+        return purpose::class;
+    }
+
+    /**
+     * Returns a list of objects that are related.
+     *
+     * @return array
+     */
+    protected static function define_related() {
+        return array(
+            'context' => 'context',
+        );
+    }
+
+    /**
+     * Return the list of additional properties.
+     *
+     * @return array
+     */
+    protected static function define_other_properties() {
+        return [
+            'formattedretentionperiod' => [
+                'type' => PARAM_TEXT
+            ],
+            'formattedlawfulbases' => [
+                'type' => name_description_exporter::read_properties_definition(),
+                'multiple' => true
+            ],
+            'formattedsensitivedatareasons' => [
+                'type' => name_description_exporter::read_properties_definition(),
+                'multiple' => true,
+                'optional' => true
+            ],
+        ];
+    }
+
+    /**
+     * Return other properties.
+     *
+     * @param renderer_base $output
+     * @return array
+     * @throws coding_exception
+     * @throws Exception
+     */
+    protected function get_other_values(renderer_base $output) {
+        $values = [];
+
+        $formattedbases = [];
+        $lawfulbases = explode(',', $this->persistent->get('lawfulbases'));
+        if (!empty($lawfulbases)) {
+            foreach ($lawfulbases as $basis) {
+                if (empty(trim($basis))) {
+                    continue;
+                }
+                $formattedbases[] = (object)[
+                    'name' => get_string($basis . '_name', 'tool_dataprivacy'),
+                    'description' => get_string($basis . '_description', 'tool_dataprivacy')
+                ];
+            }
+        }
+        $values['formattedlawfulbases'] = $formattedbases;
+
+        $formattedsensitivereasons = [];
+        $sensitivereasons = explode(',', $this->persistent->get('sensitivedatareasons'));
+        if (!empty($sensitivereasons)) {
+            foreach ($sensitivereasons as $reason) {
+                if (empty(trim($reason))) {
+                    continue;
+                }
+                $formattedsensitivereasons[] = (object)[
+                    'name' => get_string($reason . '_name', 'tool_dataprivacy'),
+                    'description' => get_string($reason . '_description', 'tool_dataprivacy')
+                ];
+            }
+        }
+        $values['formattedsensitivedatareasons'] = $formattedsensitivereasons;
+
+        $retentionperiod = $this->persistent->get('retentionperiod');
+        if ($retentionperiod) {
+            $interval = new DateInterval($retentionperiod);
+
+            // It is one or another.
+            if ($interval->y) {
+                $formattedtime = get_string('numyears', 'moodle', $interval->format('%y'));
+            } else if ($interval->m) {
+                $formattedtime = get_string('nummonths', 'moodle', $interval->format('%m'));
+            } else if ($interval->d) {
+                $formattedtime = get_string('numdays', 'moodle', $interval->format('%d'));
+            } else {
+                $formattedtime = get_string('retentionperiodzero', 'tool_dataprivacy');
+            }
+        } else {
+            $formattedtime = get_string('retentionperiodnotdefined', 'tool_dataprivacy');
+        }
+        $values['formattedretentionperiod'] = $formattedtime;
+
+        return $values;
+    }
+}
@@ -0,0 +1,67 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update a data category.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+
+/**
+ * Data category form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class category extends persistent {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\category';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $mform = $this->_form;
+
+        $mform->addElement('text', 'name', get_string('name'), 'maxlength="100"');
+        $mform->setType('name', PARAM_TEXT);
+        $mform->addRule('name', get_string('required'), 'required', null, 'server');
+        $mform->addRule('name', get_string('maximumchars', '', 100), 'maxlength', 100, 'server');
+
+        $mform->addElement('editor', 'description', get_string('description'), null, ['autosave' => false]);
+        $mform->setType('description', PARAM_CLEANHTML);
+
+        if (!empty($this->_customdata['showbuttons'])) {
+            if (!$this->get_persistent()->get('id')) {
+                $savetext = get_string('add');
+            } else {
+                $savetext = get_string('savechanges');
+            }
+            $this->add_action_buttons(true, $savetext);
+        }
+    }
+}
@@ -0,0 +1,221 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update context instance data.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_registry;
+use tool_dataprivacy\purpose;
+
+/**
+ * Context instance data form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class context_instance extends \core\form\persistent {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\context_instance';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $this->_form->setDisableShortforms();
+
+        $this->_form->addElement('header', 'contextname', $this->_customdata['contextname']);
+
+        $subjectscope = implode(', ', $this->_customdata['subjectscope']);
+        if (empty($subjectscope)) {
+            $subjectscope = get_string('noassignedroles', 'tool_dataprivacy');
+        }
+        $this->_form->addElement('static', 'subjectscope', get_string('subjectscope', 'tool_dataprivacy'), $subjectscope);
+        $this->_form->addHelpButton('subjectscope', 'subjectscope', 'tool_dataprivacy');
+
+        $this->add_purpose_category($this->_customdata['context']->contextlevel);
+
+        $this->_form->addElement('hidden', 'contextid');
+        $this->_form->setType('contextid', PARAM_INT);
+
+        parent::add_action_buttons(false, get_string('savechanges'));
+    }
+
+    /**
+     * Adds purpose and category selectors.
+     *
+     * @param int $contextlevel Apply this context level defaults. False for no defaults.
+     * @return null
+     */
+    protected function add_purpose_category($contextlevel = false) {
+
+        $mform = $this->_form;
+
+        $addcategorytext = $this->get_add_element_content(get_string('addcategory', 'tool_dataprivacy'));
+        $categoryselect = $mform->createElement('select', 'categoryid', null, $this->_customdata['categories']);
+        $addcategory = $mform->createElement('button', 'addcategory', $addcategorytext, ['data-add-element' => 'category']);
+        $mform->addElement('group', 'categorygroup', get_string('category', 'tool_dataprivacy'),
+            [$categoryselect, $addcategory], null, false);
+        $mform->addHelpButton('categorygroup', 'category', 'tool_dataprivacy');
+        $mform->setType('categoryid', PARAM_INT);
+        $mform->setDefault('categoryid', 0);
+
+        $addpurposetext = $this->get_add_element_content(get_string('addpurpose', 'tool_dataprivacy'));
+        $purposeselect = $mform->createElement('select', 'purposeid', null, $this->_customdata['purposes']);
+        $addpurpose = $mform->createElement('button', 'addpurpose', $addpurposetext, ['data-add-element' => 'purpose']);
+        $mform->addElement('group', 'purposegroup', get_string('purpose', 'tool_dataprivacy'),
+            [$purposeselect, $addpurpose], null, false);
+        $mform->addHelpButton('purposegroup', 'purpose', 'tool_dataprivacy');
+        $mform->setType('purposeid', PARAM_INT);
+        $mform->setDefault('purposeid', 0);
+
+        if (!empty($this->_customdata['currentretentionperiod'])) {
+            $mform->addElement('static', 'retention_current', get_string('retentionperiod', 'tool_dataprivacy'),
+                $this->_customdata['currentretentionperiod']);
+            $mform->addHelpButton('retention_current', 'retentionperiod', 'tool_dataprivacy');
+        }
+    }
+
+    /**
+     * Returns the 'add' label.
+     *
+     * It depends on the theme in use.
+     *
+     * @param string $label
+     * @return \renderable|string
+     */
+    private function get_add_element_content($label) {
+        global $PAGE, $OUTPUT;
+
+        $bs4 = false;
+
+        $theme = $PAGE->theme;
+        if ($theme->name === 'boost') {
+            $bs4 = true;
+        } else {
+            foreach ($theme->parents as $basetheme) {
+                if ($basetheme === 'boost') {
+                    $bs4 = true;
+                }
+            }
+        }
+
+        if (!$bs4) {
+            return $label;
+        }
+        return $OUTPUT->pix_icon('e/insert', $label);
+    }
+
+    /**
+     * Returns the customdata array for the provided context instance.
+     *
+     * @param \context $context
+     * @return array
+     */
+    public static function get_context_instance_customdata(\context $context) {
+
+        $persistent = \tool_dataprivacy\context_instance::get_record_by_contextid($context->id, false);
+        if (!$persistent) {
+            $persistent = new \tool_dataprivacy\context_instance();
+            $persistent->set('contextid', $context->id);
+        }
+
+        $purposeoptions = \tool_dataprivacy\output\data_registry_page::purpose_options(
+            api::get_purposes()
+        );
+        $categoryoptions = \tool_dataprivacy\output\data_registry_page::category_options(
+            api::get_categories()
+        );
+
+        $customdata = [
+            'context' => $context,
+            'subjectscope' => data_registry::get_subject_scope($context),
+            'contextname' => $context->get_context_name(),
+            'persistent' => $persistent,
+            'purposes' => $purposeoptions,
+            'categories' => $categoryoptions,
+        ];
+
+        $effectivepurpose = api::get_effective_context_purpose($context);
+        if ($effectivepurpose) {
+
+            $customdata['currentretentionperiod'] = self::get_retention_display_text($effectivepurpose, $context->contextlevel,
+                $context);
+
+            $customdata['purposeretentionperiods'] = [];
+            foreach ($purposeoptions as $optionvalue => $unused) {
+                // Get the effective purpose if $optionvalue would be the selected value.
+                $purpose = api::get_effective_context_purpose($context, $optionvalue);
+
+                $retentionperiod = self::get_retention_display_text(
+                    $purpose,
+                    $context->contextlevel,
+                    $context
+                );
+                $customdata['purposeretentionperiods'][$optionvalue] = $retentionperiod;
+            }
+        }
+
+        return $customdata;
+    }
+
+    /**
+     * Returns the purpose display text.
+     *
+     * @param purpose $effectivepurpose
+     * @param int $retentioncontextlevel
+     * @param \context $context The context, just for displaying (filters) purposes.
+     * @return string
+     */
+    protected static function get_retention_display_text(purpose $effectivepurpose, $retentioncontextlevel, \context $context) {
+        global $PAGE;
+
+        $renderer = $PAGE->get_renderer('tool_dataprivacy');
+
+        $exporter = new \tool_dataprivacy\external\purpose_exporter($effectivepurpose, ['context' => $context]);
+        $exportedpurpose = $exporter->export($renderer);
+
+        switch ($retentioncontextlevel) {
+            case CONTEXT_COURSE:
+            case CONTEXT_MODULE:
+            case CONTEXT_BLOCK:
+                $str = get_string('effectiveretentionperiodcourse', 'tool_dataprivacy',
+                    $exportedpurpose->formattedretentionperiod);
+                break;
+            case CONTEXT_USER:
+                $str = get_string('effectiveretentionperioduser', 'tool_dataprivacy',
+                    $exportedpurpose->formattedretentionperiod);
+                break;
+            default:
+                $str = $exportedpurpose->formattedretentionperiod;
+        }
+
+        return $str;
+    }
+
+}
@@ -0,0 +1,124 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update context level data.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_registry;
+
+/**
+ * Context level data form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class contextlevel extends context_instance {
+
+    /**
+     * @var The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\contextlevel';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $this->_form->setDisableShortforms();
+
+        $this->_form->addElement('header', 'contextlevelname', $this->_customdata['contextlevelname']);
+
+        $this->add_purpose_category();
+
+        $this->_form->addElement('hidden', 'contextlevel');
+        $this->_form->setType('contextlevel', PARAM_INT);
+
+        parent::add_action_buttons(false, get_string('savechanges'));
+    }
+
+    /**
+     * Returns the customdata array for the provided context level.
+     *
+     * @param int $contextlevel
+     * @return array
+     */
+    public static function get_contextlevel_customdata($contextlevel) {
+
+        $persistent = \tool_dataprivacy\contextlevel::get_record_by_contextlevel($contextlevel, false);
+        if (!$persistent) {
+            $persistent = new \tool_dataprivacy\contextlevel();
+            $persistent->set('contextlevel', $contextlevel);
+        }
+
+        $includeinherit = true;
+        if ($contextlevel == CONTEXT_SYSTEM) {
+            // Nothing to inherit from Site level.
+            $includeinherit = false;
+        }
+        $includenotset = true;
+        if ($contextlevel == CONTEXT_SYSTEM || $contextlevel == CONTEXT_USER) {
+            // No 'not set' value for system and user because we do not have defaults for them.
+            $includenotset = false;
+        }
+        $purposeoptions = \tool_dataprivacy\output\data_registry_page::purpose_options(
+            api::get_purposes(), $includenotset, $includeinherit);
+        $categoryoptions = \tool_dataprivacy\output\data_registry_page::category_options(
+            api::get_categories(), $includenotset, $includeinherit);
+
+        $customdata = [
+            'contextlevel' => $contextlevel,
+            'contextlevelname' => get_string('contextlevelname' . $contextlevel, 'tool_dataprivacy'),
+            'persistent' => $persistent,
+            'purposes' => $purposeoptions,
+            'categories' => $categoryoptions,
+        ];
+
+        $effectivepurpose = api::get_effective_contextlevel_purpose($contextlevel);
+        if ($effectivepurpose) {
+
+            $customdata['currentretentionperiod'] = self::get_retention_display_text($effectivepurpose, $contextlevel,
+                \context_system::instance());
+
+            $customdata['purposeretentionperiods'] = [];
+            foreach ($purposeoptions as $optionvalue => $unused) {
+
+                // Get the effective purpose if $optionvalue would be the selected value.
+                list($purposeid, $unused) = data_registry::get_effective_default_contextlevel_purpose_and_category($contextlevel,
+                    $optionvalue);
+                $purpose = new \tool_dataprivacy\purpose($purposeid);
+
+                $retentionperiod = self::get_retention_display_text(
+                    $purpose,
+                    $contextlevel,
+                    \context_system::instance()
+                );
+                $customdata['purposeretentionperiods'][$optionvalue] = $retentionperiod;
+            }
+        }
+
+        return $customdata;
+    }
+}
@@ -0,0 +1,81 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the defaults form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use \tool_dataprivacy\output\data_registry_page;
+
+require_once($CFG->libdir . '/formslib.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Context levels defaults form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class defaults extends \moodleform {
+
+    /**
+     * Define the form.
+     */
+    public function definition() {
+        global $OUTPUT;
+
+        $mform = $this->_form;
+        $mform->setDisableShortforms();
+
+        $notification = $OUTPUT->notification(get_string('defaultsinfo', 'tool_dataprivacy'),
+            \core\output\notification::NOTIFY_INFO);
+        $mform->addElement('html', $notification);
+
+        foreach ($this->_customdata['levels'] as $level => $classname) {
+
+            $mform->addElement('header', $classname . '-header',
+                get_string('contextlevelname' . $level, 'tool_dataprivacy'));
+
+            list($purposevar, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+
+            $includeinherit = true;
+            if ($level == CONTEXT_SYSTEM) {
+                $includeinherit = false;
+            }
+
+            $categoryoptions = data_registry_page::category_options($this->_customdata['categories'], false, $includeinherit);
+            $purposeoptions = data_registry_page::category_options($this->_customdata['purposes'], false, $includeinherit);
+
+            $mform->addElement('select', $categoryvar, get_string('category', 'tool_dataprivacy'), $categoryoptions);
+            $mform->addHelpButton($categoryvar, 'categorydefault', 'tool_dataprivacy');
+            $mform->setType($categoryvar, PARAM_INT);
+
+            $mform->addElement('select', $purposevar, get_string('purpose', 'tool_dataprivacy'), $purposeoptions);
+            $mform->addHelpButton($purposevar, 'purposedefault', 'tool_dataprivacy');
+            $mform->setType($purposevar, PARAM_INT);
+        }
+
+        $this->add_action_buttons(true, get_string('savechanges'));
+    }
+}
@@ -0,0 +1,149 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form add/update a data purpose.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+defined('MOODLE_INTERNAL') || die();
+
+use core\form\persistent;
+
+/**
+ * Data purpose form.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 David Monllao
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purpose extends persistent {
+
+    /**
+     * @var string The persistent class.
+     */
+    protected static $persistentclass = 'tool_dataprivacy\\purpose';
+
+    /**
+     * Define the form - called by parent constructor
+     */
+    public function definition() {
+        $mform = $this->_form;
+
+        $mform->addElement('text', 'name', get_string('name'), 'maxlength="100"');
+        $mform->setType('name', PARAM_TEXT);
+        $mform->addRule('name', get_string('required'), 'required', null, 'server');
+        $mform->addRule('name', get_string('maximumchars', '', 100), 'maxlength', 100, 'server');
+
+        $mform->addElement('editor', 'description', get_string('description'), null, ['autosave' => false]);
+        $mform->setType('description', PARAM_CLEANHTML);
+
+        // Field for selecting lawful bases (from GDPR Article 6.1).
+        $lawfulbases = [];
+        foreach (\tool_dataprivacy\purpose::GDPR_ART_6_1_ITEMS as $article) {
+            $key = 'gdpr_art_6_1_' . $article;
+            $lawfulbases[$key] = get_string($key . '_name', 'tool_dataprivacy');
+        }
+        $options = array(
+            'multiple' => true,
+        );
+        $mform->addElement('autocomplete', 'lawfulbases', get_string('lawfulbases', 'tool_dataprivacy'), $lawfulbases, $options);
+        $mform->addRule('lawfulbases', get_string('required'), 'required', null, 'server');
+        $mform->addHelpButton('lawfulbases', 'lawfulbases', 'tool_dataprivacy');
+
+        // Optional field for selecting reasons for collecting sensitive personal data (from GDPR Article 9.2).
+        $sensitivereasons = [];
+        foreach (\tool_dataprivacy\purpose::GDPR_ART_9_2_ITEMS as $article) {
+            $key = 'gdpr_art_9_2_' . $article;
+            $sensitivereasons[$key] = get_string($key . '_name', 'tool_dataprivacy');
+        }
+        $mform->addElement('autocomplete', 'sensitivedatareasons', get_string('sensitivedatareasons', 'tool_dataprivacy'),
+            $sensitivereasons, $options);
+        $mform->addHelpButton('sensitivedatareasons', 'sensitivedatareasons', 'tool_dataprivacy');
+
+        $number = $mform->createElement('text', 'retentionperiodnumber', null, ['size' => 8]);
+        $unitoptions = [
+            'Y' => get_string('years'),
+            'M' => strtolower(get_string('months')),
+            'D' => strtolower(get_string('days'))
+        ];
+        $unit = $mform->createElement('select', 'retentionperiodunit', '', $unitoptions);
+        $mform->addGroup(['number' => $number, 'unit' => $unit], 'retentionperiod',
+            get_string('retentionperiod', 'tool_dataprivacy'), null, false);
+        $mform->setType('retentionperiodnumber', PARAM_INT);
+
+        $this->_form->addElement('advcheckbox', 'protected', get_string('protected', 'tool_dataprivacy'),
+            get_string('protectedlabel', 'tool_dataprivacy'));
+
+        if (!empty($this->_customdata['showbuttons'])) {
+            if (!$this->get_persistent()->get('id')) {
+                $savetext = get_string('add');
+            } else {
+                $savetext = get_string('savechanges');
+            }
+            $this->add_action_buttons(true, $savetext);
+        }
+    }
+
+    /**
+     * Converts fields.
+     *
+     * @param \stdClass $data
+     * @return \stdClass
+     */
+    protected static function convert_fields(\stdClass $data) {
+        $data = parent::convert_fields($data);
+
+        if (is_array($data->lawfulbases)) {
+            $data->lawfulbases = implode(',', $data->lawfulbases);
+        }
+        if (!empty($data->sensitivedatareasons) && is_array($data->sensitivedatareasons)) {
+            $data->sensitivedatareasons = implode(',', $data->sensitivedatareasons);
+        }
+
+        // A single value.
+        $data->retentionperiod = 'P' . $data->retentionperiodnumber . $data->retentionperiodunit;
+        unset($data->retentionperiodnumber);
+        unset($data->retentionperiodunit);
+        return $data;
+    }
+
+    /**
+     * Get the default data.
+     *
+     * @return \stdClass
+     */
+    protected function get_default_data() {
+        $data = parent::get_default_data();
+
+        $data->lawfulbases = explode(',', $data->lawfulbases);
+        if (!empty($data->sensitivedatareasons)) {
+            $data->sensitivedatareasons = explode(',', $data->sensitivedatareasons);
+        }
+
+        // Convert the single properties into number and unit.
+        $strlen = strlen($data->retentionperiod);
+        $data->retentionperiodnumber = substr($data->retentionperiod, 1, $strlen - 2);
+        $data->retentionperiodunit = substr($data->retentionperiod, $strlen - 1);
+        unset($data->retentionperiod);
+
+        return $data;
+    }
+}
@@ -0,0 +1,105 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+
+/**
+ * Filter selector field.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\form;
+
+defined('MOODLE_INTERNAL') || die();
+
+use MoodleQuickForm_autocomplete;
+
+global $CFG;
+require_once($CFG->libdir . '/form/autocomplete.php');
+
+/**
+ * Form field type for choosing a user on the data request creation form.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class request_user_autocomplete extends MoodleQuickForm_autocomplete {
+
+    /**
+     * Constructor.
+     *
+     * @param string $elementname Element name
+     * @param mixed $elementlabel Label(s) for an element
+     * @param array $options Options to control the element's display
+     *                       Valid options are:
+     *                       - multiple bool Whether or not the field accepts more than one values.
+     */
+    public function __construct($elementname = null, $elementlabel = null, $options = array()) {
+        $validattributes = array(
+            'ajax' => 'tool_dataprivacy/form-user-selector',
+        );
+        if (!empty($options['multiple'])) {
+            $validattributes['multiple'] = 'multiple';
+        }
+
+        parent::__construct($elementname, $elementlabel, array(), $validattributes);
+    }
+
+    /**
+     * Set the value of this element.
+     *
+     * @param  string|array $value The value to set.
+     * @return boolean
+     */
+    public function setValue($value) {
+        global $DB;
+        $values = (array) $value;
+        $ids = [];
+        foreach ($values as $onevalue) {
+            if (!empty($onevalue) && (!$this->optionExists($onevalue)) &&
+                    ($onevalue !== '_qf__force_multiselect_submission')) {
+                array_push($ids, $onevalue);
+            }
+        }
+
+        if (empty($ids)) {
+            return $this->setSelected([]);
+        }
+
+        $toselect = [];
+        list($insql, $inparams) = $DB->get_in_or_equal($ids, SQL_PARAMS_NAMED);
+        $allusernames = get_all_user_name_fields(true);
+        // Exclude admins and guest user.
+        $excludedusers = array_keys(get_admins()) + [guest_user()->id];
+        $sort = 'firstname ASC';
+        $fields = 'id, email, ' . $allusernames;
+        // Fetch the selected users, exclude the admins and guest users.
+        $users = get_users(true, '', true, $excludedusers, $sort, '', '', 0, 30, $fields, "id $insql", $inparams);
+        foreach ($users as $user) {
+            $userdata = (object)[
+                'name' => fullname($user),
+                'email' => $user->email
+            ];
+            $this->addOption(get_string('nameemail', 'tool_dataprivacy', $userdata), $user->id);
+            array_push($toselect, $user->id);
+        }
+
+        return $this->setSelected($toselect);
+    }
+}
@@ -0,0 +1,212 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Collection of helper functions for the data privacy tool.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\local;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use moodle_exception;
+use tool_dataprivacy\api;
+
+/**
+ * Class containing helper functions for the data privacy tool.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class helper {
+    /** The default number of results to be shown per page. */
+    const DEFAULT_PAGE_SIZE = 20;
+
+    /** Filter constant associated with the request type filter. */
+    const FILTER_TYPE = 1;
+
+    /** Filter constant associated with the request status filter. */
+    const FILTER_STATUS = 2;
+
+    /** The request filters preference key. */
+    const PREF_REQUEST_FILTERS = 'tool_dataprivacy_request-filters';
+
+    /**
+     * Retrieves the human-readable text value of a data request type.
+     *
+     * @param int $requesttype The request type.
+     * @return string
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public static function get_request_type_string($requesttype) {
+        $types = self::get_request_types();
+        if (!isset($types[$requesttype])) {
+            throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+        return $types[$requesttype];
+    }
+
+    /**
+     * Retrieves the human-readable shortened text value of a data request type.
+     *
+     * @param int $requesttype The request type.
+     * @return string
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public static function get_shortened_request_type_string($requesttype) {
+        $types = self::get_request_types_short();
+        if (!isset($types[$requesttype])) {
+            throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+        return $types[$requesttype];
+    }
+
+    /**
+     * Returns the key value-pairs of request type code and their string value.
+     *
+     * @return array
+     */
+    public static function get_request_types() {
+        return [
+            api::DATAREQUEST_TYPE_EXPORT => get_string('requesttypeexport', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_DELETE => get_string('requesttypedelete', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_OTHERS => get_string('requesttypeothers', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Returns the key value-pairs of request type code and their shortened string value.
+     *
+     * @return array
+     */
+    public static function get_request_types_short() {
+        return [
+            api::DATAREQUEST_TYPE_EXPORT => get_string('requesttypeexportshort', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_DELETE => get_string('requesttypedeleteshort', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_OTHERS => get_string('requesttypeothersshort', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Retrieves the human-readable value of a data request status.
+     *
+     * @param int $status The request status.
+     * @return string
+     * @throws moodle_exception
+     */
+    public static function get_request_status_string($status) {
+        $statuses = self::get_request_statuses();
+        if (!isset($statuses[$status])) {
+            throw new moodle_exception('errorinvalidrequeststatus', 'tool_dataprivacy');
+        }
+
+        return $statuses[$status];
+    }
+
+    /**
+     * Returns the key value-pairs of request status code and string value.
+     *
+     * @return array
+     */
+    public static function get_request_statuses() {
+        return [
+            api::DATAREQUEST_STATUS_PENDING => get_string('statuspending', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_PREPROCESSING => get_string('statuspreprocessing', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_AWAITING_APPROVAL => get_string('statusawaitingapproval', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_APPROVED => get_string('statusapproved', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_PROCESSING => get_string('statusprocessing', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_COMPLETE => get_string('statuscomplete', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_DOWNLOAD_READY => get_string('statusready', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_EXPIRED => get_string('statusexpired', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_CANCELLED => get_string('statuscancelled', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_REJECTED => get_string('statusrejected', 'tool_dataprivacy'),
+            api::DATAREQUEST_STATUS_DELETED => get_string('statusdeleted', 'tool_dataprivacy'),
+        ];
+    }
+
+    /**
+     * Get the users that a user can make data request for.
+     *
+     * E.g. User having a parent role and has the 'tool/dataprivacy:makedatarequestsforchildren' capability.
+     * @param int $userid The user's ID.
+     * @return array
+     */
+    public static function get_children_of_user($userid) {
+        global $DB;
+
+        // Get users that the user has role assignments to.
+        $allusernames = get_all_user_name_fields(true, 'u');
+        $sql = "SELECT u.id, $allusernames
+                  FROM {role_assignments} ra, {context} c, {user} u
+                 WHERE ra.userid = :userid
+                       AND ra.contextid = c.id
+                       AND c.instanceid = u.id
+                       AND c.contextlevel = :contextlevel";
+        $params = [
+            'userid' => $userid,
+            'contextlevel' => CONTEXT_USER
+        ];
+
+        // The final list of users that we will return.
+        $finalresults = [];
+
+        // Our prospective list of users.
+        if ($candidates = $DB->get_records_sql($sql, $params)) {
+            foreach ($candidates as $key => $child) {
+                $childcontext = \context_user::instance($child->id);
+                if (has_capability('tool/dataprivacy:makedatarequestsforchildren', $childcontext, $userid)) {
+                    $finalresults[$key] = $child;
+                }
+            }
+        }
+        return $finalresults;
+    }
+
+    /**
+     * Get options for the data requests filter.
+     *
+     * @return array
+     * @throws coding_exception
+     */
+    public static function get_request_filter_options() {
+        $filters = [
+            self::FILTER_TYPE => (object)[
+                'name' => get_string('requesttype', 'tool_dataprivacy'),
+                'options' => self::get_request_types_short()
+            ],
+            self::FILTER_STATUS => (object)[
+                'name' => get_string('requeststatus', 'tool_dataprivacy'),
+                'options' => self::get_request_statuses()
+            ],
+        ];
+        $options = [];
+        foreach ($filters as $category => $filtercategory) {
+            foreach ($filtercategory->options as $key => $name) {
+                $option = (object)[
+                    'category' => $filtercategory->name,
+                    'name' => $name
+                ];
+                $options["{$category}:{$key}"] = get_string('filteroption', 'tool_dataprivacy', $option);
+            }
+        }
+        return $options;
+    }
+}
@@ -0,0 +1,76 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class \tool_dataprivacy\manager_observer.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * A failure observer for the \core_privacy\manager.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class manager_observer implements \core_privacy\manager_observer {
+    /**
+     * Notifies all DPOs that an exception occurred.
+     *
+     * @param \Throwable $e
+     * @param string $component
+     * @param string $interface
+     * @param string $methodname
+     * @param array $params
+     */
+    public function handle_component_failure($e, $component, $interface, $methodname, array $params) {
+        // Get the list of the site Data Protection Officers.
+        $dpos = api::get_site_dpos();
+
+        $messagesubject = get_string('exceptionnotificationsubject', 'tool_dataprivacy');
+        $a = (object)[
+            'fullmethodname' => \core_privacy\manager::get_provider_classname_for_component($component) . '::' . $methodname,
+            'component' => $component,
+            'message' => $e->getMessage(),
+            'backtrace' => $e->getTraceAsString()
+        ];
+        $messagebody = get_string('exceptionnotificationbody', 'tool_dataprivacy', $a);
+
+        // Email the data request to the Data Protection Officer(s)/Admin(s).
+        foreach ($dpos as $dpo) {
+            $message = new \core\message\message();
+            $message->courseid          = SITEID;
+            $message->component         = 'tool_dataprivacy';
+            $message->name              = 'notifyexceptions';
+            $message->userfrom          = \core_user::get_noreply_user();
+            $message->subject           = $messagesubject;
+            $message->fullmessageformat = FORMAT_HTML;
+            $message->notification      = 1;
+            $message->userto            = $dpo;
+            $message->fullmessagehtml   = $messagebody;
+            $message->fullmessage       = html_to_text($messagebody);
+
+            // Send message.
+            message_send($message);
+        }
+    }
+}
@@ -0,0 +1,156 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing helper methods for processing data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class containing helper methods for processing data requests.
+ *
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class metadata_registry {
+
+    /**
+     * Returns plugin types / plugins and the user data that it stores in a format that can be sent to a template.
+     *
+     * @return array An array with all of the plugin types / plugins and the user data they store.
+     */
+    public function get_registry_metadata() {
+        $manager = new \core_privacy\manager();
+        $manager->set_observer(new \tool_dataprivacy\manager_observer());
+
+        $pluginman = \core_plugin_manager::instance();
+        $contributedplugins = $this->get_contrib_list();
+        $metadata = $manager->get_metadata_for_components();
+        $fullyrichtree = $this->get_full_component_list();
+        foreach ($fullyrichtree as $branch => $leaves) {
+            $plugintype = $leaves['plugin_type'];
+            $plugins = array_map(function($component) use ($manager, $metadata, $contributedplugins, $plugintype, $pluginman) {
+                // Use the plugin name for the plugins, ignore for core subsystems.
+                $internaldata = ($plugintype == 'core') ? ['component' => $component] :
+                        ['component' => $pluginman->plugin_name($component)];
+                $internaldata['raw_component'] = $component;
+                if ($manager->component_is_compliant($component)) {
+                    $internaldata['compliant'] = true;
+                    if (isset($metadata[$component])) {
+                        $collection = $metadata[$component]->get_collection();
+                        $internaldata = $this->format_metadata($collection, $component, $internaldata);
+                    } else if ($manager->is_empty_subsystem($component)) {
+                        // This is an unused subsystem.
+                        // Use the generic string.
+                        $internaldata['nullprovider'] = get_string('privacy:subsystem:empty', 'core_privacy');
+                    } else {
+                        // Call get_reason for null provider.
+                        $internaldata['nullprovider'] = get_string($manager->get_null_provider_reason($component), $component);
+                    }
+                } else {
+                    $internaldata['compliant'] = false;
+                }
+                // Check to see if we are an external plugin.
+                // Plugin names can contain _ characters, limit to 2 to just remove initial plugintype.
+                $componentshortname = explode('_', $component, 2);
+                $shortname = array_pop($componentshortname);
+                if (isset($contributedplugins[$plugintype][$shortname])) {
+                    $internaldata['external'] = true;
+                }
+                return $internaldata;
+            }, $leaves['plugins']);
+            $fullyrichtree[$branch]['plugin_type_raw'] = $plugintype;
+            // We're done using the plugin type. Convert it to a readable string.
+            $fullyrichtree[$branch]['plugin_type'] = $pluginman->plugintype_name($plugintype);
+            $fullyrichtree[$branch]['plugins'] = $plugins;
+        }
+        return $fullyrichtree;
+    }
+
+    /**
+     * Formats the metadata for use with a template.
+     *
+     * @param  array $collection The collection associated with the component that we want to expand and format.
+     * @param  string $component The component that we are dealing in
+     * @param  array $internaldata The array to add the formatted metadata to.
+     * @return array The internal data array with the formatted metadata.
+     */
+    protected function format_metadata($collection, $component, $internaldata) {
+        foreach ($collection as $collectioninfo) {
+            $privacyfields = $collectioninfo->get_privacy_fields();
+            $fields = '';
+            if (!empty($privacyfields)) {
+                $fields = array_map(function($key, $field) use ($component) {
+                    return [
+                        'field_name' => $key,
+                        'field_summary' => get_string($field, $component)
+                    ];
+                }, array_keys($privacyfields), $privacyfields);
+            }
+            // Can the metadata types be located somewhere else besides core?
+            $items = explode('\\', get_class($collectioninfo));
+            $type = array_pop($items);
+            $typedata = [
+                'name' => $collectioninfo->get_name(),
+                'type' => $type,
+                'fields' => $fields,
+                'summary' => get_string($collectioninfo->get_summary(), $component)
+            ];
+            if (strpos($type, 'subsystem_link') === 0 || strpos($type, 'plugintype_link') === 0) {
+                $typedata['link'] = true;
+            }
+            $internaldata['metadata'][] = $typedata;
+        }
+        return $internaldata;
+    }
+
+    /**
+     * Return the full list of components.
+     *
+     * @return array An array of plugin types which contain plugin data.
+     */
+    protected function get_full_component_list() {
+        global $CFG;
+
+        $list = \core_component::get_component_list();
+        $list['core']['core'] = "{$CFG->dirroot}/lib";
+        $formattedlist = [];
+        foreach ($list as $plugintype => $plugin) {
+            $formattedlist[] = ['plugin_type' => $plugintype, 'plugins' => array_keys($plugin)];
+        }
+
+        return $formattedlist;
+    }
+
+    /**
+     * Returns a list of contributed plugins installed on the system.
+     *
+     * @return array A list of contributed plugins installed.
+     */
+    protected function get_contrib_list() {
+        return array_map(function($plugins) {
+            return array_filter($plugins, function($plugindata) {
+                return !$plugindata->is_standard();
+            });
+        }, \core_plugin_manager::instance()->get_plugins());
+    }
+}
@@ -0,0 +1,88 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Categories renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\category_exporter;
+
+/**
+ * Class containing the categories page renderable.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class categories extends crud_element implements renderable, templatable {
+
+    /** @var array $categories All system categories. */
+    protected $categories = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\category[] $categories
+     */
+    public function __construct($categories) {
+        $this->categories = $categories;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $context = \context_system::instance();
+
+        $PAGE->requires->js_call_amd('tool_dataprivacy/categoriesactions', 'init');
+        $PAGE->requires->js_call_amd('tool_dataprivacy/add_category', 'getInstance', [$context->id]);
+
+        $data = new stdClass();
+
+        // Navigation links.
+        $data->navigation = [];
+        $navigationlinks = $this->get_navigation();
+        foreach ($navigationlinks as $navlink) {
+            $data->navigation[] = $navlink->export_for_template($output);
+        }
+
+        $data->categories = [];
+        foreach ($this->categories as $category) {
+            $exporter = new category_exporter($category, ['context' => \context_system::instance()]);
+            $exportedcategory = $exporter->export($output);
+
+            $actionmenu = $this->action_menu('category', $exportedcategory, $category);
+            $exportedcategory->actions = $actionmenu->export_for_template($output);
+            $data->categories[] = $exportedcategory;
+        }
+
+        return $data;
+    }
+}
@@ -0,0 +1,92 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Abstract renderer for independent renderable elements.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\purpose_exporter;
+use tool_dataprivacy\external\category_exporter;
+
+/**
+ * Abstract renderer for independent renderable elements.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class crud_element {
+
+    /**
+     * Returns the top navigation buttons.
+     *
+     * @return \action_link[]
+     */
+    protected final function get_navigation() {
+        $back = new \action_link(
+            new \moodle_url('/admin/tool/dataprivacy/dataregistry.php'),
+            get_string('back'),
+            null,
+            ['class' => 'btn btn-default']
+        );
+        return [$back];
+    }
+
+    /**
+     * Adds an action menu for the provided element
+     *
+     * @param string $elementname 'purpose' or 'category'.
+     * @param \stdClass $exported
+     * @param \core\persistent $persistent
+     * @return \action_menu
+     */
+    protected final function action_menu($elementname, $exported, $persistent) {
+
+        // Just in case, we are doing funny stuff below.
+        $elementname = clean_param($elementname, PARAM_ALPHA);
+
+        // Actions.
+        $actionmenu = new \action_menu();
+        $actionmenu->set_menu_trigger(get_string('actions'));
+        $actionmenu->set_owner_selector($elementname . '-' . $exported->id . '-actions');
+        $actionmenu->set_alignment(\action_menu::TL, \action_menu::BL);
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/edit' . $elementname . '.php',
+            ['id' => $exported->id]);
+        $link = new \action_menu_link_secondary($url, new \pix_icon('t/edit',
+            get_string('edit')), get_string('edit'));
+        $actionmenu->add($link);
+
+        if (!$persistent->is_used()) {
+            $url = new \moodle_url('#');
+            $attrs = ['data-id' => $exported->id, 'data-action' => 'delete' . $elementname, 'data-name' => $exported->name];
+            $link = new \action_menu_link_secondary($url, new \pix_icon('t/delete',
+                get_string('delete')), get_string('delete'), $attrs);
+            $actionmenu->add($link);
+        }
+
+        return $actionmenu;
+    }
+}
@@ -0,0 +1,94 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use single_select;
+use stdClass;
+use templatable;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_deletion_page implements renderable, templatable {
+
+    /** @var data_request[] $requests List of data requests. */
+    protected $filter = null;
+
+    /** @var data_request[] $requests List of data requests. */
+    protected $expiredcontextstable = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\data_request[] $filter
+     * @param expired_contexts_table $expiredcontextstable
+     */
+    public function __construct($filter, expired_contexts_table $expiredcontextstable) {
+        $this->filter = $filter;
+        $this->expiredcontextstable = $expiredcontextstable;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        $data = new stdClass();
+
+        $url = new moodle_url('/admin/tool/dataprivacy/datadeletion.php');
+        $options = [
+            CONTEXT_USER => get_string('user'),
+            CONTEXT_COURSE => get_string('course'),
+            CONTEXT_MODULE => get_string('activitiesandresources', 'tool_dataprivacy'),
+            CONTEXT_BLOCK => get_string('blocks'),
+        ];
+        $filterselector = new single_select($url, 'filter', $options, $this->filter, null);
+        $data->filter = $filterselector->export_for_template($output);
+
+        ob_start();
+        $this->expiredcontextstable->out(helper::DEFAULT_PAGE_SIZE, true);
+        $expiredcontexts = ob_get_contents();
+        ob_end_clean();
+        $data->expiredcontexts = $expiredcontexts;
+
+        $data->existingcontexts = $this->expiredcontextstable->rawdata ? true : false;
+
+        return $data;
+    }
+}
@@ -0,0 +1,60 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the data registry compliance renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use templatable;
+
+/**
+ * Class containing the data registry compliance renderable
+ *
+ * @copyright  2018 Adrian Greeve
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry_compliance_page implements renderable, templatable {
+
+    /** @var array meta-data to be displayed about the system. */
+    protected $metadata;
+
+    /**
+     * Constructor.
+     *
+     * @param array $metadata
+     */
+    public function __construct($metadata) {
+        $this->metadata = $metadata;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        return ['types' => $this->metadata];
+    }
+}
@@ -0,0 +1,481 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Data registry renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\data_registry;
+
+require_once($CFG->libdir . '/coursecatlib.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+require_once($CFG->libdir . '/blocklib.php');
+
+/**
+ * Class containing the data registry renderable
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_registry_page implements renderable, templatable {
+
+    /**
+     * @var int
+     */
+    private $defaultcontextlevel;
+
+    /**
+     * @var int
+     */
+    private $defaultcontextid;
+
+    /**
+     * Constructor.
+     *
+     * @param int $defaultcontextlevel
+     * @param int $defaultcontextid
+     * @return null
+     */
+    public function __construct($defaultcontextlevel = false, $defaultcontextid = false) {
+        $this->defaultcontextlevel = $defaultcontextlevel;
+        $this->defaultcontextid = $defaultcontextid;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $params = [\context_system::instance()->id, $this->defaultcontextlevel, $this->defaultcontextid];
+        $PAGE->requires->js_call_amd('tool_dataprivacy/data_registry', 'init', $params);
+
+        $data = new stdClass();
+        $defaultsbutton = new \action_link(
+            new \moodle_url('/admin/tool/dataprivacy/defaults.php'),
+            get_string('setdefaults', 'tool_dataprivacy'),
+            null,
+            ['class' => 'btn btn-default']
+        );
+        $data->defaultsbutton = $defaultsbutton->export_for_template($output);
+
+        $actionmenu = new \action_menu();
+        $actionmenu->set_menu_trigger(get_string('edit'), 'btn btn-default');
+        $actionmenu->set_owner_selector('dataregistry-actions');
+        $actionmenu->set_alignment(\action_menu::TL, \action_menu::BL);
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/categories.php');
+        $categories = new \action_menu_link_secondary($url, null, get_string('categories', 'tool_dataprivacy'));
+        $actionmenu->add($categories);
+
+        $url = new \moodle_url('/admin/tool/dataprivacy/purposes.php');
+        $purposes = new \action_menu_link_secondary($url, null, get_string('purposes', 'tool_dataprivacy'));
+        $actionmenu->add($purposes);
+
+        $data->actions = $actionmenu->export_for_template($output);
+
+        if (!data_registry::defaults_set()) {
+            $data->info = (object)[
+                    'message' => get_string('dataregistryinfo', 'tool_dataprivacy'),
+                    'announce' => 1
+            ];
+            $data->nosystemdefaults = (object)[
+                'message' => get_string('nosystemdefaults', 'tool_dataprivacy'),
+                'announce' => 1
+            ];
+        }
+
+        $data->tree = $this->get_default_tree_structure();
+
+        return $data;
+    }
+
+    /**
+     * Returns the tree default structure.
+     *
+     * @return array
+     */
+    private function get_default_tree_structure() {
+
+        $frontpage = \context_course::instance(SITEID);
+
+        $categorybranches = $this->get_all_category_branches();
+
+        $elements = [
+            'text' => get_string('contextlevelname' . CONTEXT_SYSTEM, 'tool_dataprivacy'),
+            'contextlevel' => CONTEXT_SYSTEM,
+            'branches' => [
+                [
+                    'text' => get_string('user'),
+                    'contextlevel' => CONTEXT_USER,
+                ], [
+                    'text' => get_string('categories'),
+                    'branches' => $categorybranches,
+                    'expandelement' => 'category',
+                ], [
+                    'text' => get_string('frontpagecourse', 'tool_dataprivacy'),
+                    'contextid' => $frontpage->id,
+                    'branches' => [
+                        [
+                            'text' => get_string('activitiesandresources', 'tool_dataprivacy'),
+                            'expandcontextid' => $frontpage->id,
+                            'expandelement' => 'module',
+                            'expanded' => 0,
+                        ], [
+                            'text' => get_string('blocks'),
+                            'expandcontextid' => $frontpage->id,
+                            'expandelement' => 'block',
+                            'expanded' => 0,
+                        ],
+                    ]
+                ]
+            ]
+        ];
+
+        // Returned as an array to follow a common array format.
+        return [self::complete($elements, $this->defaultcontextlevel, $this->defaultcontextid)];
+    }
+
+    /**
+     * Returns the hierarchy of system course categories.
+     *
+     * @return array
+     */
+    private function get_all_category_branches() {
+
+        $categories = data_registry::get_site_categories();
+
+        $categoriesbranch = [];
+        while (count($categories) > 0) {
+            foreach ($categories as $key => $category) {
+
+                $context = \context_coursecat::instance($category->id);
+                $newnode = [
+                    'text' => shorten_text(format_string($category->name, true, ['context' => $context])),
+                    'categoryid' => $category->id,
+                    'contextid' => $context->id,
+                ];
+                if ($category->coursecount > 0) {
+                    $newnode['branches'] = [
+                        [
+                            'text' => get_string('courses'),
+                            'expandcontextid' => $context->id,
+                            'expandelement' => 'course',
+                            'expanded' => 0,
+                        ]
+                    ];
+                }
+
+                $added = false;
+                if ($category->parent == 0) {
+                    // New categories root-level node.
+                    $categoriesbranch[] = $newnode;
+                    $added = true;
+
+                } else {
+                    // Add the new node under the appropriate parent.
+                    if ($this->add_to_parent_category_branch($category, $newnode, $categoriesbranch)) {
+                        $added = true;
+                    }
+                }
+
+                if ($added) {
+                    unset($categories[$key]);
+                }
+            }
+        }
+
+        return $categoriesbranch;
+    }
+
+    /**
+     * Gets the courses branch for the provided category.
+     *
+     * @param \context $catcontext
+     * @return array
+     */
+    public static function get_courses_branch(\context $catcontext) {
+
+        if ($catcontext->contextlevel !== CONTEXT_COURSECAT) {
+            throw new \coding_exception('A course category context should be provided');
+        }
+
+        $coursecat = \coursecat::get($catcontext->instanceid);
+        $courses = $coursecat->get_courses();
+
+        $branches = [];
+
+        foreach ($courses as $course) {
+
+            $coursecontext = \context_course::instance($course->id);
+
+            if (!$course->visible && !has_capability('moodle/course:viewhiddencourses', $coursecontext)) {
+                continue;
+            }
+
+            $coursenode = [
+                'text' => shorten_text(format_string($course->shortname, true, ['context' => $coursecontext])),
+                'contextid' => $coursecontext->id,
+                'branches' => [
+                    [
+                        'text' => get_string('activitiesandresources', 'tool_dataprivacy'),
+                        'expandcontextid' => $coursecontext->id,
+                        'expandelement' => 'module',
+                        'expanded' => 0,
+                    ], [
+                        'text' => get_string('blocks'),
+                        'expandcontextid' => $coursecontext->id,
+                        'expandelement' => 'block',
+                        'expanded' => 0,
+                    ],
+                ]
+            ];
+            $branches[] = self::complete($coursenode);
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Gets the modules branch for the provided course.
+     *
+     * @param \context $coursecontext
+     * @return array
+     */
+    public static function get_modules_branch(\context $coursecontext) {
+
+        if ($coursecontext->contextlevel !== CONTEXT_COURSE) {
+            throw new \coding_exception('A course context should be provided');
+        }
+
+        $branches = [];
+
+        // Using the current user.
+        $modinfo = get_fast_modinfo($coursecontext->instanceid);
+        foreach ($modinfo->get_instances() as $moduletype => $instances) {
+            foreach ($instances as $cm) {
+
+                if (!$cm->uservisible) {
+                    continue;
+                }
+
+                $a = (object)[
+                    'instancename' => shorten_text($cm->get_formatted_name()),
+                    'modulename' => get_string('pluginname', 'mod_' . $moduletype),
+                ];
+
+                $text = get_string('moduleinstancename', 'tool_dataprivacy', $a);
+                $branches[] = self::complete([
+                    'text' => $text,
+                    'contextid' => $cm->context->id,
+                ]);
+            }
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Gets the blocks branch for the provided course.
+     *
+     * @param \context $coursecontext
+     * @return null
+     */
+    public static function get_blocks_branch(\context $coursecontext) {
+        global $DB;
+
+        if ($coursecontext->contextlevel !== CONTEXT_COURSE) {
+            throw new \coding_exception('A course context should be provided');
+        }
+
+        $branches = [];
+
+        $children = $coursecontext->get_child_contexts();
+        foreach ($children as $childcontext) {
+
+            if ($childcontext->contextlevel !== CONTEXT_BLOCK) {
+                continue;
+            }
+
+            $blockinstance = block_instance_by_id($childcontext->instanceid);
+            $displayname = shorten_text(format_string($blockinstance->get_title(), true, ['context' => $childcontext]));
+            $branches[] = self::complete([
+                'text' => $displayname,
+                'contextid' => $childcontext->id,
+            ]);
+
+        }
+
+        return $branches;
+    }
+
+    /**
+     * Adds the provided category to the categories branch.
+     *
+     * @param stdClass $category
+     * @param array $newnode
+     * @param array $categoriesbranch
+     * @return bool
+     */
+    private function add_to_parent_category_branch($category, $newnode, &$categoriesbranch) {
+
+        foreach ($categoriesbranch as $key => $branch) {
+            if (!empty($branch['categoryid']) && $branch['categoryid'] == $category->parent) {
+                // It may be empty (if it does not contain courses and this is the first child cat).
+                if (!isset($categoriesbranch[$key]['branches'])) {
+                    $categoriesbranch[$key]['branches'] = [];
+                }
+                $categoriesbranch[$key]['branches'][] = $newnode;
+                return true;
+            }
+            if (!empty($branch['branches'])) {
+                $parent = $this->add_to_parent_category_branch($category, $newnode, $categoriesbranch[$key]['branches']);
+                if ($parent) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Completes tree nodes with default values.
+     *
+     * @param array $node
+     * @param int|false $currentcontextlevel
+     * @param int|false $currentcontextid
+     * @return array
+     */
+    private static function complete($node, $currentcontextlevel = false, $currentcontextid = false) {
+        if (!isset($node['active'])) {
+            if ($currentcontextlevel && !empty($node['contextlevel']) &&
+                    $currentcontextlevel == $node['contextlevel'] &&
+                    empty($currentcontextid)) {
+                // This is the active context level, we also checked that there
+                // is no default contextid set.
+                $node['active'] = true;
+            } else if ($currentcontextid && !empty($node['contextid']) &&
+                    $currentcontextid == $node['contextid']) {
+                $node['active'] = true;
+            } else {
+                $node['active'] = null;
+            }
+        }
+
+        if (!isset($node['branches'])) {
+            $node['branches'] = [];
+        } else {
+            foreach ($node['branches'] as $key => $childnode) {
+                $node['branches'][$key] = self::complete($childnode, $currentcontextlevel, $currentcontextid);
+            }
+        }
+
+        if (!isset($node['expandelement'])) {
+            $node['expandelement'] = null;
+        }
+
+        if (!isset($node['expandcontextid'])) {
+            $node['expandcontextid'] = null;
+        }
+
+        if (!isset($node['contextid'])) {
+            $node['contextid'] = null;
+        }
+
+        if (!isset($node['contextlevel'])) {
+            $node['contextlevel'] = null;
+        }
+
+        if (!isset($node['expanded'])) {
+            if (!empty($node['branches'])) {
+                $node['expanded'] = 1;
+            } else {
+                $node['expanded'] = 0;
+            }
+        }
+        return $node;
+    }
+
+    /**
+     * From a list of purpose persistents to a list of id => name purposes.
+     *
+     * @param \tool_dataprivacy\purpose $purposes
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return string[]
+     */
+    public static function purpose_options($purposes, $includenotset = true, $includeinherit = true) {
+        $options = self::base_options($includenotset, $includeinherit);
+        foreach ($purposes as $purpose) {
+            $options[$purpose->get('id')] = $purpose->get('name');
+        }
+
+        return $options;
+    }
+
+    /**
+     * From a list of category persistents to a list of id => name categories.
+     *
+     * @param \tool_dataprivacy\category $categories
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return string[]
+     */
+    public static function category_options($categories, $includenotset = true, $includeinherit = true) {
+        $options = self::base_options($includenotset, $includeinherit);
+        foreach ($categories as $category) {
+            $options[$category->get('id')] = $category->get('name');
+        }
+
+        return $options;
+    }
+
+    /**
+     * Base not set and inherit options.
+     *
+     * @param bool $includenotset
+     * @param bool $includeinherit
+     * @return array
+     */
+    private static function base_options($includenotset = true, $includeinherit = true) {
+
+        $options = [];
+
+        if ($includenotset) {
+            $options[\tool_dataprivacy\context_instance::NOTSET] = get_string('notset', 'tool_dataprivacy');
+        }
+
+        if ($includeinherit) {
+            $options[\tool_dataprivacy\context_instance::INHERIT] = get_string('inherit', 'tool_dataprivacy');
+        }
+
+        return $options;
+    }
+}
@@ -0,0 +1,96 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use dml_exception;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use single_select;
+use stdClass;
+use templatable;
+use tool_dataprivacy\api;
+use tool_dataprivacy\local\helper;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_requests_page implements renderable, templatable {
+
+    /** @var data_requests_table $table The data requests table. */
+    protected $table;
+
+    /** @var int[] $filters The applied filters. */
+    protected $filters = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param data_requests_table $table The data requests table.
+     * @param int[] $filters The applied filters.
+     */
+    public function __construct($table, $filters) {
+        $this->table = $table;
+        $this->filters = $filters;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws dml_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        $data = new stdClass();
+        $data->newdatarequesturl = new moodle_url('/admin/tool/dataprivacy/createdatarequest.php');
+        $data->newdatarequesturl->param('manage', true);
+
+        if (!is_https()) {
+            $httpwarningmessage = get_string('httpwarning', 'tool_dataprivacy');
+            $data->httpsite = array('message' => $httpwarningmessage, 'announce' => 1);
+        }
+
+        $url = new moodle_url('/admin/tool/dataprivacy/datarequests.php');
+        $filteroptions = helper::get_request_filter_options();
+        $filter = new request_filter($filteroptions, $this->filters, $url);
+        $data->filter = $filter->export_for_template($output);
+
+        ob_start();
+        $this->table->out(helper::DEFAULT_PAGE_SIZE, true);
+        $requests = ob_get_contents();
+        ob_end_clean();
+
+        $data->datarequests = $requests;
+        return $data;
+    }
+}
@@ -0,0 +1,293 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the class used for the displaying the data requests table.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/tablelib.php');
+
+use action_menu;
+use action_menu_link_secondary;
+use coding_exception;
+use dml_exception;
+use html_writer;
+use moodle_url;
+use stdClass;
+use table_sql;
+use tool_dataprivacy\api;
+use tool_dataprivacy\external\data_request_exporter;
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * The class for displaying the data requests table.
+ *
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class data_requests_table extends table_sql {
+
+    /** @var int The user ID. */
+    protected $userid = 0;
+
+    /** @var int[] The status filters. */
+    protected $statuses = [];
+
+    /** @var int[] The request type filters.  */
+    protected $types = [];
+
+    /** @var bool Whether this table is being rendered for managing data requests. */
+    protected $manage = false;
+
+    /** @var \tool_dataprivacy\data_request[] Array of data request persistents. */
+    protected $datarequests = [];
+
+    /**
+     * data_requests_table constructor.
+     *
+     * @param int $userid The user ID
+     * @param int[] $statuses
+     * @param int[] $types
+     * @param bool $manage
+     * @throws coding_exception
+     */
+    public function __construct($userid = 0, $statuses = [], $types = [], $manage = false) {
+        parent::__construct('data-requests-table');
+
+        $this->userid = $userid;
+        $this->statuses = $statuses;
+        $this->types = $types;
+        $this->manage = $manage;
+
+        $columnheaders = [
+            'type' => get_string('requesttype', 'tool_dataprivacy'),
+            'userid' => get_string('user', 'tool_dataprivacy'),
+            'timecreated' => get_string('daterequested', 'tool_dataprivacy'),
+            'requestedby' => get_string('requestby', 'tool_dataprivacy'),
+            'status' => get_string('requeststatus', 'tool_dataprivacy'),
+            'comments' => get_string('message', 'tool_dataprivacy'),
+            'actions' => '',
+        ];
+
+        $this->define_columns(array_keys($columnheaders));
+        $this->define_headers(array_values($columnheaders));
+        $this->no_sorting('actions');
+    }
+
+    /**
+     * The type column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_type($data) {
+        if ($this->manage) {
+            return $data->typenameshort;
+        }
+        return $data->typename;
+    }
+
+    /**
+     * The user column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_userid($data) {
+        $user = $data->foruser;
+        return html_writer::link($user->profileurl, $user->fullname, ['title' => get_string('viewprofile')]);
+    }
+
+    /**
+     * The context information column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_timecreated($data) {
+        return userdate($data->timecreated);
+    }
+
+    /**
+     * The requesting user's column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_requestedby($data) {
+        $user = $data->requestedbyuser;
+        return html_writer::link($user->profileurl, $user->fullname, ['title' => get_string('viewprofile')]);
+    }
+
+    /**
+     * The status column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     */
+    public function col_status($data) {
+        return html_writer::span($data->statuslabel, 'label ' . $data->statuslabelclass);
+    }
+
+    /**
+     * The comments column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_comments($data) {
+        return shorten_text($data->comments, 60);
+    }
+
+    /**
+     * The actions column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_actions($data) {
+        global $OUTPUT;
+
+        $requestid = $data->id;
+        $status = $data->status;
+
+        // Prepare actions.
+        $actions = [];
+
+        // View action.
+        $actionurl = new moodle_url('#');
+        $actiondata = ['data-action' => 'view', 'data-requestid' => $requestid];
+        $actiontext = get_string('viewrequest', 'tool_dataprivacy');
+        $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+
+        switch ($status) {
+            case api::DATAREQUEST_STATUS_PENDING:
+                // Add action to mark a general enquiry request as complete.
+                if ($data->type == api::DATAREQUEST_TYPE_OTHERS) {
+                    $actiondata['data-action'] = 'complete';
+                    $nameemail = (object)[
+                        'name' => $data->foruser->fullname,
+                        'email' => $data->foruser->email
+                    ];
+                    $actiondata['data-requestid'] = $data->id;
+                    $actiondata['data-replytoemail'] = get_string('nameemail', 'tool_dataprivacy', $nameemail);
+                    $actiontext = get_string('markcomplete', 'tool_dataprivacy');
+                    $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                }
+                break;
+            case api::DATAREQUEST_STATUS_AWAITING_APPROVAL:
+                // Approve.
+                $actiondata['data-action'] = 'approve';
+                $actiontext = get_string('approverequest', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+
+                // Deny.
+                $actiondata['data-action'] = 'deny';
+                $actiontext = get_string('denyrequest', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($actionurl, null, $actiontext, $actiondata);
+                break;
+            case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                $userid = $data->foruser->id;
+                $usercontext = \context_user::instance($userid, IGNORE_MISSING);
+                // If user has permission to view download link, show relevant action item.
+                if ($usercontext && api::can_download_data_request_for_user($userid, $data->requestedbyuser->id)) {
+                    $actions[] = api::get_download_link($usercontext, $requestid);
+                }
+                break;
+        }
+
+        $actionsmenu = new action_menu($actions);
+        $actionsmenu->set_menu_trigger(get_string('actions'));
+        $actionsmenu->set_owner_selector('request-actions-' . $requestid);
+        $actionsmenu->set_alignment(\action_menu::TL, \action_menu::BL);
+        $actionsmenu->set_constraint('[data-region=data-requests-table] > .no-overflow');
+
+        return $OUTPUT->render($actionsmenu);
+    }
+
+    /**
+     * Query the database for results to display in the table.
+     *
+     * @param int $pagesize size of page for paginated displayed table.
+     * @param bool $useinitialsbar do you want to use the initials bar.
+     * @throws dml_exception
+     * @throws coding_exception
+     */
+    public function query_db($pagesize, $useinitialsbar = true) {
+        global $PAGE;
+
+        // Set dummy page total until we fetch full result set.
+        $this->pagesize($pagesize, $pagesize + 1);
+
+        $sort = $this->get_sql_sort();
+
+        // Get data requests from the given conditions.
+        $datarequests = api::get_data_requests($this->userid, $this->statuses, $this->types, $sort,
+                $this->get_page_start(), $this->get_page_size());
+
+        // Count data requests from the given conditions.
+        $total = api::get_data_requests_count($this->userid, $this->statuses, $this->types);
+        $this->pagesize($pagesize, $total);
+
+        $this->rawdata = [];
+        $context = \context_system::instance();
+        $renderer = $PAGE->get_renderer('tool_dataprivacy');
+
+        foreach ($datarequests as $persistent) {
+            $this->datarequests[$persistent->get('id')] = $persistent;
+            $exporter = new data_request_exporter($persistent, ['context' => $context]);
+            $this->rawdata[] = $exporter->export($renderer);
+        }
+
+        // Set initial bars.
+        if ($useinitialsbar) {
+            $this->initialbars($total > $pagesize);
+        }
+    }
+
+    /**
+     * Override default implementation to display a more meaningful information to the user.
+     */
+    public function print_nothing_to_display() {
+        global $OUTPUT;
+        echo $this->render_reset_button();
+        $this->print_initials_bar();
+        if (!empty($this->statuses) || !empty($this->types)) {
+            $message = get_string('nodatarequestsmatchingfilter', 'tool_dataprivacy');
+        } else {
+            $message = get_string('nodatarequests', 'tool_dataprivacy');
+        }
+        echo $OUTPUT->notification($message, 'warning');
+    }
+
+    /**
+     * Override the table's show_hide_link method to prevent the show/hide links from rendering.
+     *
+     * @param string $column the column name, index into various names.
+     * @param int $index numerical index of the column.
+     * @return string HTML fragment.
+     */
+    protected function show_hide_link($column, $index) {
+        return '';
+    }
+}
@@ -0,0 +1,284 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the class used for the displaying the expired contexts table.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/tablelib.php');
+
+use coding_exception;
+use context_helper;
+use dml_exception;
+use Exception;
+use html_writer;
+use pix_icon;
+use stdClass;
+use table_sql;
+use tool_dataprivacy\api;
+use tool_dataprivacy\expired_context;
+use tool_dataprivacy\external\purpose_exporter;
+use tool_dataprivacy\purpose;
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * The class for displaying the expired contexts table.
+ *
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_contexts_table extends table_sql {
+
+    /** @var int The context level acting as a filter for this table. */
+    protected $contextlevel = null;
+
+    /**
+     * @var bool $selectall Has the user selected all users on the page? True by default.
+     */
+    protected $selectall = true;
+
+    /** @var purpose[] Array of purposes mapped to the contexts. */
+    protected $purposes = [];
+
+    /**
+     * expired_contexts_table constructor.
+     *
+     * @param int|null $contextlevel
+     * @throws coding_exception
+     */
+    public function __construct($contextlevel = null) {
+        parent::__construct('expired-contexts-table');
+
+        $this->contextlevel = $contextlevel;
+
+        $columnheaders = [
+            'name' => get_string('name'),
+            'info' => get_string('info'),
+            'purpose' => get_string('purpose', 'tool_dataprivacy'),
+            'category' => get_string('category', 'tool_dataprivacy'),
+            'retentionperiod' => get_string('retentionperiod', 'tool_dataprivacy'),
+            'timecreated' => get_string('expiry', 'tool_dataprivacy'),
+        ];
+        $checkboxattrs = [
+            'title' => get_string('selectall'),
+            'data-action' => 'selectall'
+        ];
+        $columnheaders['select'] = html_writer::checkbox('selectall', 1, true, null, $checkboxattrs);
+
+        $this->define_columns(array_keys($columnheaders));
+        $this->define_headers(array_values($columnheaders));
+        $this->no_sorting('name');
+        $this->no_sorting('select');
+        $this->no_sorting('info');
+        $this->no_sorting('purpose');
+        $this->no_sorting('category');
+        $this->no_sorting('retentionperiod');
+
+        // Make this table sorted by first name by default.
+        $this->sortable(true, 'timecreated');
+    }
+
+    /**
+     * The context name column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_name($data) {
+        global $OUTPUT;
+        $context = context_helper::instance_by_id($data->contextid);
+        $parent = $context->get_parent_context();
+        $contextdata = (object)[
+            'name' => $context->get_context_name(false, true),
+            'parent' => $parent->get_context_name(false, true),
+        ];
+        $fullcontexts = $context->get_parent_contexts(true);
+        $contextsinpath = [];
+        foreach ($fullcontexts as $contextinpath) {
+            $contextsinpath[] = $contextinpath->get_context_name(false, true);
+        }
+        $infoicon = new pix_icon('i/info', implode(' / ', array_reverse($contextsinpath)));
+        $infoiconhtml = $OUTPUT->render($infoicon);
+        $name = html_writer::span(get_string('nameandparent', 'tool_dataprivacy', $contextdata), 'm-r-1');
+
+        return  $name . $infoiconhtml;
+    }
+
+    /**
+     * The context information column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_info($data) {
+        global $OUTPUT;
+
+        $context = context_helper::instance_by_id($data->contextid);
+
+        $children = $context->get_child_contexts();
+        if (empty($children)) {
+            return get_string('none');
+        } else {
+            $childnames = [];
+            foreach ($children as $child) {
+                $childnames[] = $child->get_context_name(false, true);
+            }
+            $infoicon = new pix_icon('i/info', implode(', ', $childnames));
+            $infoiconhtml = $OUTPUT->render($infoicon);
+            $name = html_writer::span(get_string('nchildren', 'tool_dataprivacy', count($children)), 'm-r-1');
+
+            return  $name . $infoiconhtml;
+        }
+    }
+
+    /**
+     * The category name column.
+     *
+     * @param stdClass $data The row data.
+     * @return mixed
+     * @throws coding_exception
+     * @throws dml_exception
+     */
+    public function col_category($data) {
+        $context = context_helper::instance_by_id($data->contextid);
+        $category = api::get_effective_context_category($context);
+
+        return s($category->get('name'));
+    }
+
+    /**
+     * The purpose column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     * @throws coding_exception
+     */
+    public function col_purpose($data) {
+        $purpose = $this->purposes[$data->contextid];
+
+        return s($purpose->get('name'));
+    }
+
+    /**
+     * The retention period column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     * @throws Exception
+     */
+    public function col_retentionperiod($data) {
+        global $PAGE;
+
+        $purpose = $this->purposes[$data->contextid];
+
+        $exporter = new purpose_exporter($purpose, ['context' => \context_system::instance()]);
+        $exportedpurpose = $exporter->export($PAGE->get_renderer('core'));
+
+        return $exportedpurpose->formattedretentionperiod;
+    }
+
+    /**
+     * The timecreated a.k.a. the context expiry date column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_timecreated($data) {
+        return userdate($data->timecreated);
+    }
+
+    /**
+     * Generate the select column.
+     *
+     * @param stdClass $data The row data.
+     * @return string
+     */
+    public function col_select($data) {
+        $id = $data->id;
+        return html_writer::checkbox('expiredcontext_' . $id, $id, $this->selectall, '', ['class' => 'selectcontext']);
+    }
+
+    /**
+     * Query the database for results to display in the table.
+     *
+     * @param int $pagesize size of page for paginated displayed table.
+     * @param bool $useinitialsbar do you want to use the initials bar.
+     * @throws dml_exception
+     * @throws coding_exception
+     */
+    public function query_db($pagesize, $useinitialsbar = true) {
+        // Only count expired contexts that are awaiting confirmation.
+        $total = expired_context::get_record_count_by_contextlevel($this->contextlevel, expired_context::STATUS_EXPIRED);
+        $this->pagesize($pagesize, $total);
+
+        $sort = $this->get_sql_sort();
+        if (empty($sort)) {
+            $sort = 'timecreated';
+        }
+
+        // Only load expired contexts that are awaiting confirmation.
+        $expiredcontexts = expired_context::get_records_by_contextlevel($this->contextlevel, expired_context::STATUS_EXPIRED,
+            $sort, $this->get_page_start(), $this->get_page_size());
+        $this->rawdata = [];
+        foreach ($expiredcontexts as $persistent) {
+            $data = $persistent->to_record();
+
+            $context = context_helper::instance_by_id($data->contextid);
+
+            $purpose = api::get_effective_context_purpose($context);
+            $this->purposes[$data->contextid] = $purpose;
+            $this->rawdata[] = $data;
+        }
+
+        // Set initial bars.
+        if ($useinitialsbar) {
+            $this->initialbars($total > $pagesize);
+        }
+    }
+
+    /**
+     * Override default implementation to display a more meaningful information to the user.
+     */
+    public function print_nothing_to_display() {
+        global $OUTPUT;
+        echo $this->render_reset_button();
+        $this->print_initials_bar();
+        echo $OUTPUT->notification(get_string('noexpiredcontexts', 'tool_dataprivacy'), 'warning');
+    }
+
+    /**
+     * Override the table's show_hide_link method to prevent the show/hide link for the select column from rendering.
+     *
+     * @param string $column the column name, index into various names.
+     * @param int $index numerical index of the column.
+     * @return string HTML fragment.
+     */
+    protected function show_hide_link($column, $index) {
+        if ($index < 6) {
+            return parent::show_hide_link($column, $index);
+        }
+        return '';
+    }
+}
@@ -0,0 +1,165 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use action_menu;
+use action_menu_link_secondary;
+use coding_exception;
+use context_user;
+use moodle_exception;
+use moodle_url;
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+use tool_dataprivacy\external\data_request_exporter;
+
+/**
+ * Class containing data for a user's data requests.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class my_data_requests_page implements renderable, templatable {
+
+    /** @var array $requests List of data requests. */
+    protected $requests = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param data_request[] $requests
+     */
+    public function __construct($requests) {
+        $this->requests = $requests;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function export_for_template(renderer_base $output) {
+        global $USER;
+
+        $data = new stdClass();
+        $data->newdatarequesturl = new moodle_url('/admin/tool/dataprivacy/createdatarequest.php');
+
+        if (!is_https()) {
+            $httpwarningmessage = get_string('httpwarning', 'tool_dataprivacy');
+            $data->httpsite = array('message' => $httpwarningmessage, 'announce' => 1);
+        }
+
+        $requests = [];
+        foreach ($this->requests as $request) {
+            $requestid = $request->get('id');
+            $status = $request->get('status');
+            $userid = $request->get('userid');
+            $type = $request->get('type');
+
+            $usercontext = context_user::instance($userid, IGNORE_MISSING);
+            if (!$usercontext) {
+                // Use the context system.
+                $outputcontext = \context_system::instance();
+            } else {
+                $outputcontext = $usercontext;
+            }
+
+            $requestexporter = new data_request_exporter($request, ['context' => $outputcontext]);
+            $item = $requestexporter->export($output);
+
+            $self = $request->get('userid') == $USER->id;
+            if (!$self) {
+                // Append user name if it differs from $USER.
+                $a = (object)['typename' => $item->typename, 'user' => $item->foruser->fullname];
+                $item->typename = get_string('requesttypeuser', 'tool_dataprivacy', $a);
+            }
+
+            $candownload = false;
+            $cancancel = true;
+            switch ($status) {
+                case api::DATAREQUEST_STATUS_COMPLETE:
+                    $item->statuslabelclass = 'label-success';
+                    $item->statuslabel = get_string('statuscomplete', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_DOWNLOAD_READY:
+                    $item->statuslabelclass = 'label-success';
+                    $item->statuslabel = get_string('statusready', 'tool_dataprivacy');
+                    $cancancel = false;
+                    $candownload = true;
+
+                    if ($usercontext) {
+                        $candownload = api::can_download_data_request_for_user(
+                                $request->get('userid'), $request->get('requestedby'));
+                    }
+                    break;
+                case api::DATAREQUEST_STATUS_DELETED:
+                    $item->statuslabelclass = 'label-success';
+                    $item->statuslabel = get_string('statusdeleted', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_EXPIRED:
+                    $item->statuslabelclass = 'label-default';
+                    $item->statuslabel = get_string('statusexpired', 'tool_dataprivacy');
+                    $item->statuslabeltitle = get_string('downloadexpireduser', 'tool_dataprivacy');
+                    $cancancel = false;
+                    break;
+                case api::DATAREQUEST_STATUS_CANCELLED:
+                case api::DATAREQUEST_STATUS_REJECTED:
+                    $cancancel = false;
+                    break;
+            }
+
+            // Prepare actions.
+            $actions = [];
+            if ($cancancel) {
+                $cancelurl = new moodle_url('#');
+                $canceldata = ['data-action' => 'cancel', 'data-requestid' => $requestid];
+                $canceltext = get_string('cancelrequest', 'tool_dataprivacy');
+                $actions[] = new action_menu_link_secondary($cancelurl, null, $canceltext, $canceldata);
+            }
+            if ($candownload && $usercontext) {
+                $actions[] = api::get_download_link($usercontext, $requestid);
+            }
+            if (!empty($actions)) {
+                $actionsmenu = new action_menu($actions);
+                $actionsmenu->set_menu_trigger(get_string('actions'));
+                $actionsmenu->set_owner_selector('request-actions-' . $requestid);
+                $actionsmenu->set_alignment(\action_menu::TL, \action_menu::BL);
+                $item->actions = $actionsmenu->export_for_template($output);
+            }
+
+            $requests[] = $item;
+        }
+        $data->requests = $requests;
+        return $data;
+    }
+}
@@ -0,0 +1,88 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Purposes renderable.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+defined('MOODLE_INTERNAL') || die();
+
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+use tool_dataprivacy\external\purpose_exporter;
+
+/**
+ * Class containing the purposes page renderable.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purposes extends crud_element implements renderable, templatable {
+
+    /** @var array $purposes All system purposes. */
+    protected $purposes = [];
+
+    /**
+     * Construct this renderable.
+     *
+     * @param \tool_dataprivacy\purpose[] $purposes
+     */
+    public function __construct($purposes) {
+        $this->purposes = $purposes;
+    }
+
+    /**
+     * Export this data so it can be used as the context for a mustache template.
+     *
+     * @param renderer_base $output
+     * @return stdClass
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+
+        $context = \context_system::instance();
+
+        $PAGE->requires->js_call_amd('tool_dataprivacy/purposesactions', 'init');
+        $PAGE->requires->js_call_amd('tool_dataprivacy/add_purpose', 'getInstance', [$context->id]);
+
+        $data = new stdClass();
+
+        // Navigation links.
+        $data->navigation = [];
+        $navigationlinks = $this->get_navigation();
+        foreach ($navigationlinks as $navlink) {
+            $data->navigation[] = $navlink->export_for_template($output);
+        }
+
+        $data->purposes = [];
+        foreach ($this->purposes as $purpose) {
+            $exporter = new purpose_exporter($purpose, ['context' => \context_system::instance()]);
+            $exportedpurpose = $exporter->export($output);
+
+            $actionmenu = $this->action_menu('purpose', $exportedpurpose, $purpose);
+            $exportedpurpose->actions = $actionmenu->export_for_template($output);
+            $data->purposes[] = $exportedpurpose;
+        }
+
+        return $data;
+    }
+}
@@ -0,0 +1,142 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Renderer class for tool_dataprivacy
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\output;
+
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use html_writer;
+use moodle_exception;
+use plugin_renderer_base;
+
+/**
+ * Renderer class for tool_dataprivacy.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class renderer extends plugin_renderer_base {
+
+    /**
+     * Render the user's data requests page.
+     *
+     * @param my_data_requests_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_my_data_requests_page(my_data_requests_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/my_data_requests', $data);
+    }
+
+    /**
+     * Render the contact DPO link.
+     *
+     * @param string $replytoemail The Reply-to email address
+     * @return string The HTML for the link.
+     * @throws coding_exception
+     */
+    public function render_contact_dpo_link($replytoemail) {
+        $params = [
+            'data-action' => 'contactdpo',
+            'data-replytoemail' => $replytoemail,
+            'class' => 'contactdpo'
+        ];
+        return html_writer::link('#', get_string('contactdataprotectionofficer', 'tool_dataprivacy'), $params);
+    }
+
+    /**
+     * Render the data requests page for the DPO.
+     *
+     * @param data_requests_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_requests_page(data_requests_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_requests', $data);
+    }
+
+    /**
+     * Render the data registry.
+     *
+     * @param data_registry_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_registry_page(data_registry_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_registry', $data);
+    }
+
+    /**
+     * Render the data compliance registry.
+     *
+     * @param data_registry_compliance_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_registry_compliance_page(data_registry_compliance_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_registry_compliance', $data);
+    }
+
+    /**
+     * Render the purposes management page.
+     *
+     * @param purposes $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_purposes(purposes $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/purposes', $data);
+    }
+
+    /**
+     * Render the categories management page.
+     *
+     * @param categories $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_categories(categories $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/categories', $data);
+    }
+
+    /**
+     * Render the review page for the deletion of expired contexts.
+     *
+     * @param data_deletion_page $page
+     * @return string html for the page
+     * @throws moodle_exception
+     */
+    public function render_data_deletion_page(data_deletion_page $page) {
+        $data = $page->export_for_template($this);
+        return parent::render_from_template('tool_dataprivacy/data_deletion', $data);
+    }
+}
@@ -0,0 +1,98 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class containing the filter options data for rendering the autocomplete element for the data requests page.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy\output;
+
+use moodle_url;
+use renderable;
+use renderer_base;
+use stdClass;
+use templatable;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class containing the filter options data for rendering the autocomplete element for the data requests page.
+ *
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class request_filter implements renderable, templatable {
+
+    /** @var array $filteroptions The filter options. */
+    protected $filteroptions;
+
+    /** @var array $selectedoptions The list of selected filter option values. */
+    protected $selectedoptions;
+
+    /** @var moodle_url|string $baseurl The url with params needed to call up this page. */
+    protected $baseurl;
+
+    /**
+     * request_filter constructor.
+     *
+     * @param array $filteroptions The filter options.
+     * @param array $selectedoptions The list of selected filter option values.
+     * @param string|moodle_url $baseurl The url with params needed to call up this page.
+     */
+    public function __construct($filteroptions, $selectedoptions, $baseurl = null) {
+        $this->filteroptions = $filteroptions;
+        $this->selectedoptions = $selectedoptions;
+        if (!empty($baseurl)) {
+            $this->baseurl = new moodle_url($baseurl);
+        }
+    }
+
+    /**
+     * Function to export the renderer data in a format that is suitable for a mustache template.
+     *
+     * @param renderer_base $output Used to do a final render of any components that need to be rendered for export.
+     * @return stdClass|array
+     */
+    public function export_for_template(renderer_base $output) {
+        global $PAGE;
+        $data = new stdClass();
+        if (empty($this->baseurl)) {
+            $this->baseurl = $PAGE->url;
+        }
+        $data->action = $this->baseurl->out(false);
+
+        foreach ($this->selectedoptions as $option) {
+            if (!isset($this->filteroptions[$option])) {
+                $this->filteroptions[$option] = $option;
+            }
+        }
+
+        $data->filteroptions = [];
+        foreach ($this->filteroptions as $value => $label) {
+            $selected = in_array($value, $this->selectedoptions);
+            $filteroption = (object)[
+                'value' => $value,
+                'label' => $label
+            ];
+            $filteroption->selected = $selected;
+            $data->filteroptions[] = $filteroption;
+        }
+        return $data;
+    }
+}
@@ -0,0 +1,85 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Page helper.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy;
+use context_system;
+use moodle_url;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Page helper.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class page_helper {
+
+    /**
+     * Sets up $PAGE for data privacy admin pages.
+     *
+     * @param moodle_url $url The page URL.
+     * @param string $title The page's title.
+     * @param string $attachtoparentnode The parent navigation node where this page can be accessed from.
+     * @param string $requiredcapability The required capability to view this page.
+     */
+    public static function setup(moodle_url $url, $title, $attachtoparentnode = '',
+                                 $requiredcapability = 'tool/dataprivacy:managedataregistry') {
+        global $PAGE;
+
+        $context = context_system::instance();
+
+        require_login();
+        if (isguestuser()) {
+            print_error('noguest');
+        }
+
+        // TODO Check that data privacy is enabled.
+        require_capability($requiredcapability, $context);
+
+        $PAGE->navigation->override_active_url($url);
+
+        $PAGE->set_url($url);
+        $PAGE->set_context($context);
+        $PAGE->set_pagelayout('admin');
+        $PAGE->set_title($title);
+        $PAGE->set_heading($title);
+
+        // If necessary, override the settings navigation to add this page into the breadcrumb navigation.
+        if ($attachtoparentnode) {
+            if ($siteadmin = $PAGE->settingsnav->find('root', \navigation_node::TYPE_SITE_ADMIN)) {
+                $PAGE->navbar->add($siteadmin->get_content(), $siteadmin->action());
+            }
+            if ($dataprivacy = $PAGE->settingsnav->find('privacy', \navigation_node::TYPE_SETTING)) {
+                $PAGE->navbar->add($dataprivacy->get_content(), $dataprivacy->action());
+            }
+            if ($dataregistry = $PAGE->settingsnav->find($attachtoparentnode, \navigation_node::TYPE_SETTING)) {
+                $PAGE->navbar->add($dataregistry->get_content(), $dataregistry->action());
+            }
+
+            $PAGE->navbar->add($title, $url);
+        }
+    }
+}
@@ -0,0 +1,204 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy class for requesting user data.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\privacy;
+defined('MOODLE_INTERNAL') || die();
+
+use coding_exception;
+use context;
+use context_user;
+use core_privacy\local\metadata\collection;
+use core_privacy\local\request\approved_contextlist;
+use core_privacy\local\request\contextlist;
+use core_privacy\local\request\helper;
+use core_privacy\local\request\transform;
+use core_privacy\local\request\writer;
+use dml_exception;
+use stdClass;
+use tool_dataprivacy\api;
+use tool_dataprivacy\local\helper as tool_helper;
+
+/**
+ * Privacy class for requesting user data.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements
+        // This tool stores user data.
+        \core_privacy\local\metadata\provider,
+
+        // This tool may provide access to and deletion of user data.
+        \core_privacy\local\request\plugin\provider,
+
+        // This plugin has some sitewide user preferences to export.
+        \core_privacy\local\request\user_preference_provider {
+    /**
+     * Returns meta data about this system.
+     *
+     * @param   collection $collection The initialised collection to add items to.
+     * @return  collection     A listing of user data stored through this system.
+     */
+    public static function get_metadata(collection $collection) {
+        $collection->add_database_table(
+            'tool_dataprivacy_request',
+            [
+                'comments' => 'privacy:metadata:request:comments',
+                'userid' => 'privacy:metadata:request:userid',
+                'requestedby' => 'privacy:metadata:request:requestedby',
+                'dpocomment' => 'privacy:metadata:request:dpocomment',
+                'timecreated' => 'privacy:metadata:request:timecreated'
+            ],
+            'privacy:metadata:request'
+        );
+
+        $collection->add_user_preference(tool_helper::PREF_REQUEST_FILTERS,
+            'privacy:metadata:preference:tool_dataprivacy_request-filters');
+
+        return $collection;
+    }
+
+    /**
+     * Get the list of contexts that contain user information for the specified user.
+     *
+     * @param   int $userid The user to search.
+     * @return  contextlist   $contextlist  The contextlist containing the list of contexts used in this plugin.
+     */
+    public static function get_contexts_for_userid($userid) {
+        $sql = "SELECT id
+                  FROM {context}
+                 WHERE instanceid = :userid
+                       AND contextlevel = :contextlevel";
+
+        $contextlist = new contextlist();
+        $contextlist->set_component('tool_dataprivacy');
+        $contextlist->add_from_sql($sql, ['userid' => $userid, 'contextlevel' => CONTEXT_USER]);
+        return $contextlist;
+    }
+
+    /**
+     * Export all user data for the specified user, in the specified contexts.
+     *
+     * @param approved_contextlist $contextlist The approved contexts to export information for.
+     * @throws coding_exception
+     * @throws dml_exception
+     * @throws \moodle_exception
+     */
+    public static function export_user_data(approved_contextlist $contextlist) {
+        if (empty($contextlist->count())) {
+            return;
+        }
+
+        $user = $contextlist->get_user();
+        $datarequests = api::get_data_requests($user->id);
+        $context = context_user::instance($user->id);
+        $contextdatatowrite = [];
+        foreach ($datarequests as $request) {
+            $record = $request->to_record();
+            $data = new stdClass();
+
+            // The user ID that made the request/the request is made for.
+            if ($record->requestedby != $record->userid) {
+                if ($user->id != $record->requestedby) {
+                    // This request is done by this user for another user.
+                    $data->userid = fullname($user);
+                } else if ($user->id != $record->userid) {
+                    // This request was done by another user on behalf of this user.
+                    $data->requestedby = fullname($user);
+                }
+            }
+
+            // Request type.
+            $data->type = tool_helper::get_shortened_request_type_string($record->type);
+            // Status.
+            $data->status = tool_helper::get_request_status_string($record->status);
+            // Comments.
+            $data->comments = $record->comments;
+            // The DPO's comment about this request.
+            $data->dpocomment = $record->dpocomment;
+            // The date and time this request was lodged.
+            $data->timecreated = transform::datetime($record->timecreated);
+            $contextdatatowrite[] = $data;
+        }
+
+        // ...{User context} / Privacy and policies / Data requests.
+        $subcontext = [
+            get_string('privacyandpolicies', 'admin'),
+            get_string('datarequests', 'tool_dataprivacy'),
+        ];
+        writer::with_context($context)->export_data($subcontext, (object)$contextdatatowrite);
+
+        // Write generic module intro files.
+        helper::export_context_files($context, $user);
+    }
+
+    /**
+     * Delete all data for all users in the specified context.
+     *
+     * @param context $context The specific context to delete data for.
+     */
+    public static function delete_data_for_all_users_in_context(context $context) {
+    }
+
+    /**
+     * Delete all user data for the specified user, in the specified contexts.
+     *
+     * @param   approved_contextlist $contextlist The approved contexts and user information to delete information for.
+     */
+    public static function delete_data_for_user(approved_contextlist $contextlist) {
+    }
+
+    /**
+     * Export all user preferences for the plugin.
+     *
+     * @param   int $userid The userid of the user whose data is to be exported.
+     */
+    public static function export_user_preferences($userid) {
+        $preffilter = get_user_preferences(tool_helper::PREF_REQUEST_FILTERS, null, $userid);
+        if ($preffilter !== null) {
+            $filters = json_decode($preffilter);
+            $descriptions = [];
+            foreach ($filters as $filter) {
+                list($category, $value) = explode(':', $filter);
+                $option = new stdClass();
+                switch($category) {
+                    case tool_helper::FILTER_TYPE:
+                        $option->category = get_string('requesttype', 'tool_dataprivacy');
+                        $option->name = tool_helper::get_shortened_request_type_string($value);
+                        break;
+                    case tool_helper::FILTER_STATUS:
+                        $option->category = get_string('requeststatus', 'tool_dataprivacy');
+                        $option->name = tool_helper::get_request_status_string($value);
+                        break;
+                }
+                $descriptions[] = get_string('filteroption', 'tool_dataprivacy', $option);
+            }
+            // Export the filter preference as comma-separated values and text descriptions.
+            $values = implode(', ', $filters);
+            $descriptionstext = implode(', ', $descriptions);
+            writer::export_user_preference('tool_dataprivacy', tool_helper::PREF_REQUEST_FILTERS, $values, $descriptionstext);
+        }
+    }
+}
@@ -0,0 +1,183 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Class for loading/storing data purposes from the DB.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+use stdClass;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Class for loading/storing data purposes from the DB.
+ *
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class purpose extends \core\persistent {
+
+    /**
+     * Database table.
+     */
+    const TABLE = 'tool_dataprivacy_purpose';
+
+    /** Items under GDPR Article 6.1. */
+    const GDPR_ART_6_1_ITEMS = ['a', 'b', 'c', 'd', 'e', 'f'];
+
+    /** Items under GDPR Article 9.2. */
+    const GDPR_ART_9_2_ITEMS = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'];
+
+    /**
+     * Extended constructor to fetch from the cache if available.
+     *
+     * @param int $id If set, this is the id of an existing record, used to load the data.
+     * @param stdClass $record If set will be passed to {@link self::from_record()}.
+     */
+    public function __construct($id = 0, stdClass $record = null) {
+        global $CFG;
+
+        if ($id) {
+            $cache = \cache::make('tool_dataprivacy', 'purpose');
+            if ($data = $cache->get($id)) {
+
+                // Replicate self::read.
+                $this->from_record($data);
+
+                // Validate the purpose record.
+                $this->validate();
+
+                // Now replicate the parent constructor.
+                if (!empty($record)) {
+                    $this->from_record($record);
+                }
+                if ($CFG->debugdeveloper) {
+                    $this->verify_protected_methods();
+                }
+                return;
+            }
+        }
+        parent::__construct($id, $record);
+    }
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return array(
+            'name' => array(
+                'type' => PARAM_TEXT,
+                'description' => 'The purpose name.',
+            ),
+            'description' => array(
+                'type' => PARAM_RAW,
+                'description' => 'The purpose description.',
+                'null' => NULL_ALLOWED,
+                'default' => '',
+            ),
+            'descriptionformat' => array(
+                'choices' => array(FORMAT_HTML, FORMAT_MOODLE, FORMAT_PLAIN, FORMAT_MARKDOWN),
+                'type' => PARAM_INT,
+                'default' => FORMAT_HTML
+            ),
+            'lawfulbases' => array(
+                'type' => PARAM_TEXT,
+                'description' => 'Comma-separated IDs matching records in tool_dataprivacy_lawfulbasis.',
+            ),
+            'sensitivedatareasons' => array(
+                'type' => PARAM_TEXT,
+                'description' => 'Comma-separated IDs matching records in tool_dataprivacy_sensitive',
+                'null' => NULL_ALLOWED,
+                'default' => ''
+            ),
+            'retentionperiod' => array(
+                'type' => PARAM_ALPHANUM,
+                'description' => 'Retention period. ISO_8601 durations format (as in DateInterval format).',
+                'default' => '',
+            ),
+            'protected' => array(
+                'type' => PARAM_INT,
+                'description' => 'Data retention with higher precedent over user\'s request to be forgotten.',
+                'default' => '0',
+            ),
+        );
+    }
+
+    /**
+     * Adds the new record to the cache.
+     *
+     * @return null
+     */
+    protected function after_create() {
+        $cache = \cache::make('tool_dataprivacy', 'purpose');
+        $cache->set($this->get('id'), $this->to_record());
+    }
+
+    /**
+     * Updates the cache record.
+     *
+     * @param bool $result
+     * @return null
+     */
+    protected function after_update($result) {
+        $cache = \cache::make('tool_dataprivacy', 'purpose');
+        $cache->set($this->get('id'), $this->to_record());
+    }
+
+    /**
+     * Removes unnecessary stuff from db.
+     *
+     * @return null
+     */
+    protected function before_delete() {
+        $cache = \cache::make('tool_dataprivacy', 'purpose');
+        $cache->delete($this->get('id'));
+    }
+
+    /**
+     * Is this purpose used?.
+     *
+     * @return null
+     */
+    public function is_used() {
+
+        if (\tool_dataprivacy\contextlevel::is_purpose_used($this->get('id')) ||
+                \tool_dataprivacy\context_instance::is_purpose_used($this->get('id'))) {
+            return true;
+        }
+
+        $pluginconfig = get_config('tool_dataprivacy');
+        $levels = \context_helper::get_all_levels();
+        foreach ($levels as $level => $classname) {
+
+            list($purposevar, $unused) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+            if (!empty($pluginconfig->{$purposevar}) && $pluginconfig->{$purposevar} == $this->get('id')) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}
@@ -0,0 +1,70 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the request_contextlist persistent.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_dataprivacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+use core\persistent;
+
+/**
+ * The request_contextlist persistent.
+ *
+ * @copyright  2018 Jake Dallimore <jrhdallimore@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class request_contextlist extends persistent {
+
+    /** The table name this persistent object maps to. */
+    const TABLE = 'tool_dataprivacy_rqst_ctxlst';
+
+    /**
+     * Return the definition of the properties of this model.
+     *
+     * @return array
+     */
+    protected static function define_properties() {
+        return [
+            'requestid' => [
+                'type' => PARAM_INT
+            ],
+            'contextlistid' => [
+                'type' => PARAM_INT
+            ]
+        ];
+    }
+
+    /**
+     * Creates a new relation, but does not persist it.
+     *
+     * @param int $requestid
+     * @param int $contextlistid
+     * @return $this
+     * @throws \coding_exception
+     */
+    public static function create_relation($requestid, $contextlistid) {
+        $requestcontextlist = new request_contextlist();
+        return $requestcontextlist->set('requestid', $requestid)
+            ->set('contextlistid', $contextlistid);
+    }
+}
@@ -0,0 +1,69 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Scheduled task to delete expired context instances once they are approved for deletion.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\task;
+
+use coding_exception;
+use core\task\scheduled_task;
+use tool_dataprivacy\api;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Scheduled task to delete expired context instances once they are approved for deletion.
+ *
+ * @package     tool_dataprivacy
+ * @copyright   2018 David Monllao
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class delete_expired_contexts extends scheduled_task {
+
+    /**
+     * Returns the task name.
+     *
+     * @return string
+     */
+    public function get_name() {
+        return get_string('deleteexpiredcontextstask', 'tool_dataprivacy');
+    }
+
+    /**
+     * Run the task to delete context instances based on their retention periods.
+     *
+     */
+    public function execute() {
+        $manager = new \tool_dataprivacy\expired_course_related_contexts();
+        $deleted = $manager->delete();
+        if ($deleted > 0) {
+            mtrace($deleted . ' course-related contexts have been deleted');
+        }
+        $manager = new \tool_dataprivacy\expired_user_contexts();
+        $deleted = $manager->delete();
+        if ($deleted > 0) {
+            mtrace($deleted . ' user contexts have been deleted');
+        }
+    }
+}
@@ -0,0 +1,67 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Scheduled task to delete files and update statuses of expired data requests.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Michael Hawkins
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\task;
+
+use coding_exception;
+use core\task\scheduled_task;
+use tool_dataprivacy\api;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Scheduled task to delete files and update request statuses once they expire.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Michael Hawkins
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class delete_expired_requests extends scheduled_task {
+
+    /**
+     * Returns the task name.
+     *
+     * @return string
+     */
+    public function get_name() {
+        return get_string('deleteexpireddatarequeststask', 'tool_dataprivacy');
+    }
+
+    /**
+     * Run the task to delete expired data request files and update request statuses.
+     *
+     */
+    public function execute() {
+        $expiredrequests = \tool_dataprivacy\data_request::get_expired_requests();
+        $deletecount = count($expiredrequests);
+
+        if ($deletecount > 0) {
+            \tool_dataprivacy\data_request::expire($expiredrequests);
+
+            mtrace($deletecount . ' expired completed data requests have been deleted');
+        }
+    }
+}
@@ -0,0 +1,68 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Scheduled task to flag contexts as expired.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\task;
+
+use coding_exception;
+use core\task\scheduled_task;
+use tool_dataprivacy\api;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+/**
+ * Scheduled task to flag contexts as expired.
+ *
+ * @package     tool_dataprivacy
+ * @copyright   2018 David Monllao
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class expired_retention_period extends scheduled_task {
+
+    /**
+     * Returns the task name.
+     *
+     * @return string
+     */
+    public function get_name() {
+        return get_string('expiredretentionperiodtask', 'tool_dataprivacy');
+    }
+
+    /**
+     * Run the task to flag context instances as expired.
+     */
+    public function execute() {
+        $manager = new \tool_dataprivacy\expired_course_related_contexts();
+        $flagged = $manager->flag_expired();
+        if ($flagged > 0) {
+            mtrace($flagged . ' course-related contexts have been flagged as expired');
+        }
+        $manager = new \tool_dataprivacy\expired_user_contexts();
+        $flagged = $manager->flag_expired();
+        if ($flagged > 0) {
+            mtrace($flagged . ' user contexts have been flagged as expired');
+        }
+    }
+}
@@ -0,0 +1,122 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Adhoc task that processes a data request and prepares the user's relevant contexts for review.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\task;
+
+use coding_exception;
+use core\task\adhoc_task;
+use moodle_exception;
+use tool_dataprivacy\api;
+use tool_dataprivacy\contextlist_context;
+use tool_dataprivacy\data_request;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class that processes a data request and prepares the user's relevant contexts for review.
+ *
+ * Custom data accepted:
+ * - requestid -> The ID of the data request to be processed.
+ *
+ * @package     tool_dataprivacy
+ * @copyright   2018 Jun Pataleta
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class initiate_data_request_task extends adhoc_task {
+
+    /**
+     * Run the task to initiate the data request process.
+     *
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function execute() {
+        global $CFG;
+
+        require_once($CFG->dirroot . "/{$CFG->admin}/tool/dataprivacy/lib.php");
+
+        if (!isset($this->get_custom_data()->requestid)) {
+            throw new coding_exception('The custom data \'requestid\' is required.');
+        }
+        $requestid = $this->get_custom_data()->requestid;
+
+        $datarequest = new data_request($requestid);
+
+        // Check if this request still needs to be processed. e.g. The user might have cancelled it before this task has run.
+        $status = $datarequest->get('status');
+        if (!api::is_active($status)) {
+            mtrace('Request ' . $requestid . ' with status ' . $status . ' doesn\'t need to be processed. Skipping...');
+            return;
+        }
+
+        $requestedby = $datarequest->get('requestedby');
+        $valid = true;
+        $comment = '';
+        $foruser = $datarequest->get('userid');
+        if ($foruser != $requestedby) {
+            if (!$valid = api::can_create_data_request_for_user($foruser, $requestedby)) {
+                $params = (object)[
+                    'requestedby' => $requestedby,
+                    'userid' => $foruser
+                ];
+                $comment = get_string('errornocapabilitytorequestforothers', 'tool_dataprivacy', $params);
+                mtrace($comment);
+            }
+        }
+        // Reject the request outright if it's invalid.
+        if (!$valid) {
+            $dpo = $datarequest->get('dpo');
+            api::update_request_status($requestid, api::DATAREQUEST_STATUS_REJECTED, $dpo, $comment);
+            return;
+        }
+
+        // Update the status of this request as pre-processing.
+        mtrace('Generating the contexts containing personal data for the user...');
+        api::update_request_status($requestid, api::DATAREQUEST_STATUS_PREPROCESSING);
+
+        // Add the list of relevant contexts to the request, and mark all as pending approval.
+        $privacymanager = new \core_privacy\manager();
+        $privacymanager->set_observer(new \tool_dataprivacy\manager_observer());
+
+        $contextlistcollection = $privacymanager->get_contexts_for_userid($datarequest->get('userid'));
+        api::add_request_contexts_with_status($contextlistcollection, $requestid, contextlist_context::STATUS_PENDING);
+
+        // When the preparation of the contexts finishes, update the request status to awaiting approval.
+        api::update_request_status($requestid, api::DATAREQUEST_STATUS_AWAITING_APPROVAL);
+        mtrace('Context generation complete...');
+
+        // Get the list of the site Data Protection Officers.
+        $dpos = api::get_site_dpos();
+
+        // Email the data request to the Data Protection Officer(s)/Admin(s).
+        foreach ($dpos as $dpo) {
+            $dponame = fullname($dpo);
+            if (api::notify_dpo($dpo, $datarequest)) {
+                mtrace('Message sent to DPO: ' . $dponame);
+            } else {
+                mtrace('A problem was encountered while sending the message to the DPO: ' . $dponame);
+            }
+        }
+    }
+}
@@ -0,0 +1,256 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Adhoc task that processes an approved data request and prepares/deletes the user's data.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace tool_dataprivacy\task;
+
+use action_link;
+use coding_exception;
+use core\message\message;
+use core\task\adhoc_task;
+use core_user;
+use moodle_exception;
+use moodle_url;
+use tool_dataprivacy\api;
+use tool_dataprivacy\data_request;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class that processes an approved data request and prepares/deletes the user's data.
+ *
+ * Custom data accepted:
+ * - requestid -> The ID of the data request to be processed.
+ *
+ * @package     tool_dataprivacy
+ * @copyright   2018 Jun Pataleta
+ * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class process_data_request_task extends adhoc_task {
+
+    /**
+     * Run the task to initiate the data request process.
+     *
+     * @throws coding_exception
+     * @throws moodle_exception
+     */
+    public function execute() {
+        global $CFG, $PAGE, $SITE;
+
+        require_once($CFG->dirroot . "/{$CFG->admin}/tool/dataprivacy/lib.php");
+
+        if (!isset($this->get_custom_data()->requestid)) {
+            throw new coding_exception('The custom data \'requestid\' is required.');
+        }
+        $requestid = $this->get_custom_data()->requestid;
+
+        $requestpersistent = new data_request($requestid);
+        $request = $requestpersistent->to_record();
+
+        // Check if this request still needs to be processed. e.g. The user might have cancelled it before this task has run.
+        $status = $requestpersistent->get('status');
+        if (!api::is_active($status)) {
+            mtrace("Request {$requestid} with status {$status} doesn't need to be processed. Skipping...");
+            return;
+        }
+
+        // Get the user details now. We might not be able to retrieve it later if it's a deletion processing.
+        $foruser = core_user::get_user($request->userid);
+        $usercontext = \context_user::instance($foruser->id);
+
+        // Update the status of this request as pre-processing.
+        mtrace('Processing request...');
+        api::update_request_status($requestid, api::DATAREQUEST_STATUS_PROCESSING);
+        $completestatus = api::DATAREQUEST_STATUS_COMPLETE;
+
+        if ($request->type == api::DATAREQUEST_TYPE_EXPORT) {
+            // Run as the user performing the export.
+            cron_setup_user($foruser);
+
+            // Get the collection of approved_contextlist objects needed for core_privacy data export.
+            $approvedclcollection = api::get_approved_contextlist_collection_for_request($requestpersistent);
+
+            // Export the data.
+            $manager = new \core_privacy\manager();
+            $manager->set_observer(new \tool_dataprivacy\manager_observer());
+
+            $exportedcontent = $manager->export_user_data($approvedclcollection);
+
+            $fs = get_file_storage();
+            $filerecord = new \stdClass;
+            $filerecord->component = 'tool_dataprivacy';
+            $filerecord->contextid = $usercontext->id;
+            $filerecord->userid    = $foruser->id;
+            $filerecord->filearea  = 'export';
+            $filerecord->filename  = 'export.zip';
+            $filerecord->filepath  = '/';
+            $filerecord->itemid    = $requestid;
+            $filerecord->license   = $CFG->sitedefaultlicense;
+            $filerecord->author    = fullname($foruser);
+            // Save somewhere.
+            $thing = $fs->create_file_from_pathname($filerecord, $exportedcontent);
+            $completestatus = api::DATAREQUEST_STATUS_DOWNLOAD_READY;
+        } else if ($request->type == api::DATAREQUEST_TYPE_DELETE) {
+            // Get the collection of approved_contextlist objects needed for core_privacy data deletion.
+            $approvedclcollection = api::get_approved_contextlist_collection_for_request($requestpersistent);
+
+            // Delete the data.
+            $manager = new \core_privacy\manager();
+            $manager->set_observer(new \tool_dataprivacy\manager_observer());
+
+            $manager->delete_data_for_user($approvedclcollection);
+            $completestatus = api::DATAREQUEST_STATUS_DELETED;
+        }
+
+        // When the preparation of the metadata finishes, update the request status to awaiting approval.
+        api::update_request_status($requestid, $completestatus);
+        mtrace('The processing of the user data request has been completed...');
+
+        // Create message to notify the user regarding the processing results.
+        $dpo = core_user::get_user($request->dpo);
+        $message = new message();
+        $message->courseid = $SITE->id;
+        $message->component = 'tool_dataprivacy';
+        $message->name = 'datarequestprocessingresults';
+        $message->userfrom = $dpo;
+        $message->replyto = $dpo->email;
+        $message->replytoname = fullname($dpo->email);
+
+        $typetext = null;
+        // Prepare the context data for the email message body.
+        $messagetextdata = [
+            'username' => fullname($foruser)
+        ];
+
+        $output = $PAGE->get_renderer('tool_dataprivacy');
+        $emailonly = false;
+        $notifyuser = true;
+        switch ($request->type) {
+            case api::DATAREQUEST_TYPE_EXPORT:
+                // Check if the user is allowed to download their own export. (This is for
+                // institutions which centrally co-ordinate subject access request across many
+                // systems, not just one Moodle instance, so we don't want every instance emailing
+                // the user.)
+                if (!api::can_download_data_request_for_user($request->userid, $request->requestedby, $request->userid)) {
+                    $notifyuser = false;
+                }
+
+                $typetext = get_string('requesttypeexport', 'tool_dataprivacy');
+                // We want to notify the user in Moodle about the processing results.
+                $message->notification = 1;
+                $datarequestsurl = new moodle_url('/admin/tool/dataprivacy/mydatarequests.php');
+                $message->contexturl = $datarequestsurl;
+                $message->contexturlname = get_string('datarequests', 'tool_dataprivacy');
+                // Message to the recipient.
+                $messagetextdata['message'] = get_string('resultdownloadready', 'tool_dataprivacy', $SITE->fullname);
+                // Prepare download link.
+                $downloadurl = moodle_url::make_pluginfile_url($usercontext->id, 'tool_dataprivacy', 'export', $thing->get_itemid(),
+                    $thing->get_filepath(), $thing->get_filename(), true);
+                $downloadlink = new action_link($downloadurl, get_string('download', 'tool_dataprivacy'));
+                $messagetextdata['downloadlink'] = $downloadlink->export_for_template($output);
+                break;
+            case api::DATAREQUEST_TYPE_DELETE:
+                $typetext = get_string('requesttypedelete', 'tool_dataprivacy');
+                // No point notifying a deleted user in Moodle.
+                $message->notification = 0;
+                // Message to the recipient.
+                $messagetextdata['message'] = get_string('resultdeleted', 'tool_dataprivacy', $SITE->fullname);
+                // Message will be sent to the deleted user via email only.
+                $emailonly = true;
+                break;
+            default:
+                cron_setup_user();
+                throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+
+        $subject = get_string('datarequestemailsubject', 'tool_dataprivacy', $typetext);
+        $message->subject           = $subject;
+        $message->fullmessageformat = FORMAT_HTML;
+        $message->userto = $foruser;
+
+        // Render message email body.
+        $messagehtml = $output->render_from_template('tool_dataprivacy/data_request_results_email', $messagetextdata);
+        $message->fullmessage = html_to_text($messagehtml);
+        $message->fullmessagehtml = $messagehtml;
+
+        // Send message to the user involved.
+        if ($notifyuser) {
+            if ($emailonly) {
+                email_to_user($foruser, $dpo, $subject, $message->fullmessage, $messagehtml);
+            } else {
+                message_send($message);
+            }
+            mtrace('Message sent to user: ' . $messagetextdata['username']);
+        }
+
+        // Send to requester as well in some circumstances.
+        if ($foruser->id != $request->requestedby) {
+            $sendtorequester = false;
+            switch ($request->type) {
+                case api::DATAREQUEST_TYPE_EXPORT:
+                    // Send to the requester as well if they can download it, unless they are the
+                    // DPO. If we didn't notify the user themselves (because they can't download)
+                    // then send to requester even if it is the DPO, as in that case the requester
+                    // needs to take some action.
+                    if (api::can_download_data_request_for_user($request->userid, $request->requestedby, $request->requestedby)) {
+                        $sendtorequester = !$notifyuser || !api::is_site_dpo($request->requestedby);
+                    }
+                    break;
+                case api::DATAREQUEST_TYPE_DELETE:
+                    // Send to the requester if they are not the DPO and if they are allowed to
+                    // create data requests for the user (e.g. Parent).
+                    $sendtorequester = !api::is_site_dpo($request->requestedby) &&
+                            api::can_create_data_request_for_user($request->userid, $request->requestedby);
+                    break;
+                default:
+                    throw new moodle_exception('errorinvalidrequesttype', 'tool_dataprivacy');
+            }
+
+            // Ensure the requester has the capability to make data requests for this user.
+            if ($sendtorequester) {
+                $requestedby = core_user::get_user($request->requestedby);
+                $message->userto = $requestedby;
+                $messagetextdata['username'] = fullname($requestedby);
+                // Render message email body.
+                $messagehtml = $output->render_from_template('tool_dataprivacy/data_request_results_email', $messagetextdata);
+                $message->fullmessage = html_to_text($messagehtml);
+                $message->fullmessagehtml = $messagehtml;
+
+                // Send message.
+                if ($emailonly) {
+                    email_to_user($requestedby, $dpo, $subject, $message->fullmessage, $messagehtml);
+                } else {
+                    message_send($message);
+                }
+                mtrace('Message sent to requester: ' . $messagetextdata['username']);
+            }
+        }
+
+        cron_setup_user();
+
+        if ($request->type == api::DATAREQUEST_TYPE_DELETE) {
+            // Delete the user.
+            delete_user($foruser);
+        }
+    }
+}
@@ -0,0 +1,91 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the contact form to the site's Data Protection Officer
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once('../../../config.php');
+require_once('lib.php');
+require_once('classes/api.php');
+require_once('createdatarequest_form.php');
+
+$manage = optional_param('manage', 0, PARAM_INT);
+
+$url = new moodle_url('/admin/tool/dataprivacy/createdatarequest.php', ['manage' => $manage]);
+
+$PAGE->set_url($url);
+
+require_login();
+if (isguestuser()) {
+    print_error('noguest');
+}
+
+// Return URL and context.
+if ($manage) {
+    // For the case where DPO creates data requests on behalf of another user.
+    $returnurl = new moodle_url($CFG->wwwroot . '/admin/tool/dataprivacy/datarequests.php');
+    $context = context_system::instance();
+    // Make sure the user has the proper capability.
+    require_capability('tool/dataprivacy:managedatarequests', $context);
+} else {
+    // For the case where a user makes request for themselves (or for their children if they are the parent).
+    $returnurl = new moodle_url($CFG->wwwroot . '/admin/tool/dataprivacy/mydatarequests.php');
+    $context = context_user::instance($USER->id);
+}
+$PAGE->set_context($context);
+
+// If contactdataprotectionofficer is disabled, send the user back to the profile page, or the privacy policy page.
+// That is, unless you have sufficient capabilities to perform this on behalf of a user.
+if (!$manage && !\tool_dataprivacy\api::can_contact_dpo()) {
+    redirect($returnurl, get_string('contactdpoviaprivacypolicy', 'tool_dataprivacy'), 0, \core\output\notification::NOTIFY_ERROR);
+}
+
+$mform = new tool_dataprivacy_data_request_form($url->out(false), ['manage' => !empty($manage)]);
+
+// Data request cancelled.
+if ($mform->is_cancelled()) {
+    redirect($returnurl);
+}
+
+// Data request submitted.
+if ($data = $mform->get_data()) {
+    \tool_dataprivacy\api::create_data_request($data->userid, $data->type, $data->comments);
+
+    if ($manage) {
+        $foruser = core_user::get_user($data->userid);
+        $redirectmessage = get_string('datarequestcreatedforuser', 'tool_dataprivacy', fullname($foruser));
+    } else {
+        $redirectmessage = get_string('requestsubmitted', 'tool_dataprivacy');
+    }
+    redirect($returnurl, $redirectmessage);
+}
+
+$title = get_string('contactdataprotectionofficer', 'tool_dataprivacy');
+$PAGE->set_heading($title);
+$PAGE->set_title($title);
+echo $OUTPUT->header();
+echo $OUTPUT->heading($title);
+
+echo $OUTPUT->box_start();
+$mform->display();
+echo $OUTPUT->box_end();
+
+echo $OUTPUT->footer();
@@ -0,0 +1,129 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * The contact form to the site's Data Protection Officer
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+use tool_dataprivacy\api;
+use tool_dataprivacy\local\helper;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir.'/formslib.php');
+\MoodleQuickForm::registerElementType('request_user_autocomplete',
+    $CFG->dirroot . '/admin/tool/dataprivacy/classes/form/request_user_autocomplete.php',
+    '\\tool_dataprivacy\\form\\request_user_autocomplete');
+/**
+ * The contact form to the site's Data Protection Officer
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+class tool_dataprivacy_data_request_form extends moodleform {
+
+    /** @var bool Flag to indicate whether this form is being rendered for managing data requests or for regular requests. */
+    protected $manage = false;
+
+    /**
+     * Form definition.
+     *
+     * @throws coding_exception
+     */
+    public function definition() {
+        global $USER;
+        $mform =& $this->_form;
+
+        $this->manage = $this->_customdata['manage'];
+        if ($this->manage) {
+            $options = [
+                'ajax' => 'tool_dataprivacy/form-user-selector',
+            ];
+            $mform->addElement('request_user_autocomplete', 'userid', get_string('requestfor', 'tool_dataprivacy'), [], $options);
+            $mform->addRule('userid', null, 'required', null, 'client');
+
+        } else {
+            // Get users whom you are being a guardian to if your role has the capability to make data requests for children.
+            if ($children = helper::get_children_of_user($USER->id)) {
+                $useroptions = [
+                    $USER->id => fullname($USER)
+                ];
+                foreach ($children as $key => $child) {
+                    $useroptions[$key] = fullname($child);
+                }
+                $mform->addElement('autocomplete', 'userid', get_string('requestfor', 'tool_dataprivacy'), $useroptions);
+                $mform->addRule('userid', null, 'required', null, 'client');
+
+            } else {
+                // Requesting for self.
+                $mform->addElement('hidden', 'userid', $USER->id);
+            }
+        }
+
+        $mform->setType('userid', PARAM_INT);
+
+        // Subject access request type.
+        $options = [
+            api::DATAREQUEST_TYPE_EXPORT => get_string('requesttypeexport', 'tool_dataprivacy'),
+            api::DATAREQUEST_TYPE_DELETE => get_string('requesttypedelete', 'tool_dataprivacy')
+        ];
+        $mform->addElement('select', 'type', get_string('requesttype', 'tool_dataprivacy'), $options);
+        $mform->setType('type', PARAM_INT);
+        $mform->addHelpButton('type', 'requesttype', 'tool_dataprivacy');
+
+        // Request comments text area.
+        $textareaoptions = ['cols' => 60, 'rows' => 10];
+        $mform->addElement('textarea', 'comments', get_string('requestcomments', 'tool_dataprivacy'), $textareaoptions);
+        $mform->setType('type', PARAM_ALPHANUM);
+        $mform->addHelpButton('comments', 'requestcomments', 'tool_dataprivacy');
+
+        // Action buttons.
+        $this->add_action_buttons();
+
+    }
+
+    /**
+     * Form validation.
+     *
+     * @param array $data
+     * @param array $files
+     * @return array
+     * @throws coding_exception
+     * @throws dml_exception
+     */
+    public function validation($data, $files) {
+        $errors = [];
+
+        $validrequesttypes = [
+            api::DATAREQUEST_TYPE_EXPORT,
+            api::DATAREQUEST_TYPE_DELETE
+        ];
+        if (!in_array($data['type'], $validrequesttypes)) {
+            $errors['type'] = get_string('errorinvalidrequesttype', 'tool_dataprivacy');
+        }
+
+        if (api::has_ongoing_request($data['userid'], $data['type'])) {
+            $errors['type'] = get_string('errorrequestalreadyexists', 'tool_dataprivacy');
+        }
+
+        return $errors;
+    }
+}
@@ -0,0 +1,55 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the data deletion main page.
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+require_login(null, false);
+
+$filter = optional_param('filter', CONTEXT_COURSE, PARAM_INT);
+
+$url = new moodle_url('/admin/tool/dataprivacy/datadeletion.php');
+
+$title = get_string('datadeletion', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title);
+
+echo $OUTPUT->header();
+
+if (\tool_dataprivacy\api::is_site_dpo($USER->id)) {
+    $table = new \tool_dataprivacy\output\expired_contexts_table($filter);
+    $table->baseurl = $url;
+    $table->baseurl->param('filter', $filter);
+
+    $datadeletionpage = new \tool_dataprivacy\output\data_deletion_page($filter, $table);
+
+    $output = $PAGE->get_renderer('tool_dataprivacy');
+    echo $output->render($datadeletionpage);
+} else {
+    $dponamestring = implode (',', tool_dataprivacy\api::get_dpo_role_names());
+    $message = get_string('privacyofficeronly', 'tool_dataprivacy', $dponamestring);
+    echo $OUTPUT->notification($message, 'error');
+}
+
+echo $OUTPUT->footer();
@@ -0,0 +1,49 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the data registry main page.
+ *
+ * @copyright 2018 onwards David Monllao
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+require_login(null, false);
+
+$contextlevel = optional_param('contextlevel', CONTEXT_SYSTEM, PARAM_INT);
+$contextid = optional_param('contextid', 0, PARAM_INT);
+
+$url = new moodle_url('/admin/tool/dataprivacy/dataregistry.php');
+$title = get_string('dataregistry', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title);
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+
+if (\tool_dataprivacy\api::is_site_dpo($USER->id)) {
+    $dataregistry = new tool_dataprivacy\output\data_registry_page($contextlevel, $contextid);
+    echo $output->render($dataregistry);
+} else {
+    $dponamestring = implode (', ', tool_dataprivacy\api::get_dpo_role_names());
+    $message = get_string('privacyofficeronly', 'tool_dataprivacy', $dponamestring);
+    echo $OUTPUT->notification($message, 'error');
+}
+echo $OUTPUT->footer();
@@ -0,0 +1,80 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the contact form to the site's Data Protection Officer
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once("../../../config.php");
+require_once('lib.php');
+
+require_login(null, false);
+
+$url = new moodle_url('/admin/tool/dataprivacy/datarequests.php');
+
+$title = get_string('datarequests', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title, '', 'tool/dataprivacy:managedatarequests');
+
+echo $OUTPUT->header();
+echo $OUTPUT->heading($title);
+
+if (\tool_dataprivacy\api::is_site_dpo($USER->id)) {
+    $filtersapplied = optional_param_array('request-filters', [-1], PARAM_NOTAGS);
+    $filterscleared = optional_param('filters-cleared', 0, PARAM_INT);
+    if ($filtersapplied === [-1]) {
+        // If there are no filters submitted, check if there is a saved filters from the user preferences.
+        $filterprefs = get_user_preferences(\tool_dataprivacy\local\helper::PREF_REQUEST_FILTERS, null);
+        if ($filterprefs && empty($filterscleared)) {
+            $filtersapplied = json_decode($filterprefs);
+        } else {
+            $filtersapplied = [];
+        }
+    }
+    // Save the current applied filters to the user preferences.
+    set_user_preference(\tool_dataprivacy\local\helper::PREF_REQUEST_FILTERS, json_encode($filtersapplied));
+
+    $types = [];
+    $statuses = [];
+    foreach ($filtersapplied as $filter) {
+        list($category, $value) = explode(':', $filter);
+        switch($category) {
+            case \tool_dataprivacy\local\helper::FILTER_TYPE:
+                $types[] = $value;
+                break;
+            case \tool_dataprivacy\local\helper::FILTER_STATUS:
+                $statuses[] = $value;
+                break;
+        }
+    }
+
+    $table = new \tool_dataprivacy\output\data_requests_table(0, $statuses, $types, true);
+    $table->baseurl = $url;
+
+    $requestlist = new tool_dataprivacy\output\data_requests_page($table, $filtersapplied);
+    $requestlistoutput = $PAGE->get_renderer('tool_dataprivacy');
+    echo $requestlistoutput->render($requestlist);
+} else {
+    $dponamestring = implode (', ', tool_dataprivacy\api::get_dpo_role_names());
+    $message = get_string('privacyofficeronly', 'tool_dataprivacy', $dponamestring);
+    echo $OUTPUT->notification($message, 'error');
+}
+
+echo $OUTPUT->footer();
@@ -0,0 +1,70 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Capability definitions for this module.
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 onwards Jun Pataleta
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$capabilities = [
+
+    // Capability for managing data requests. Usually given to the site's Data Protection Officer.
+    'tool/dataprivacy:managedatarequests' => [
+        'riskbitmask' => RISK_SPAM | RISK_PERSONAL | RISK_XSS | RISK_DATALOSS,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => []
+    ],
+
+    // Capability for managing the data registry. Usually given to the site's Data Protection Officer.
+    'tool/dataprivacy:managedataregistry' => [
+        'riskbitmask' => RISK_SPAM | RISK_PERSONAL | RISK_XSS | RISK_DATALOSS,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_SYSTEM,
+        'archetypes' => []
+    ],
+
+    // Capability for parents/guardians to make data requests on behalf of their children.
+    'tool/dataprivacy:makedatarequestsforchildren' => [
+        'riskbitmask' => RISK_SPAM | RISK_PERSONAL,
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_USER,
+        'archetypes' => []
+    ],
+
+    // Capability for users to download the results of their own data request.
+    'tool/dataprivacy:downloadownrequest' => [
+        'riskbitmask' => 0,
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_USER,
+        'archetypes' => [
+            'user' => CAP_ALLOW
+        ]
+    ],
+
+    // Capability for administrators to download other people's data requests.
+    'tool/dataprivacy:downloadallrequests' => [
+        'riskbitmask' => RISK_PERSONAL,
+        'captype' => 'read',
+        'contextlevel' => CONTEXT_USER,
+        'archetypes' => []
+    ],
+];
@@ -0,0 +1,43 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * tool_dataprivacy cache definitions.
+ *
+ * @package    tool_dataprivacy
+ * @category   cache
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$definitions = array(
+    'purpose' => array(
+        'mode' => cache_store::MODE_APPLICATION,
+        'simplekeys' => true,
+        'simpledata' => true,
+        'staticacceleration' => true,
+        'staticaccelerationsize' => 30,
+    ),
+    'contextlevel' => array(
+        'mode' => cache_store::MODE_APPLICATION,
+        'simplekeys' => true,
+        'simpledata' => true,
+        'staticacceleration' => true,
+        'staticaccelerationsize' => 10,
+    ),
+);
@@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<XMLDB PATH="admin/tool/dataprivacy/db" VERSION="20180821" COMMENT="XMLDB file for Moodle tool/dataprivacy"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="../../../../lib/xmldb/xmldb.xsd"
+>
+  <TABLES>
+    <TABLE NAME="tool_dataprivacy_request" COMMENT="Table for data requests">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="type" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Data request type"/>
+        <FIELD NAME="comments" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="More details about the request"/>
+        <FIELD NAME="commentsformat" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The user ID the request is being made for"/>
+        <FIELD NAME="requestedby" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The user ID of the one making the request"/>
+        <FIELD NAME="status" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The current status of the data request"/>
+        <FIELD NAME="dpo" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false" COMMENT="The user ID of the Data Protection Officer who is reviewing th request"/>
+        <FIELD NAME="dpocomment" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="DPO's comments (e.g. reason for rejecting the request, etc.)"/>
+        <FIELD NAME="dpocommentformat" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The user who created/modified this request object"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The time this data request was created"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The last time this data request was updated"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id"/>
+        <KEY NAME="requestedby" TYPE="foreign" FIELDS="requestedby" REFTABLE="user" REFFIELDS="id"/>
+        <KEY NAME="dpo" TYPE="foreign" FIELDS="dpo" REFTABLE="user" REFFIELDS="id"/>
+        <KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_purpose" COMMENT="Data purposes">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="100" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="description" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="descriptionformat" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="lawfulbases" TYPE="text" NOTNULL="true" SEQUENCE="false" COMMENT="Comma-separated IDs matching records in tool_dataprivacy_lawfulbasis"/>
+        <FIELD NAME="sensitivedatareasons" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Comma-separated IDs matching records in tool_dataprivacy_sensitive"/>
+        <FIELD NAME="retentionperiod" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="protected" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_category" COMMENT="Data categories">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="100" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="description" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="descriptionformat" TYPE="int" LENGTH="1" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_ctxinstance" COMMENT="Default comment for the table, please edit me">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="contextid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="purposeid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="categoryid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="contextid" TYPE="foreign-unique" FIELDS="contextid" REFTABLE="context" REFFIELDS="id"/>
+        <KEY NAME="purposeid" TYPE="foreign" FIELDS="purposeid" REFTABLE="tool_dataprivacy_purpose" REFFIELDS="id"/>
+        <KEY NAME="categoryid" TYPE="foreign" FIELDS="categoryid" REFTABLE="tool_dataprivacy_category" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_ctxlevel" COMMENT="Default comment for the table, please edit me">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="contextlevel" TYPE="int" LENGTH="3" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="purposeid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="categoryid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="contextlevel" TYPE="unique" FIELDS="contextlevel"/>
+        <KEY NAME="categoryid" TYPE="foreign" FIELDS="categoryid" REFTABLE="tool_dataprivacy_category" REFFIELDS="id"/>
+        <KEY NAME="purposeid" TYPE="foreign" FIELDS="purposeid" REFTABLE="tool_dataprivacy_purpose" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_ctxexpired" COMMENT="Default comment for the table, please edit me">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="contextid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="status" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="contextid" TYPE="foreign-unique" FIELDS="contextid" REFTABLE="context" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_contextlist" COMMENT="List of contexts for a component">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="component" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" COMMENT="Frankenstyle component name"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_ctxlst_ctx" COMMENT="A contextlist context item">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="contextid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="contextlistid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="status" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Approval status of the context item"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="contextlistid" TYPE="foreign" FIELDS="contextlistid" REFTABLE="tool_dataprivacy_contextlist" REFFIELDS="id" COMMENT="Reference to the contextlist containing this context item"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="tool_dataprivacy_rqst_ctxlst" COMMENT="Association table joining requests and contextlists">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="requestid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="contextlistid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+        <KEY NAME="requestid" TYPE="foreign" FIELDS="requestid" REFTABLE="tool_dataprivacy_request" REFFIELDS="id" COMMENT="Reference to the request"/>
+        <KEY NAME="contextlistid" TYPE="foreign" FIELDS="contextlistid" REFTABLE="tool_dataprivacy_contextlist" REFFIELDS="id" COMMENT="Reference to the contextlist"/>
+        <KEY NAME="request_contextlist" TYPE="unique" FIELDS="requestid, contextlistid" COMMENT="Uniqueness constraint on request and contextlist"/>
+      </KEYS>
+    </TABLE>
+  </TABLES>
+</XMLDB>
@@ -0,0 +1,52 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Defines message providers (types of messages being sent)
+ *
+ * @package   tool_dataprivacy
+ * @copyright 2018 onwards  Jun Pataleta
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$messageproviders = [
+    // Notify Data Protection Officer about incoming data requests.
+    'contactdataprotectionofficer' => [
+        'defaults' => [
+            'popup' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+            'email' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+        ],
+        'capability'  => 'tool/dataprivacy:managedatarequests'
+    ],
+
+    // Notify user about the processing results of their data request.
+    'datarequestprocessingresults' => [
+        'defaults' => [
+            'popup' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+            'email' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+        ]
+    ],
+
+    // Notify Data Protection Officer about exceptions.
+    'notifyexceptions' => [
+        'defaults' => [
+            'email' => MESSAGE_PERMITTED + MESSAGE_DEFAULT_LOGGEDIN + MESSAGE_DEFAULT_LOGGEDOFF,
+        ],
+        'capability'  => 'tool/dataprivacy:managedatarequests'
+    ],
+];
@@ -0,0 +1,176 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+/**
+ * Chat external functions and service definitions.
+ *
+ * @package    tool_dataprivacy
+ * @category   external
+ * @copyright  2018 Jun Pataleta <jun@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+defined('MOODLE_INTERNAL') || die;
+$functions = [
+    'tool_dataprivacy_cancel_data_request' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'cancel_data_request',
+        'classpath'     => '',
+        'description'   => 'Cancel the data request made by the user',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_contact_dpo' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'contact_dpo',
+        'classpath'     => '',
+        'description'   => 'Contact the site Data Protection Officer(s)',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_mark_complete' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'mark_complete',
+        'classpath'     => '',
+        'description'   => 'Mark a user\'s general enquiry as complete',
+        'type'          => 'write',
+        'capabilities'  => 'tool/dataprivacy:managedatarequests',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_get_data_request' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'get_data_request',
+        'classpath'     => '',
+        'description'   => 'Fetch the details of a user\'s data request',
+        'type'          => 'read',
+        'capabilities'  => 'tool/dataprivacy:managedatarequests',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_approve_data_request' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'approve_data_request',
+        'classpath'     => '',
+        'description'   => 'Approve a data request',
+        'type'          => 'write',
+        'capabilities'  => 'tool/dataprivacy:managedatarequests',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_deny_data_request' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'deny_data_request',
+        'classpath'     => '',
+        'description'   => 'Deny a data request',
+        'type'          => 'write',
+        'capabilities'  => 'tool/dataprivacy:managedatarequests',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_get_users' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'get_users',
+        'classpath'     => '',
+        'description'   => 'Fetches a list of users',
+        'type'          => 'read',
+        'capabilities'  => 'tool/dataprivacy:managedatarequests',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_create_purpose_form' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'create_purpose_form',
+        'classpath'     => '',
+        'description'   => 'Adds a data purpose',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_create_category_form' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'create_category_form',
+        'classpath'     => '',
+        'description'   => 'Adds a data category',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_delete_purpose' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'delete_purpose',
+        'classpath'     => '',
+        'description'   => 'Deletes an existing data purpose',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_delete_category' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'delete_category',
+        'classpath'     => '',
+        'description'   => 'Deletes an existing data category',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_set_contextlevel_form' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'set_contextlevel_form',
+        'classpath'     => '',
+        'description'   => 'Sets purpose and category across a context level',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_set_context_form' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'set_context_form',
+        'classpath'     => '',
+        'description'   => 'Sets purpose and category for a specific context',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_tree_extra_branches' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'tree_extra_branches',
+        'classpath'     => '',
+        'description'   => 'Return branches for the context tree',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+    'tool_dataprivacy_confirm_contexts_for_deletion' => [
+        'classname'     => 'tool_dataprivacy\external',
+        'methodname'    => 'confirm_contexts_for_deletion',
+        'classpath'     => '',
+        'description'   => 'Mark the selected expired contexts as confirmed for deletion',
+        'type'          => 'write',
+        'capabilities'  => '',
+        'ajax'          => true,
+        'loginrequired' => true,
+    ],
+];
@@ -0,0 +1,54 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file defines tasks performed by the tool.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao {@link http://www.davidmonllao.com}
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+// List of tasks.
+$tasks = array(
+    array(
+        'classname' => 'tool_dataprivacy\task\expired_retention_period',
+        'blocking' => 0,
+        'minute' => '0',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ), array(
+        'classname' => 'tool_dataprivacy\task\delete_expired_contexts',
+        'blocking' => 0,
+        'minute' => '0',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ), array(
+        'classname' => 'tool_dataprivacy\task\delete_expired_requests',
+        'blocking' => 0,
+        'minute' => 'R',
+        'hour' => 'R',
+        'day' => '*',
+        'dayofweek' => '*',
+        'month' => '*'
+    ),
+);
@@ -0,0 +1,205 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * tool_dataprivacy plugin upgrade code
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Function to upgrade auth_cas.
+ * @param int $oldversion the version we are upgrading from
+ * @return bool result
+ */
+function xmldb_tool_dataprivacy_upgrade($oldversion) {
+    global $CFG, $DB;
+
+    $dbman = $DB->get_manager();
+
+    if ($oldversion < 2017051500) {
+        // Nothing to do here. Moodle Plugins site's just complaining about missing upgrade.php.
+        // Savepoint reached.
+        upgrade_plugin_savepoint(true, 2017051500, 'error', 'dataprivacy');
+    }
+
+    if ($oldversion < 2017051503) {
+
+        // Define table tool_dataprivacy_ctxexpired to be created.
+        $table = new xmldb_table('tool_dataprivacy_ctxexpired');
+
+        // Adding fields to table tool_dataprivacy_ctxexpired.
+        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('status', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
+        $table->add_field('usermodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+        // Adding keys to table tool_dataprivacy_ctxexpired.
+        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
+        $table->add_key('contextid', XMLDB_KEY_FOREIGN_UNIQUE, array('contextid'), 'context', array('id'));
+
+        // Conditionally launch create table for tool_dataprivacy_ctxexpired.
+        if (!$dbman->table_exists($table)) {
+            $dbman->create_table($table);
+        }
+
+        // Dataprivacy savepoint reached.
+        upgrade_plugin_savepoint(true, 2017051503, 'tool', 'dataprivacy');
+    }
+
+    if ($oldversion < 2017051504) {
+
+        // Define table tool_dataprivacy_contextlist to be created.
+        $table = new xmldb_table('tool_dataprivacy_contextlist');
+
+        // Adding fields to table tool_dataprivacy_contextlist.
+        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+        $table->add_field('component', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
+        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
+
+        // Adding keys to table tool_dataprivacy_contextlist.
+        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
+
+        // Conditionally launch create table for tool_dataprivacy_contextlist.
+        if (!$dbman->table_exists($table)) {
+            $dbman->create_table($table);
+        }
+
+        // Define table tool_dataprivacy_ctxlst_ctx to be created.
+        $table = new xmldb_table('tool_dataprivacy_ctxlst_ctx');
+
+        // Adding fields to table tool_dataprivacy_ctxlst_ctx.
+        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+        $table->add_field('contextid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('contextlistid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('status', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0');
+        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
+        $table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
+
+        // Adding keys to table tool_dataprivacy_ctxlst_ctx.
+        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
+        $table->add_key('contextlistid', XMLDB_KEY_FOREIGN, array('contextlistid'), 'tool_dataprivacy_contextlist', array('id'));
+
+        // Conditionally launch create table for tool_dataprivacy_ctxlst_ctx.
+        if (!$dbman->table_exists($table)) {
+            $dbman->create_table($table);
+        }
+
+        // Define table tool_dataprivacy_rqst_ctxlst to be created.
+        $table = new xmldb_table('tool_dataprivacy_rqst_ctxlst');
+
+        // Adding fields to table tool_dataprivacy_rqst_ctxlst.
+        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
+        $table->add_field('requestid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+        $table->add_field('contextlistid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
+
+        // Adding keys to table tool_dataprivacy_rqst_ctxlst.
+        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
+        $table->add_key('requestid', XMLDB_KEY_FOREIGN, array('requestid'), 'tool_dataprivacy_request', array('id'));
+        $table->add_key('contextlistid', XMLDB_KEY_FOREIGN, array('contextlistid'), 'tool_dataprivacy_contextlist', array('id'));
+        $table->add_key('request_contextlist', XMLDB_KEY_UNIQUE, array('requestid', 'contextlistid'));
+
+        // Conditionally launch create table for tool_dataprivacy_rqst_ctxlst.
+        if (!$dbman->table_exists($table)) {
+            $dbman->create_table($table);
+        }
+
+        // Dataprivacy savepoint reached.
+        upgrade_plugin_savepoint(true, 2017051504, 'tool', 'dataprivacy');
+    }
+
+    if ($oldversion < 2017051506) {
+        // Define field lawfulbases to be added to tool_dataprivacy_purpose.
+        $table = new xmldb_table('tool_dataprivacy_purpose');
+
+        // It is a required field. We initially define and add it as null and later update it to XMLDB_NOTNULL.
+        $field = new xmldb_field('lawfulbases', XMLDB_TYPE_TEXT, null, null, null, null, null, 'descriptionformat');
+
+        // Conditionally launch add field lawfulbases.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+
+            // Set a kind-of-random value to lawfulbasis field.
+            $DB->set_field('tool_dataprivacy_purpose', 'lawfulbases', 'gdpr_art_6_1_a');
+
+            // We redefine it now as not null.
+            $field = new xmldb_field('lawfulbases', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null, 'descriptionformat');
+
+            // Launch change of nullability for field lawfulbases.
+            $dbman->change_field_notnull($table, $field);
+        }
+
+        // Define field sensitivedatareasons to be added to tool_dataprivacy_purpose.
+        $table = new xmldb_table('tool_dataprivacy_purpose');
+        $field = new xmldb_field('sensitivedatareasons', XMLDB_TYPE_TEXT, null, null, null, null, null, 'lawfulbases');
+
+        // Conditionally launch add field sensitivedatareasons.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Dataprivacy savepoint reached.
+        upgrade_plugin_savepoint(true, 2017051506, 'tool', 'dataprivacy');
+    }
+
+    if ($oldversion < 2017051516) {
+        // Update completed delete requests to new delete status.
+        $query = "UPDATE {tool_dataprivacy_request}
+                     SET status = :setstatus
+                   WHERE type = :type
+                         AND status = :wherestatus";
+        $params = array(
+            'setstatus' => 10, // Request deleted.
+            'type' => 2, // Delete type.
+            'wherestatus' => 5, // Request completed.
+        );
+
+        $DB->execute($query, $params);
+
+        // Update completed data export requests to new download ready status.
+        $params = array(
+            'setstatus' => 8, // Request download ready.
+            'type' => 1, // export type.
+            'wherestatus' => 5, // Request completed.
+        );
+
+        $DB->execute($query, $params);
+
+        upgrade_plugin_savepoint(true, 2017051516, 'tool', 'dataprivacy');
+    }
+
+    if ($oldversion < 2017051517) {
+
+        // Changing precision of field status on table tool_dataprivacy_request to (2).
+        $table = new xmldb_table('tool_dataprivacy_request');
+        $field = new xmldb_field('status', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'requestedby');
+
+        // Launch change of precision for field status.
+        $dbman->change_field_precision($table, $field);
+
+        // Dataprivacy savepoint reached.
+        upgrade_plugin_savepoint(true, 2017051517, 'tool', 'dataprivacy');
+    }
+
+    return true;
+}
@@ -0,0 +1,78 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage default purposes and categories.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+require_login(null, false);
+
+$url = new \moodle_url('/admin/tool/dataprivacy/defaults.php');
+$title = get_string('setdefaults', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$levels = \context_helper::get_all_levels();
+// They are set through the context level site and user.
+unset($levels[CONTEXT_SYSTEM]);
+unset($levels[CONTEXT_USER]);
+
+$customdata = [
+    'levels' => $levels,
+    'purposes' => \tool_dataprivacy\api::get_purposes(),
+    'categories' => \tool_dataprivacy\api::get_categories(),
+];
+$form = new \tool_dataprivacy\form\defaults($PAGE->url->out(false), $customdata);
+
+$toform = new stdClass();
+foreach ($levels as $level => $classname) {
+    list($purposevar, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+    $toform->{$purposevar} = get_config('tool_dataprivacy', $purposevar);
+    $toform->{$categoryvar} = get_config('tool_dataprivacy', $categoryvar);
+}
+$form->set_data($toform);
+
+$returnurl = new \moodle_url('/admin/tool/dataprivacy/dataregistry.php');
+if ($form->is_cancelled()) {
+    redirect($returnurl);
+} else if ($data = $form->get_data()) {
+
+    foreach ($levels as $level => $classname) {
+
+        list($purposevar, $categoryvar) = \tool_dataprivacy\data_registry::var_names_from_context($classname);
+
+        if (isset($data->{$purposevar})) {
+            set_config($purposevar, $data->{$purposevar}, 'tool_dataprivacy');
+        }
+        if (isset($data->{$categoryvar})) {
+            set_config($categoryvar, $data->{$categoryvar}, 'tool_dataprivacy');
+        }
+    }
+    redirect($returnurl, get_string('defaultssaved', 'tool_dataprivacy'),
+        0, \core\output\notification::NOTIFY_SUCCESS);
+}
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+$form->display();
+echo $output->footer();
@@ -0,0 +1,60 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage categories.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+
+require_login(null, false);
+
+$id = optional_param('id', 0, PARAM_INT);
+
+$url = new \moodle_url('/admin/tool/dataprivacy/editcategory.php', array('id' => $id));
+if ($id) {
+    $title = get_string('editcategory', 'tool_dataprivacy');
+} else {
+    $title = get_string('addcategory', 'tool_dataprivacy');
+}
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$category = new \tool_dataprivacy\category($id);
+$form = new \tool_dataprivacy\form\category($PAGE->url->out(false),
+    array('persistent' => $category, 'showbuttons' => true));
+
+$returnurl = new \moodle_url('/admin/tool/dataprivacy/categories.php');
+if ($form->is_cancelled()) {
+    redirect($returnurl);
+} else if ($data = $form->get_data()) {
+    if (empty($data->id)) {
+        \tool_dataprivacy\api::create_category($data);
+        $messagesuccess = get_string('categorycreated', 'tool_dataprivacy');
+    } else {
+        \tool_dataprivacy\api::update_category($data);
+        $messagesuccess = get_string('categoryupdated', 'tool_dataprivacy');
+    }
+    redirect($returnurl, $messagesuccess, 0, \core\output\notification::NOTIFY_SUCCESS);
+}
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+$form->display();
+echo $output->footer();
@@ -0,0 +1,61 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage purposes.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+
+require_login(null, false);
+
+$id = optional_param('id', 0, PARAM_INT);
+
+$url = new \moodle_url('/admin/tool/dataprivacy/editpurpose.php', array('id' => $id));
+if ($id) {
+    $title = get_string('editpurpose', 'tool_dataprivacy');
+} else {
+    $title = get_string('addpurpose', 'tool_dataprivacy');
+}
+
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$purpose = new \tool_dataprivacy\purpose($id);
+$form = new \tool_dataprivacy\form\purpose($PAGE->url->out(false),
+    array('persistent' => $purpose, 'showbuttons' => true));
+
+$returnurl = new \moodle_url('/admin/tool/dataprivacy/purposes.php');
+if ($form->is_cancelled()) {
+    redirect($returnurl);
+} else if ($data = $form->get_data()) {
+    if (empty($data->id)) {
+        \tool_dataprivacy\api::create_purpose($data);
+        $messagesuccess = get_string('purposecreated', 'tool_dataprivacy');
+    } else {
+        \tool_dataprivacy\api::update_purpose($data);
+        $messagesuccess = get_string('purposeupdated', 'tool_dataprivacy');
+    }
+    redirect($returnurl, $messagesuccess, 0, \core\output\notification::NOTIFY_SUCCESS);
+}
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+$form->display();
+echo $output->footer();
@@ -0,0 +1,262 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'tool_dataprivacy'
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 onwards Jun Pataleta
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$string['pluginname'] = 'Data privacy';
+$string['pluginname_help'] = 'Data privacy plugin';
+$string['activitiesandresources'] = 'Activities and resources';
+$string['addcategory'] = 'Add category';
+$string['addpurpose'] = 'Add purpose';
+$string['approve'] = 'Approve';
+$string['approverequest'] = 'Approve request';
+$string['cachedef_purpose'] = 'Data purposes';
+$string['cachedef_contextlevel'] = 'Context levels purpose and category';
+$string['cancelrequest'] = 'Cancel request';
+$string['cancelrequestconfirmation'] = 'Do you really want cancel this data request?';
+$string['categories'] = 'Categories';
+$string['category'] = 'Category';
+$string['category_help'] = 'A category in the data registry describes a type of data. A new category may be added, or if Inherit is selected, the data category from a higher context is applied. Contexts are (from low to high): Blocks > Activity modules > Courses > Course categories > Site.';
+$string['categorycreated'] = 'Category created';
+$string['categorydefault'] = 'Default category';
+$string['categorydefault_help'] = 'The default category is the data category applied to any new instances. If Inherit is selected, the data category from a higher context is applied. Contexts are (from low to high): Blocks > Activity modules > Courses > Course categories > User > Site.';
+$string['categorieslist'] = 'List of data categories';
+$string['categoryupdated'] = 'Category updated';
+$string['close'] = 'Close';
+$string['compliant'] = 'Compliant';
+$string['confirmapproval'] = 'Do you really want to approve this data request?';
+$string['confirmcompletion'] = 'Do you really want to mark this user enquiry as complete?';
+$string['confirmcontextdeletion'] = 'Do you really want to confirm the deletion of the selected contexts? This will also delete all of the user data for their respective sub-contexts.';
+$string['confirmdenial'] = 'Do you really want deny this data request?';
+$string['contactdataprotectionofficer'] = 'Contact the privacy officer';
+$string['contactdataprotectionofficer_desc'] = 'If enabled, users will be able to contact the privacy officer and make a data request via a link on their profile page.';
+$string['contextlevelname10'] = 'Site';
+$string['contextlevelname30'] = 'Users';
+$string['contextlevelname40'] = 'Course categories';
+$string['contextlevelname50'] = 'Courses';
+$string['contextlevelname70'] = 'Activity modules';
+$string['contextlevelname80'] = 'Blocks';
+$string['contextpurposecategorysaved'] = 'Purpose and category saved.';
+$string['contactdpoviaprivacypolicy'] = 'Please contact the privacy officer as described in the privacy policy.';
+$string['createcategory'] = 'Create data category';
+$string['createpurpose'] = 'Create data purpose';
+$string['datadeletion'] = 'Data deletion';
+$string['datadeletionpagehelp'] = 'Data for which the retention period has expired are listed here. Please review and confirm data deletion, which will then be executed by the "Delete expired contexts" scheduled task.';
+$string['dataprivacy:makedatarequestsforchildren'] = 'Make data requests for minors';
+$string['dataprivacy:managedatarequests'] = 'Manage data requests';
+$string['dataprivacy:managedataregistry'] = 'Manage data registry';
+$string['dataprivacy:downloadownrequest'] = 'Download your own exported data';
+$string['dataprivacy:downloadallrequests'] = 'Download exported data for everyone';
+$string['dataregistry'] = 'Data registry';
+$string['dataregistryinfo'] = 'The data registry enables categories (types of data) and purposes (the reasons for processing data) to be set for all content on the site - from users and courses down to activities and blocks. For each purpose, a retention period may be set. When a retention period has expired, the data is flagged and listed for deletion, awaiting admin confirmation.';
+$string['datarequestcreatedforuser'] = 'Data request created for {$a}';
+$string['datarequestemailsubject'] = 'Data request: {$a}';
+$string['datarequests'] = 'Data requests';
+$string['datecomment'] = '[{$a->date}]: ' . PHP_EOL . ' {$a->comment}';
+$string['daterequested'] = 'Date requested';
+$string['daterequesteddetail'] = 'Date requested:';
+$string['defaultsinfo'] = 'Default categories and purposes are applied to all newly created instances.';
+$string['deletecategory'] = 'Delete category';
+$string['deletecategorytext'] = 'Are you sure you want to delete the category \'{$a}\'?';
+$string['deleteexpiredcontextstask'] = 'Delete expired contexts';
+$string['deleteexpireddatarequeststask'] = 'Delete files from completed data requests that have expired';
+$string['deletepurpose'] = 'Delete purpose';
+$string['deletepurposetext'] = 'Are you sure you want to delete the purpose \'{$a}\'?';
+$string['defaultssaved'] = 'Defaults saved';
+$string['deny'] = 'Deny';
+$string['denyrequest'] = 'Deny request';
+$string['download'] = 'Download';
+$string['downloadexpireduser'] = 'Download has expired. Submit a new request if you wish to export your personal data.';
+$string['dporolemapping'] = 'Privacy officer role mapping';
+$string['dporolemapping_desc'] = 'The privacy officer can manage data requests. The capability tool/dataprivacy:managedatarequests must be allowed for a role to be listed as a privacy officer role mapping option.';
+$string['editcategories'] = 'Edit categories';
+$string['editcategory'] = 'Edit category';
+$string['editcategories'] = 'Edit categories';
+$string['editpurpose'] = 'Edit purpose';
+$string['editpurposes'] = 'Edit purposes';
+$string['effectiveretentionperiodcourse'] = '{$a} (after the course end date)';
+$string['effectiveretentionperioduser'] = '{$a} (since the last time the user accessed the site)';
+$string['emailsalutation'] = 'Dear {$a},';
+$string['errorinvalidrequeststatus'] = 'Invalid request status!';
+$string['errorinvalidrequesttype'] = 'Invalid request type!';
+$string['errornocapabilitytorequestforothers'] = 'User {$a->requestedby} doesn\'t have the capability to make a data request on behalf of user {$a->userid}';
+$string['errornoexpiredcontexts'] = 'There are no expired contexts to process';
+$string['errorcontexthasunexpiredchildren'] = 'The context "{$a}" still has sub-contexts that have not yet expired. No contexts have been flagged for deletion.';
+$string['errorrequestalreadyexists'] = 'You already have an ongoing request.';
+$string['errorrequestnotfound'] = 'Request not found';
+$string['errorrequestnotwaitingforapproval'] = 'The request is not awaiting approval. Either it is not yet ready or it has already been processed.';
+$string['errorsendingmessagetodpo'] = 'An error was encountered while trying to send a message to {$a}.';
+$string['exceptionnotificationsubject'] = 'Exception occurred while processing privacy data';
+$string['exceptionnotificationbody'] = '<p>Exception occurred while calling <b>{$a->fullmethodname}</b>.<br>This means that plugin <b>{$a->component}</b> did not complete the processing of data. The following exception information may be passed on to the plugin developer:</p><pre>{$a->message}<br>
+
+{$a->backtrace}</pre>';
+$string['expiredretentionperiodtask'] = 'Expired retention period';
+$string['expiry'] = 'Expiry';
+$string['expandplugin'] = 'Expand and collapse plugin.';
+$string['expandplugintype'] = 'Expand and collapse plugin type.';
+$string['explanationtitle'] = 'Icons used on this page and what they mean.';
+$string['external'] = 'Additional';
+$string['externalexplanation'] = 'An additional plugin installed on this site.';
+$string['filteroption'] = '{$a->category}: {$a->name}';
+$string['filters'] = 'Filters';
+$string['frontpagecourse'] = 'Front page course';
+$string['gdpr_art_6_1_a_description'] = 'The data subject has given consent to the processing of his or her personal data for one or more specific purposes';
+$string['gdpr_art_6_1_a_name'] = 'Consent (GDPR Art. 6.1(a))';
+$string['gdpr_art_6_1_b_description'] = 'Processing is necessary for the performance of a contract to which the data subject is party or in order to take steps at the request of the data subject prior to entering into a contract';
+$string['gdpr_art_6_1_b_name'] = 'Contract (GDPR Art. 6.1(b))';
+$string['gdpr_art_6_1_c_description'] = 'Processing is necessary for compliance with a legal obligation to which the controller is subject';
+$string['gdpr_art_6_1_c_name'] = 'Legal obligation (GDPR Art 6.1(c))';
+$string['gdpr_art_6_1_d_description'] = 'Processing is necessary in order to protect the vital interests of the data subject or of another natural person';
+$string['gdpr_art_6_1_d_name'] = 'Vital interests (GDPR Art. 6.1(d))';
+$string['gdpr_art_6_1_e_description'] = 'Processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller';
+$string['gdpr_art_6_1_e_name'] = 'Public task (GDPR Art. 6.1(e))';
+$string['gdpr_art_6_1_f_description'] = 'Processing is necessary for the purposes of the legitimate interests pursued by the controller or  by a third party, except where such interests are overridden by the interests or fundamental rights and freedoms of the data subject which require protection of personal data, in particular where the data subject is a child';
+$string['gdpr_art_6_1_f_name'] = 'Legitimate interests (GDPR Art. 6.1(f))';
+$string['gdpr_art_9_2_a_description'] = 'The data subject has given explicit consent to the processing of those personal data for one or more specified purposes, except where Union or Member State law provide that the prohibition referred to in paragraph 1 of GDPR Article 9 may not be lifted by the data subject';
+$string['gdpr_art_9_2_a_name'] = 'Explicit consent (GDPR Art. 9.2(a))';
+$string['gdpr_art_9_2_b_description'] = 'Processing is necessary for the purposes of carrying out the obligations and exercising specific rights of the controller or of the data subject in the field of employment and social security and social protection law in so far as it is authorised by Union or Member State law or a collective agreement pursuant to Member State law providing for appropriate safeguards for the fundamental rights and the interests of the data subject';
+$string['gdpr_art_9_2_b_name'] = 'Employment and social security/protection law (GDPR Art. 9.2(b))';
+$string['gdpr_art_9_2_c_description'] = 'Processing is necessary to protect the vital interests of the data subject or of another natural person where the data subject is physically or legally incapable of giving consent';
+$string['gdpr_art_9_2_c_name'] = 'Protection of vital interests (GDPR Art. 9.2(c))';
+$string['gdpr_art_9_2_d_description'] = 'Processing is carried out in the course of its legitimate activities with appropriate safeguards by a foundation, association or any other not-for-profit body with a political, philosophical, religious or trade-union aim and on condition that the processing relates solely to the members or to former members of the body or to persons who have regular contact with it in connection with its purposes and that the personal data are not disclosed outside that body without the consent of the data subjects';
+$string['gdpr_art_9_2_d_name'] = 'Legitimate activities regarding the members/close contacts  of a foundation, association or other not-for-profit body (GDPR Art. 9.2(d))';
+$string['gdpr_art_9_2_e_description'] = 'Processing relates to personal data which are manifestly made public by the data subject';
+$string['gdpr_art_9_2_e_name'] = 'Data made public by the data subject (GDPR Art. 9.2(e))';
+$string['gdpr_art_9_2_f_description'] = 'Processing is necessary for the establishment, exercise or defence of legal claims or whenever courts are acting in their judicial capacity';
+$string['gdpr_art_9_2_f_name'] = 'Legal claims and court actions (GDPR Art. 9.2(f))';
+$string['gdpr_art_9_2_g_description'] = 'Processing is necessary for reasons of substantial public interest, on the basis of Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject';
+$string['gdpr_art_9_2_g_name'] = 'Substantial public interest (GDPR Art. 9.2(g))';
+$string['gdpr_art_9_2_h_description'] = 'Processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3 of GDPR Article 9';
+$string['gdpr_art_9_2_h_name'] = 'Medical purposes (GDPR Art. 9.2(h))';
+$string['gdpr_art_9_2_i_description'] = 'Processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy';
+$string['gdpr_art_9_2_i_name'] = 'Public health (GDPR Art. 9.2(i))';
+$string['gdpr_art_9_2_j_description'] = 'Processing is necessary for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes in accordance with Article 89(1) based on Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject';
+$string['gdpr_art_9_2_j_name'] = 'Public interest, or scientific/historical/statistical research (GDPR Art. 9.2(j))';
+$string['hide'] = 'Collapse all';
+$string['httpwarning'] = 'Any data downloaded from this site may not be encrypted. Please contact your system administrator and request that they install SSL on this site.';
+$string['inherit'] = 'Inherit';
+$string['lawfulbases'] = 'Lawful bases';
+$string['lawfulbases_help'] = 'Select at least one option that will serve as the lawful basis for processing personal data. For details on these lawful bases, please see <a href="https://gdpr-info.eu/art-6-gdpr/" target="_blank">GDPR Art. 6.1</a>';
+$string['markcomplete'] = 'Mark as complete';
+$string['markedcomplete'] = 'Your enquiry has been marked as complete by the privacy officer.';
+$string['messageprovider:contactdataprotectionofficer'] = 'Data requests';
+$string['messageprovider:datarequestprocessingresults'] = 'Data request processing results';
+$string['messageprovider:notifyexceptions'] = 'Data requests exceptions notifications';
+$string['message'] = 'Message';
+$string['messagelabel'] = 'Message:';
+$string['moduleinstancename'] = '{$a->instancename} ({$a->modulename})';
+$string['mypersonaldatarequests'] = 'My personal data requests';
+$string['nameandparent'] = '{$a->parent} / {$a->name}';
+$string['nameemail'] = '{$a->name} ({$a->email})';
+$string['nchildren'] = '{$a} children';
+$string['newrequest'] = 'New request';
+$string['nodatarequests'] = 'There are no data requests';
+$string['nodatarequestsmatchingfilter'] = 'There are no data requests matching the given filter';
+$string['noactivitiestoload'] = 'No activities';
+$string['noassignedroles'] = 'No assigned roles in this context';
+$string['noblockstoload'] = 'No blocks';
+$string['nocategories'] = 'There are no categories yet';
+$string['nocoursestoload'] = 'No activities';
+$string['noexpiredcontexts'] = 'This context level has no data for which the retention period has expired.';
+$string['nofiltersapplied'] = 'No filters applied';
+$string['nopersonaldatarequests'] = 'You don\'t have any personal data requests';
+$string['nopurposes'] = 'There are no purposes yet';
+$string['nosubjectaccessrequests'] = 'There are no data requests that you need to act on';
+$string['nosystemdefaults'] = 'Site purpose and category have not yet been defined.';
+$string['notset'] = 'Not set (use the default value)';
+$string['pluginregistry'] = 'Plugin privacy registry';
+$string['pluginregistrytitle'] = 'Plugin privacy compliance registry';
+$string['privacy'] = 'Privacy';
+$string['privacyofficeronly'] = 'Only users who are assigned a privacy officer role ({$a}) have access to this content';
+$string['privacy:metadata:preference:tool_dataprivacy_request-filters'] = 'The filters currently applied to the data requests page.';
+$string['privacy:metadata:request'] = 'Information from personal data requests (subject access and deletion requests) made for this site.';
+$string['privacy:metadata:request:comments'] = 'Any user comments accompanying the request.';
+$string['privacy:metadata:request:userid'] = 'The ID of the user to whom the request belongs';
+$string['privacy:metadata:request:requestedby'] = 'The ID of the user making the request, if made on behalf of another user.';
+$string['privacy:metadata:request:dpocomment'] = 'Any comments made by the site\'s privacy officer regarding the request.';
+$string['privacy:metadata:request:timecreated'] = 'The timestamp indicating when the request was made by the user.';
+$string['privacyrequestexpiry'] = 'Data request expiry';
+$string['privacyrequestexpiry_desc'] = 'The amount of time that approved data requests will be available for download before expiring. 0 means no time limit.';
+$string['protected'] = 'Protected';
+$string['protectedlabel'] = 'The retention of this data has a higher legal precedent over a user\'s request to be forgotten. This data will only be deleted after the retention period has expired.';
+$string['purpose'] = 'Purpose';
+$string['purpose_help'] = 'The purpose describes the reason for processing the data. A new purpose may be added, or if Inherit is selected, the purpose from a higher context is applied. Contexts are (from low to high): Blocks > Activity modules > Courses > Course categories > User > Site.';
+$string['purposecreated'] = 'Purpose created';
+$string['purposedefault'] = 'Default purpose';
+$string['purposedefault_help'] = 'The default purpose is the purpose which is applied to any new instances. If Inherit is selected, the purpose from a higher context is applied. Contexts are (from low to high): Blocks > Activity modules > Courses > Course categories > User > Site.';
+$string['purposes'] = 'Purposes';
+$string['purposeslist'] = 'List of data purposes';
+$string['purposeupdated'] = 'Purpose updated';
+$string['replyto'] = 'Reply to';
+$string['requestactions'] = 'Actions';
+$string['requestapproved'] = 'The request has been approved';
+$string['requestby'] = 'Requested by';
+$string['requestbydetail'] = 'Requested by:';
+$string['requestcomments'] = 'Comments';
+$string['requestcomments_help'] = 'This box enables you to enter any further details about your data request.';
+$string['requestdenied'] = 'The request has been denied';
+$string['requestemailintro'] = 'You have received a data request:';
+$string['requestfor'] = 'Requesting for';
+$string['requestmarkedcomplete'] = 'The request has been marked as complete';
+$string['requeststatus'] = 'Status';
+$string['requestsubmitted'] = 'Your request has been submitted to the privacy officer';
+$string['requesttype'] = 'Type';
+$string['requesttypeuser'] = '{$a->typename} ({$a->user})';
+$string['requesttype_help'] = 'Select the reason why you would like to contact the privacy officer';
+$string['requesttypedelete'] = 'Delete all of my personal data';
+$string['requesttypedeleteshort'] = 'Delete';
+$string['requesttypeexport'] = 'Export all of my personal data';
+$string['requesttypeexportshort'] = 'Export';
+$string['requesttypeothers'] = 'General inquiry';
+$string['requesttypeothersshort'] = 'Message';
+$string['requiresattention'] = 'Requires attention.';
+$string['requiresattentionexplanation'] = 'This plugin does not implement the Moodle privacy API. If this plugin stores any personal data it will not be able to be exported or deleted through Moodle\'s privacy system.';
+$string['resultdeleted'] = 'You recently requested to have your account and personal data in {$a} to be deleted. This process has been completed and you will no longer be able to log in.';
+$string['resultdownloadready'] = 'Your copy of your personal data in {$a} that you recently requested is now available for download. Please click on the link below to go to the download page.';
+$string['reviewdata'] = 'Review data';
+$string['retentionperiod'] = 'Retention period';
+$string['retentionperiod_help'] = 'The retention period specifies the length of time that data should be kept for. When the retention period has expired, the data is flagged and listed for deletion, awaiting admin confirmation.';
+$string['retentionperiodnotdefined'] = 'No retention period was defined';
+$string['retentionperiodzero'] = 'No retention period';
+$string['send'] = 'Send';
+$string['sensitivedatareasons'] = 'Sensitive personal data processing reasons';
+$string['sensitivedatareasons_help'] = 'Select one or more applicable reasons that exempts the prohibition of processing sensitive personal data tied to this purpose. For more information, please see  <a href="https://gdpr-info.eu/art-9-gdpr/" target="_blank">GDPR Art. 9.2</a>';
+$string['setdefaults'] = 'Set defaults';
+$string['statusapproved'] = 'Approved';
+$string['statusawaitingapproval'] = 'Awaiting approval';
+$string['statuscancelled'] = 'Cancelled';
+$string['statuscomplete'] = 'Complete';
+$string['statusready'] = 'Download ready';
+$string['statusdeleted'] = 'Deleted';
+$string['statusdetail'] = 'Status:';
+$string['statusexpired'] = 'Expired';
+$string['statuspreprocessing'] = 'Pre-processing';
+$string['statusprocessing'] = 'Processing';
+$string['statuspending'] = 'Pending';
+$string['statusrejected'] = 'Rejected';
+$string['subjectscope'] = 'Subject scope';
+$string['subjectscope_help'] = 'The subject scope lists the roles which may be assigned in this context.';
+$string['user'] = 'User';
+$string['viewrequest'] = 'View the request';
+$string['visible'] = 'Expand all';
@@ -0,0 +1,218 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Data privacy plugin library
+ * @package   tool_dataprivacy
+ * @copyright 2018 onwards Jun Pataleta
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+use core_user\output\myprofile\tree;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Add nodes to myprofile page.
+ *
+ * @param tree $tree Tree object
+ * @param stdClass $user User object
+ * @param bool $iscurrentuser
+ * @param stdClass $course Course object
+ * @return bool
+ * @throws coding_exception
+ * @throws dml_exception
+ * @throws moodle_exception
+ */
+function tool_dataprivacy_myprofile_navigation(tree $tree, $user, $iscurrentuser, $course) {
+    global $PAGE, $USER;
+
+    // Get the Privacy and policies category.
+    if (!array_key_exists('privacyandpolicies', $tree->__get('categories'))) {
+        // Create the category.
+        $categoryname = get_string('privacyandpolicies', 'admin');
+        $category = new core_user\output\myprofile\category('privacyandpolicies', $categoryname, 'contact');
+        $tree->add_category($category);
+    } else {
+        // Get the existing category.
+        $category = $tree->__get('categories')['privacyandpolicies'];
+    }
+
+    // Contact data protection officer link.
+    if (\tool_dataprivacy\api::can_contact_dpo() && $iscurrentuser) {
+        $renderer = $PAGE->get_renderer('tool_dataprivacy');
+        $content = $renderer->render_contact_dpo_link($USER->email);
+        $node = new core_user\output\myprofile\node('privacyandpolicies', 'contactdpo', null, null, null, $content);
+        $category->add_node($node);
+        $PAGE->requires->js_call_amd('tool_dataprivacy/myrequestactions', 'init');
+
+        $url = new moodle_url('/admin/tool/dataprivacy/mydatarequests.php');
+        $node = new core_user\output\myprofile\node('privacyandpolicies', 'datarequests',
+            get_string('datarequests', 'tool_dataprivacy'), null, $url);
+        $category->add_node($node);
+    }
+
+    // Add the Privacy category to the tree if it's not empty and it doesn't exist.
+    $nodes = $category->nodes;
+    if (!empty($nodes)) {
+        if (!array_key_exists('privacyandpolicies', $tree->__get('categories'))) {
+            $tree->add_category($category);
+        }
+        return true;
+    }
+
+    return false;
+}
+
+/**
+ * Fragment to add a new purpose.
+ *
+ * @param array $args The fragment arguments.
+ * @return string The rendered mform fragment.
+ */
+function tool_dataprivacy_output_fragment_addpurpose_form($args) {
+
+    $formdata = [];
+    if (!empty($args['jsonformdata'])) {
+        $serialiseddata = json_decode($args['jsonformdata']);
+        parse_str($serialiseddata, $formdata);
+    }
+
+    $persistent = new \tool_dataprivacy\purpose();
+    $mform = new \tool_dataprivacy\form\purpose(null, ['persistent' => $persistent],
+        'post', '', null, true, $formdata);
+
+    if (!empty($args['jsonformdata'])) {
+        // Show errors if data was received.
+        $mform->is_validated();
+    }
+
+    return $mform->render();
+}
+
+/**
+ * Fragment to add a new category.
+ *
+ * @param array $args The fragment arguments.
+ * @return string The rendered mform fragment.
+ */
+function tool_dataprivacy_output_fragment_addcategory_form($args) {
+
+    $formdata = [];
+    if (!empty($args['jsonformdata'])) {
+        $serialiseddata = json_decode($args['jsonformdata']);
+        parse_str($serialiseddata, $formdata);
+    }
+
+    $persistent = new \tool_dataprivacy\category();
+    $mform = new \tool_dataprivacy\form\category(null, ['persistent' => $persistent],
+        'post', '', null, true, $formdata);
+
+    if (!empty($args['jsonformdata'])) {
+        // Show errors if data was received.
+        $mform->is_validated();
+    }
+
+    return $mform->render();
+}
+
+/**
+ * Fragment to edit a context purpose and category.
+ *
+ * @param array $args The fragment arguments.
+ * @return string The rendered mform fragment.
+ */
+function tool_dataprivacy_output_fragment_context_form($args) {
+    global $PAGE;
+
+    $contextid = $args[0];
+
+    $context = \context_helper::instance_by_id($contextid);
+    $customdata = \tool_dataprivacy\form\context_instance::get_context_instance_customdata($context);
+
+    if (!empty($customdata['purposeretentionperiods'])) {
+        $PAGE->requires->js_call_amd('tool_dataprivacy/effective_retention_period', 'init',
+            [$customdata['purposeretentionperiods']]);
+    }
+    $mform = new \tool_dataprivacy\form\context_instance(null, $customdata);
+    return $mform->render();
+}
+
+/**
+ * Fragment to edit a contextlevel purpose and category.
+ *
+ * @param array $args The fragment arguments.
+ * @return string The rendered mform fragment.
+ */
+function tool_dataprivacy_output_fragment_contextlevel_form($args) {
+    global $PAGE;
+
+    $contextlevel = $args[0];
+    $customdata = \tool_dataprivacy\form\contextlevel::get_contextlevel_customdata($contextlevel);
+
+    if (!empty($customdata['purposeretentionperiods'])) {
+        $PAGE->requires->js_call_amd('tool_dataprivacy/effective_retention_period', 'init',
+            [$customdata['purposeretentionperiods']]);
+    }
+
+    $mform = new \tool_dataprivacy\form\contextlevel(null, $customdata);
+    return $mform->render();
+}
+
+/**
+ * Serves any files associated with the data privacy settings.
+ *
+ * @param stdClass $course Course object
+ * @param stdClass $cm Course module object
+ * @param context $context Context
+ * @param string $filearea File area for data privacy
+ * @param array $args Arguments
+ * @param bool $forcedownload If we are forcing the download
+ * @param array $options More options
+ * @return bool Returns false if we don't find a file.
+ */
+function tool_dataprivacy_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = array()) {
+    if ($context->contextlevel == CONTEXT_USER) {
+        // Make sure the user is logged in.
+        require_login(null, false);
+
+        // Get the data request ID. This should be the first element of the $args array.
+        $itemid = $args[0];
+        // Fetch the data request object. An invalid ID will throw an exception.
+        $datarequest = new \tool_dataprivacy\data_request($itemid);
+
+        // Check if user is allowed to download it.
+        if (!\tool_dataprivacy\api::can_download_data_request_for_user($context->instanceid, $datarequest->get('requestedby'))) {
+            return false;
+        }
+
+        // Make the file unavailable if it has expired.
+        if (\tool_dataprivacy\data_request::is_expired($datarequest)) {
+            send_file_not_found();
+        }
+
+        // All good. Serve the exported data.
+        $fs = get_file_storage();
+        $relativepath = implode('/', $args);
+        $fullpath = "/$context->id/tool_dataprivacy/$filearea/$relativepath";
+        if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
+            return false;
+        }
+        send_stored_file($file, 0, 0, $forcedownload, $options);
+    } else {
+        send_file_not_found();
+    }
+}
@@ -0,0 +1,63 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the contact form to the site's Data Protection Officer
+ *
+ * @copyright 2018 onwards Jun Pataleta
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once("../../../config.php");
+require_once('lib.php');
+
+$courseid = optional_param('course', 0, PARAM_INT);
+
+$url = new moodle_url('/admin/tool/dataprivacy/mydatarequests.php');
+if ($courseid) {
+    $url->param('course', $courseid);
+}
+
+$PAGE->set_url($url);
+
+require_login();
+if (isguestuser()) {
+    print_error('noguest');
+}
+
+$usercontext = context_user::instance($USER->id);
+$PAGE->set_context($usercontext);
+
+// Return URL.
+$params = ['id' => $USER->id];
+if ($courseid) {
+    $params['course'] = $courseid;
+}
+$returnurl = new moodle_url('/user/profile.php', $params);
+
+$title = get_string('datarequests', 'tool_dataprivacy');
+$PAGE->set_heading($title);
+$PAGE->set_title($title);
+echo $OUTPUT->header();
+echo $OUTPUT->heading($title);
+
+$requests = tool_dataprivacy\api::get_data_requests($USER->id, [], [], 'timecreated DESC');
+$requestlist = new tool_dataprivacy\output\my_data_requests_page($requests);
+$requestlistoutput = $PAGE->get_renderer('tool_dataprivacy');
+echo $requestlistoutput->render($requestlist);
+
+echo $OUTPUT->footer();
@@ -0,0 +1,55 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Prints the compliance data registry main page.
+ *
+ * @copyright 2018 onwards Adrian Greeve <adriangreeve.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package tool_dataprivacy
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+require_once($CFG->dirroot . '/' . $CFG->admin . '/tool/dataprivacy/lib.php');
+
+require_login(null, false);
+
+$contextlevel = optional_param('contextlevel', CONTEXT_SYSTEM, PARAM_INT);
+$contextid = optional_param('contextid', 0, PARAM_INT);
+
+$url = new moodle_url('/' . $CFG->admin . '/tool/dataprivacy/pluginregistry.php');
+$title = get_string('pluginregistry', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title);
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+
+if (\tool_dataprivacy\api::is_site_dpo($USER->id)) {
+    // Get data!
+    $metadatatool = new \tool_dataprivacy\metadata_registry();
+    $metadata = $metadatatool->get_registry_metadata();
+
+    $dataregistry = new tool_dataprivacy\output\data_registry_compliance_page($metadata);
+
+    echo $output->render($dataregistry);
+} else {
+    $dponamestring = implode (', ', tool_dataprivacy\api::get_dpo_role_names());
+    $message = get_string('privacyofficeronly', 'tool_dataprivacy', $dponamestring);
+    echo $OUTPUT->notification($message, 'error');
+}
+
+echo $OUTPUT->footer();
@@ -0,0 +1,41 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This page lets users manage purposes.
+ *
+ * @package    tool_dataprivacy
+ * @copyright  2018 David Monllao
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../../config.php');
+
+require_login(null, false);
+
+$url = new moodle_url("/admin/tool/dataprivacy/purposes.php");
+$title = get_string('editpurposes', 'tool_dataprivacy');
+
+\tool_dataprivacy\page_helper::setup($url, $title, 'dataregistry');
+
+$output = $PAGE->get_renderer('tool_dataprivacy');
+echo $output->header();
+
+$purposes = \tool_dataprivacy\api::get_purposes();
+$renderable = new \tool_dataprivacy\output\purposes($purposes);
+
+echo $output->render($renderable);
+echo $output->footer();
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Eloy Lafuente (stronk7)	c37329dc10	Moodle release 3.3.8	2018-09-08 16:49:39 +02:00
AMOS bot	c3dbe66477	Automatically generated installer lang files	2018-09-08 00:07:55 +00:00
Jun Pataleta	3bfd32be9b	weekly release 3.3.7+	2018-09-07 11:11:40 +08:00
Jun Pataleta	85a42937b9	Merge branch 'install_33_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_33_STABLE	2018-09-07 11:11:11 +08:00
Jake Dallimore	c3db28fe90	Merge branch 'MDL-63302-33' of git://github.com/junpataleta/moodle into MOODLE_33_STABLE	2018-09-06 09:25:10 +08:00
Jun Pataleta	2f1c8a398b	MDL-63302 tool_dataprivacy: Increment version of the merged plugin This is to distinguish the versions available from the plugins directory from the versions that are part of Moodle standard distribution.	2018-09-06 08:54:23 +08:00
Eloy Lafuente (stronk7)	e7c034a8d8	Merge branch 'MDL-63292-33-policyversion' of git://github.com/mudrd8mz/moodle into MOODLE_33_STABLE	2018-09-05 21:10:48 +02:00
David Mudrák	5a6185300a	MDL-63292 tool_policy: Increment version of the merged plugin This is to distinguish the versions available from the plugins directory from the versions that are part of Moodle standard distribution.	2018-09-05 14:03:15 +02:00
Jake Dallimore	9ab746af27	MDL-62947 mod_feedback: fix feedback so it correctly uses forms API Feedback code was doing the following, which is incompatible with the sec-patched quickforms lib: - appending '[0]' to non-group element names, meaning type checks in getCleanType() were falling back to PARAM_RAW instead of PARAM_INT, and meaning _findValue() was comparing elements it thought to be arrays with scalar submit values (worked with eval() implementation as the 0th element of a string was the character, but not working when patched). - external unit tests incorrectly testing multichoice questions in the process_page tests - patched lib highlighted failures. It was also doing the following: - actively setting null as default element values instead of 0 for radio buttons and dropdowns (for 'not selected'). This is incompatible with more recent quickforms lib (see MDL-63070). - creating groups using addElement instead of addGroup - not recommended This patch addresses the above.	2018-09-05 12:14:05 +08:00
Jake Dallimore	a21f18e947	MDL-62947 core_form: fix remote code execution exploit in QuickForms Applies the patch found upstream: https://github.com/pear/HTML_QuickForm/commit/ d3a6d5c44dedf3c164c6c79198e4ef479bcedcd2 and make util methods static for php7 compatibility.	2018-09-05 12:14:05 +08:00
AMOS bot	711d42778a	Automatically generated installer lang files	2018-09-05 00:07:48 +00:00
Damyon Wiese	d2a497ee03	MDL-62748 course: maxsections is a limit For course formats shipped with core, maxsections should be a limit to the number of sections allowed in the course.	2018-09-04 14:40:43 +02:00
Mihail Geshoski	3f8dfe2ab7	MDL-62857 theme_boost: Better filtering on navbar / breadcrumbs	2018-09-04 14:40:43 +02:00
Tim Hunt	09cbca8566	MDL-62880 qtype_ddwtos: drop support for legacy import format It was more than 8 years since we wrote in that format.	2018-09-04 14:40:43 +02:00
David Monllao	1c2efd6f1b	Merge branch 'MDL-62342-33' of git://github.com/mihailges/moodle into MOODLE_33_STABLE	2018-09-04 14:34:19 +02:00
Jun Pataleta	751bdfd50d	Merge branch 'MDL-60901_33' of git://github.com/stronk7/moodle into MOODLE_33_STABLE	2018-09-04 10:17:54 +08:00
Eloy Lafuente (stronk7)	19c1e9845b	MDL-60901 environment: 3.6 requirements Changes include: - MySQL 5.6 is required. - PostgreSQL 8.4 is required. - Oracle 11.2 is required. - 64bits architecture is recommended.	2018-09-03 10:13:44 +02:00
Mihail Geshoski	64a736ee72	MDL-62342 privacy: Fix strings used in the consent on behalf modal	2018-09-03 13:02:16 +08:00
Mihail Geshoski	1f319dda3d	MDL-62342 privacy: Use singular/plural form in labels	2018-09-03 13:02:16 +08:00
AMOS bot	5790e87939	Automatically generated installer lang files	2018-09-02 00:07:46 +00:00
AMOS bot	40260a258f	Automatically generated installer lang files	2018-09-01 00:07:46 +00:00
Eloy Lafuente (stronk7)	86f3c074e9	weekly release 3.3.7+	2018-08-30 19:04:15 +02:00
Eloy Lafuente (stronk7)	cfac8bb5ab	Merge branch 'install_33_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_33_STABLE	2018-08-30 19:04:12 +02:00
Jake Dallimore	772afa0f43	Merge branch 'MDL-63094-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-08-30 13:10:45 +08:00
Andrew Nicols	111ec01643	MDL-63094 tool_policy: Replace '×' with '.close' This relates to MDL-59883, which was not backported to 33 and beyond.	2018-08-30 11:25:44 +08:00
AMOS bot	cf21130cc2	Automatically generated installer lang files	2018-08-30 00:08:24 +00:00
Eloy Lafuente (stronk7)	a454fd5f57	Merge branch 'MDL-63094-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-08-29 00:25:18 +02:00
Jun Pataleta	300e220dbc	MDL-63187 tool_dataprivacy: Reopen autocomplete on legal basis selection * The multiselect autocomplete element closes after selection on 33. The feature where it keeps open on multiselection has only been implemented since 34 and up. So to select another legal basis, we need to reopen the autocomplete element again.	2018-08-28 21:05:14 +08:00
Jake Dallimore	5432075187	Merge branch 'MDL-63101-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-08-28 16:56:32 +08:00
Eloy Lafuente (stronk7)	a51fa84f50	Merge branch 'MDL-62989-33' of git://github.com/mihailges/moodle into MOODLE_33_STABLE	2018-08-27 17:51:47 +02:00
Jun Pataleta	052d30081e	MDL-63187 tool_dataprivacy: Behat fixes for confirmation lang strings	2018-08-27 22:45:20 +08:00
David Monllao	ab883ad6b0	MDL-63187 tool_dataprivacy: Update delete purpose and category lang strings	2018-08-27 12:12:12 +02:00
David Monllao	6069d11046	Merge branch 'MDL-63187-33' of git://github.com/junpataleta/moodle into MOODLE_33_STABLE	2018-08-27 11:59:37 +02:00
Andrew Nicols	1875af2207	MDL-63101 cache: Improve accuracy of cache event invalidation	2018-08-27 14:44:42 +08:00
Mihail Geshoski	65b8d2ab7d	MDL-62989 privacy: Improve data request order for users	2018-08-24 15:35:23 +08:00
Jake Dallimore	b39379cb98	weekly release 3.3.7+	2018-08-24 13:08:51 +08:00
Jun Pataleta	c840b579cb	MDL-63187 tool_dataprivacy: Improve confirm message lang strings * Updated the delete confirmation messages so that the category/purpose names are shown in italics. This makes it easier for the privacy officer to see the category/purpose that is being deleted.	2018-08-23 16:59:13 +08:00
Jun Pataleta	784c21b116	MDL-63187 tool_dataprivacy: Behat tests for purposes/categories CRUD	2018-08-23 16:59:13 +08:00
Jun Pataleta	f423dd8ccf	MDL-63187 tool_dataprivacy: Fix delete button text * No need to add the purpose/category name for the delete button itself * Fix delete confirmation lang strings. * Add button titles to Add purpose/category buttons so they can be clicked on when running Behat tests.	2018-08-23 16:59:13 +08:00
Andrew Nicols	f5d57e74bf	MDL-63094 tool_policy: Fix the cookie banner to the bottom Floating banners cause issues with clickability in Behat as it is unable to understand that it cannot interact with the elements underneath the floating banner, or that it needs to scroll the page so that the required content is no longer beneath the floating banner. Changing the banner to be fixed to the bottom of the page during Behat runes is a reliable fix.	2018-08-22 11:00:08 +08:00
Andrew Nicols	e67669e638	MDL-63094 js: Do not check visibility before hiding backdrop It's possible for the backdrop to be created during the show, before the modal is actually fully shown. This check is unnecessary because the getBackdrop() function always returns a value and will always succeed.	2018-08-22 10:29:33 +08:00
Andrew Nicols	aa881b7717	MDL-63094 tool_policy: Fix race condition in modal display The way in which the modal was displayed meant that there were no pending JS items, whilst the modal was rendered, causing random behat fails. This JS has been restructured to create the Modal and pass it a set of Promises for both the title, and body.	2018-08-22 10:28:45 +08:00
Andrew Nicols	19a94ef923	Merge branch 'MDL-62660_33' of https://github.com/stronk7/moodle into MOODLE_33_STABLE	2018-08-22 08:05:03 +08:00
Eloy Lafuente (stronk7)	866d7a064a	MDL-62660 xmldb: fix tool_dataprivacy_request_>status to int(2) So the new defined statuses fit in the column for all databases.	2018-08-22 00:08:01 +02:00
Andrew Nicols	1d5b6e94ee	Merge branch 'MDL-62660-33' of git://github.com/junpataleta/moodle into MOODLE_33_STABLE	2018-08-21 11:14:34 +08:00
Jun Pataleta	014628c4c4	MDL-62660 tool_dataprivacy: Behat fix for data deletion	2018-08-21 10:39:12 +08:00
Jun Pataleta	61b0e103b7	MDL-62660 tool_dataprivacy: CI fixes	2018-08-21 09:52:59 +08:00
Jun Pataleta	2a0c44b56d	MDL-62660 phpunit: Remove setting of user when running adhoc tasks Before 3.4 tasks can't run as specific users.	2018-08-21 09:52:59 +08:00
Michael Hawkins	ab79c7bf95	MDL-62660 tool_dataprivacy: Behat additions for deletion and data expiry	2018-08-21 09:52:59 +08:00
Michael Hawkins	4415985085	MDL-62660 tool_dataprivacy: Add and update PHPUnit tests Updated tests with latest statuses. Added testing for request download expiry functionality and method. Added assign_site_dpo within a parent class for unit tests.	2018-08-21 09:52:59 +08:00
Michael Hawkins	83c83473f8	MDL-62660 tool_dataprivacy: Add scheduled task to expire data requests	2018-08-21 09:52:59 +08:00
Jun Pataleta	680b9186c7	MDL-62660 tool_dataprivacy: Fix version number in upgrade code	2018-08-21 09:52:59 +08:00
Michael Hawkins	3717d20a33	MDL-62660 tool_dataprivacy: Add ability to expire data requests Also replaced Completed status with situation specific statuses. Also improved UX on request pages in line with expiries and the aadditional statuses.	2018-08-21 09:52:59 +08:00
Andrew Nicols	e29b668d7b	MDL-62660 tool_dataprivacy: Add method for unit tests to run adhoc tasks	2018-08-21 09:52:59 +08:00
Eloy Lafuente (stronk7)	8987e225da	weekly release 3.3.7+	2018-08-17 17:37:34 +02:00
Eloy Lafuente (stronk7)	b96151e864	NOBUG: Fixed file access permissions	2018-08-17 17:37:34 +02:00
Eloy Lafuente (stronk7)	1c6f6505b9	Merge branch 'install_33_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_33_STABLE	2018-08-17 17:37:32 +02:00
Damyon Wiese	884aa7b9f7	MDL-62884 privacy: Additional fix for popper.js The older version of popper needs custom CSS to ensure the menus are visible without scrolling.	2018-08-17 16:08:09 +08:00
Damyon Wiese	082f2f7dd8	MDL-62884 privacy: Fix styles An action menu displayed inside a table needs to be tested on every theme. It is required to ensure that the menu displays correctly, even when it would display outside the scrollable region for the table.	2018-08-17 16:08:03 +08:00
Jake Dallimore	9bec7f417f	Merge branch 'MDL-63050-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-08-16 02:34:29 +02:00
Andrew Nicols	b3865f159b	Merge branch 'MDL-62600-33' of git://github.com/mickhawkins/moodle into MOODLE_33_STABLE	2018-08-16 02:34:26 +02:00
AMOS bot	f03a28c520	Automatically generated installer lang files	2018-08-16 00:08:36 +00:00
AMOS bot	68d882a927	Automatically generated installer lang files	2018-08-15 00:07:58 +00:00
Michael Hawkins	41b628707c	MDL-62600 tool_dataprivacy: Corrected availability of PO pages to admins	2018-08-14 13:20:14 +08:00
Karen Holland	2d287b27e3	MDL-62896 Privacy: External plugin Additional label update.	2018-08-14 08:06:14 +08:00
Andrew Nicols	b76d708315	Merge branch 'MDL-62799-33-2' of git://github.com/junpataleta/moodle into MOODLE_33_STABLE	2018-08-13 13:55:20 +08:00
Jun Pataleta	1f2972764b	MDL-62799 core: Add tool_dataprivacy to list of standard plugins	2018-08-13 12:45:35 +08:00
Jun Pataleta	2161e3294d	MDL-62799 tool_dataprivacy: Add new data request modal type * Add a new TYPE_ENQUIRY modal type for the data request modal AMD module in order for it to be able to render the appropriate template as required: 1. Use the tool_dataprivacy/data_request_modal template for data export/deletion requests; 2. Or use the tool_dataprivacy/mark_request_complete_modal template for general enquiries.	2018-08-13 12:27:07 +08:00
Jun Pataleta	898584944b	MDL-62799 tool_dataprivacy: Fix CiBoT complaints	2018-08-13 12:27:07 +08:00
Jun Pataleta	642ad98e28	MDL-62799 tool_dataprivacy: Move user generation within the test Patch originally from MDL-62962.	2018-08-13 12:26:46 +08:00
sam marshall	6892904225	MDL-62799 tool_dataprivacy: Add capabilities to control data downloads Patch originally from MDL-61652.	2018-08-13 12:26:30 +08:00
Jun Pataleta	5f7519ba19	MDL-62799 tool_dataprivacy: Behat tests for contacting PO Patch originally from MDL-62026.	2018-08-13 12:26:07 +08:00
Jun Pataleta	2c904a6c87	MDL-62799 tool_dataprivacy: Allow manual completion of general enquiries Patch originally from MDL-62026.	2018-08-13 12:25:34 +08:00
Jun Pataleta	91b38b5c30	MDL-62799 tool_dataprivacy: Merge the data privacy tool in 3.3	2018-08-13 09:22:49 +08:00
Eloy Lafuente (stronk7)	e60b5bd04d	weekly release 3.3.7+	2018-08-10 13:21:56 +02:00
Andrew Nicols	d54b8bb7ee	Merge branch 'MDL-62619_33' of git://github.com/stronk7/moodle into MOODLE_33_STABLE	2018-08-10 08:46:57 +08:00
Eloy Lafuente (stronk7)	a300c3479d	MDL-62619 privacy: Prevent action when boolean queries are involved Before the patch, queries like: SELECT 1 FROM dual UNION SELECT 2 FROM dual were failing badly, with everything but the first numeric element being ignored by the optimization. So, being conservative, now we reduce the query being analysed, ignoring any subquery, inline view (anything within parenthesis in general) and, in the remaining query, if a boolean query (UNION, MINUS, INTERSECT...) is found, we don't apply any optimization.	2018-08-09 16:12:58 +02:00
Eloy Lafuente (stronk7)	38174e03de	Merge branch 'MDL-62619-33-privacycontexts' of git://github.com/mudrd8mz/moodle into MOODLE_33_STABLE	2018-08-08 01:03:29 +02:00
Andrew Nicols	0d21b5a2dc	MDL-62800 behat: Correct path to P&P This commit was originally a part of MDL-62950	2018-08-07 14:12:51 +08:00
Andrew Nicols	a36a6e4491	Merge branch 'MDL-62800-33' of git://github.com/mihailges/moodle into MOODLE_33_STABLE	2018-08-07 12:14:25 +08:00
Mihail Geshoski	27621e4bfa	MDL-62800 tool_policy: Add policy plugin in standard_plugins_list()	2018-08-07 11:21:44 +08:00
sarjona	939ba8562b	MDL-62800 tool_policy: Merge the policy tool to 3.3 The following changes has been done from the original repo: - Remove README.md, LICENSE.md and .travis.yml - Review the version.php content, to look like a standard plugin - Adapt jquery-eu-cookie-law-popup.js and readme_moodle.txt to remove the eslint-ignore	2018-08-07 11:08:14 +08:00
Andrew Nicols	d94a35a5a4	weekly release 3.3.7+	2018-08-03 11:30:19 +08:00
Andrew Nicols	1f44dfad42	Merge branch 'install_33_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_33_STABLE	2018-08-03 11:30:16 +08:00
Andrew Nicols	62ba30c11f	MDL-63050 cachestore_redis: Update hExists to check empty	2018-08-02 11:06:05 +08:00
Andrew Nicols	663c41bf76	MDL-63050 redis: Make session check compatible with Redis 4.0	2018-08-02 11:06:05 +08:00
AMOS bot	ded79d63d8	Automatically generated installer lang files	2018-07-28 00:09:05 +00:00
David Mudrák	d6dcfee9f5	MDL-62619 privacy: Fix a missing alias in the blog provider class The new implementation revealed another existing bug that did not expose before due to coincidently same named table alias in the outer query.	2018-07-27 10:14:28 +02:00
David Mudrák	bb478e8ddd	MDL-62619 privacy: Fix some bits of performance improvements * We need to use is_numeric() in this case as is_int() would never return true. * Extend the supported cases, add support for SQL consisting just of numerical value or selectinga numerical constant. * Do not rely on any particulat letter case in provided SQL. * Add unit tests for the new method. Even when it is a protected one, it is an essential unit to be tested on its own.	2018-07-27 10:14:28 +02:00
Andrew Nicols	be6fc5b122	MDL-62619 privacy: Improve performance of contexts loading When possible, we want to use JOIN over WHERE IN. It is known that the later performs badly in MySQL.	2018-07-27 10:14:28 +02:00
Jun Pataleta	cad1e4f427	Merge branch 'MDL-62950-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-07-27 16:06:19 +08:00
Andrew Nicols	858cb072b1	MDL-62950 behat: Disable editing for boost test	2018-07-27 11:08:11 +08:00
Andrew Nicols	5ededd52c0	MDL-62950 behat: Correct path to P&P	2018-07-27 11:07:04 +08:00
Eloy Lafuente (stronk7)	cf31c73791	weekly release 3.3.7+	2018-07-26 19:56:40 +02:00
Eloy Lafuente (stronk7)	265894ee59	Merge branch 'install_33_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_33_STABLE	2018-07-26 19:56:37 +02:00
Jun Pataleta	f1a57a3181	Merge branch 'MDL-62653-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-07-26 10:58:07 +08:00
Andrew Nicols	ce48eff24e	MDL-62653 cron: Fix tab => whitespace	2018-07-26 10:57:22 +08:00
Jun Pataleta	008b92bd0a	Merge branch 'MDL-62653-33' of git://github.com/andrewnicols/moodle into MOODLE_33_STABLE	2018-07-26 10:46:27 +08:00
Andrew Nicols	fe8ca8b78d	MDL-62653 behat: Ensure that tasks run properly from behat	2018-07-26 09:52:00 +08:00
Andrew Nicols	e5fe5da40c	MDL-62653 cron: Move adhoc task to separate fn	2018-07-26 09:23:17 +08:00
Jun Pataleta	d8d35d7c1f	Merge branch 'MDL-62781-33' of git://github.com/junpataleta/moodle into MOODLE_33_STABLE	2018-07-18 10:03:46 +08:00
Jun Pataleta	680160dca4	MDL-62781 core_question: Remove unnecessary assertion	2018-07-18 10:00:05 +08:00
Tim Hunt	78315808b1	MDL-62781 question/privacy: fix tests with CodeRunner is installed The tests were assuming that no plugin ever created questions on install. Also change the tests to do the counting in the DB. That is more efficient.	2018-07-18 10:00:05 +08:00
AMOS bot	b67c98ca83	Automatically generated installer lang files	2018-07-18 00:07:51 +00:00
AMOS bot	d8eb85604f	Automatically generated installer lang files	2018-07-17 00:08:38 +00:00
				`@@ -0,0 +1 @@`
				define(["jquery","core/str","core/ajax","core/notification","core/modal_factory","core/modal_events","core/fragment"],function(a,b,c,d,e,f,g){var h={CATEGORY_LINK:'[data-add-element="category"]'},i=function(a){this.contextId=a;var c=[{key:"addcategory",component:"tool_dataprivacy"},{key:"save",component:"admin"}];this.strings=b.get_strings(c),this.registerEventListeners()};return i.prototype.contextId=0,i.prototype.strings=0,i.prototype.registerEventListeners=function(){var b=a(h.CATEGORY_LINK);b.on("click",function(){return this.strings.then(function(a){e.create({type:e.types.SAVE_CANCEL,title:a[0],body:""},b).done(function(b){this.setupFormModal(b,a[1])}.bind(this))}.bind(this)).fail(d.exception)}.bind(this))},i.prototype.getBody=function(a){var b=null;return"undefined"!=typeof a&&(b={jsonformdata:JSON.stringify(a)}),g.loadFragment("tool_dataprivacy","addcategory_form",this.contextId,b)},i.prototype.setupFormModal=function(a,b){a.setLarge(),a.setSaveButtonText(b),a.getRoot().on(f.hidden,this.destroy.bind(this)),a.setBody(this.getBody()),a.getRoot().on(f.save,this.submitForm.bind(this)),a.getRoot().on("submit","form",this.submitFormAjax.bind(this)),this.modal=a,a.show()},i.prototype.submitForm=function(a){a.preventDefault(),this.modal.getRoot().find("form").submit()},i.prototype.submitFormAjax=function(a){a.preventDefault();var b=this.modal.getRoot().find("form").serialize();c.call([{methodname:"tool_dataprivacy_create_category_form",args:{jsonformdata:JSON.stringify(b)},done:function(a){a.validationerrors?this.modal.setBody(this.getBody(b)):this.close()}.bind(this),fail:d.exception}])},i.prototype.close=function(){this.destroy(),document.location.reload()},i.prototype.destroy=function(){Y.use("moodle-core-formchangechecker",function(){M.core_formchangechecker.reset_form_dirty_state()}),this.modal.destroy()},i.prototype.removeListeners=function(){a(h.CATEGORY_LINK).off("click")},{getInstance:function(a){return new i(a)}}});
				`@@ -0,0 +1 @@`
				define(["jquery","core/ajax","core/notification","core/str","core/modal_factory","core/modal_events"],function(a,b,c,d,e,f){var g={DELETE:'[data-action="deletecategory"]'},h=function(){this.registerEvents()};return h.prototype.registerEvents=function(){a(g.DELETE).click(function(g){g.preventDefault();var h=a(this).data("id"),i=a(this).data("name"),j=[{key:"deletecategory",component:"tool_dataprivacy"},{key:"deletecategorytext",component:"tool_dataprivacy",param:i},{key:"delete"}];d.get_strings(j).then(function(d){var g=d[0],i=d[1],j=d[2];return e.create({title:g,body:i,type:e.types.SAVE_CANCEL}).then(function(d){return d.setSaveButtonText(j),d.getRoot().on(f.save,function(){var d={methodname:"tool_dataprivacy_delete_category",args:{id:h}};b.call([d])[0].done(function(b){b.result?a('tr[data-categoryid="'+h+'"]').remove():c.addNotification({message:b.warnings[0].message,type:"error"})}).fail(c.exception)}),d.getRoot().on(f.hidden,function(){d.destroy()}),d})}).done(function(a){a.show()}).fail(c.exception)})},{init:function(){return new h}}});
				`@@ -0,0 +1 @@`
				define(["jquery","core/notification","core/custom_interaction_events","core/modal","core/modal_registry","tool_dataprivacy/events"],function(a,b,c,d,e,f){var g=!1,h={APPROVE_BUTTON:'[data-action="approve"]',DENY_BUTTON:'[data-action="deny"]',COMPLETE_BUTTON:'[data-action="complete"]'},i=function(a){d.call(this,a)};return i.TYPE="tool_dataprivacy-data_request",i.TYPE_ENQUIRY="tool_dataprivacy-complete_request",i.prototype=Object.create(d.prototype),i.prototype.constructor=i,i.prototype.registerEventListeners=function(){d.prototype.registerEventListeners.call(this),this.getModal().on(c.events.activate,h.APPROVE_BUTTON,function(b,c){var d=a.Event(f.approve);this.getRoot().trigger(d,this),d.isDefaultPrevented()\|\|(this.hide(),c.originalEvent.preventDefault())}.bind(this)),this.getModal().on(c.events.activate,h.DENY_BUTTON,function(b,c){var d=a.Event(f.deny);this.getRoot().trigger(d,this),d.isDefaultPrevented()\|\|(this.hide(),c.originalEvent.preventDefault())}.bind(this)),this.getModal().on(c.events.activate,h.COMPLETE_BUTTON,function(b,c){var d=a.Event(f.complete);this.getRoot().trigger(d,this),d.isDefaultPrevented()\|\|(this.hide(),c.originalEvent.preventDefault())}.bind(this))},g\|\|(e.register(i.TYPE,i,"tool_dataprivacy/data_request_modal"),e.register(i.TYPE_ENQUIRY,i,"tool_dataprivacy/mark_request_complete_modal"),g=!0),i});
				`@@ -0,0 +1 @@`
				define(["jquery"],function(a){var b={PURPOSE_SELECT:"#id_purposeid",RETENTION_FIELD_BOOST:"#id_error_retention_current",RETENTION_FIELD_CLEAN:"#fitem_id_retention_current [data-fieldtype=static]"},c=function(a){this.purposeRetentionPeriods=a,this.registerEventListeners()},d=function(){a(b.PURPOSE_SELECT).off("change")};return c.prototype.purposeRetentionPeriods=[],c.prototype.registerEventListeners=function(){a(b.PURPOSE_SELECT).on("change",function(c){var d=a(c.currentTarget).val(),e=this.purposeRetentionPeriods[d],f=a(b.RETENTION_FIELD_CLEAN);if(f.length>0)f.text(e);else{var g=a(b.RETENTION_FIELD_BOOST),h=g.siblings();h.length>0&&h.text(e)}}.bind(this))},{init:function(a){return d(),new c(a)}}});
				`@@ -0,0 +1 @@`
				`define([],function(){return{approve:"tool_dataprivacy-data_request:approve",deny:"tool_dataprivacy-data_request:deny",complete:"tool_dataprivacy-data_request:complete"}});`
				`@@ -0,0 +1 @@`
				define(["jquery","core/url","core/str"],function(a,b,c){var d=a('<img alt="" src="'+b.imageUrl("t/expanded")+'"/>'),e=a('<img alt="" src="'+b.imageUrl("t/collapsed")+'"/>');return{expandCollapse:function(a,b){a.hasClass("hide")?(a.removeClass("hide"),a.addClass("visible"),a.attr("aria-expanded",!0),b.find(":header i.fa").removeClass("fa-plus-square"),b.find(":header i.fa").addClass("fa-minus-square"),b.find(":header img.icon").attr("src",d.attr("src"))):(a.removeClass("visible"),a.addClass("hide"),a.attr("aria-expanded",!1),b.find(":header i.fa").removeClass("fa-minus-square"),b.find(":header i.fa").addClass("fa-plus-square"),b.find(":header img.icon").attr("src",e.attr("src")))},expandCollapseAll:function(b){var f="visible"==b?"hide":"visible",g="visible"==b,h="visible"==b?"fa-plus-square":"fa-minus-square",i="visible"==b?"fa-minus-square":"fa-plus-square",j="visible"==b?d.attr("src"):e.attr("src");a("."+f).each(function(){a(this).removeClass(f),a(this).addClass(b),a(this).attr("aria-expanded",g)}),a(".tool_dataprivacy-expand-all").data("visibilityState",f),c.get_string(f,"tool_dataprivacy").then(function(b){a(".tool_dataprivacy-expand-all").html(b)})["catch"](Notification.exception),a(":header i.fa").each(function(){a(this).removeClass(h),a(this).addClass(i)}),a(":header img.icon").each(function(){a(this).attr("src",j)})}}});
				`@@ -0,0 +1 @@`
				define(["jquery","core/ajax","core/templates"],function(a,b,c){return{processResults:function(b,c){var d=[];return a.each(c,function(a,b){d.push({value:b.id,label:b._label})}),d},transport:function(d,e,f,g){var h;h=b.call([{methodname:"tool_dataprivacy_get_users",args:{query:e}}]),h[0].then(function(b){var d=[],e=0;return a.each(b,function(a,b){d.push(c.render("tool_dataprivacy/form-user-selector-suggestion",b))}),a.when.apply(a.when,d).then(function(){var c=arguments;a.each(b,function(a,b){b._label=c[e],e++}),f(b)})}).fail(g)}}});
				`@@ -0,0 +1 @@`
				define(["jquery","core/form-autocomplete","core/str","core/notification"],function(a,b,c,d){var e={REQUEST_FILTERS:"#request-filters"},f=function(){var f=[{key:"filter",component:"moodle"},{key:"nofiltersapplied",component:"tool_dataprivacy"}];c.get_strings(f).then(function(a){var c=a[0],d=a[1];return b.enhance(e.REQUEST_FILTERS,!1,"",c,!1,!0,d,!0)}).fail(d.exception);var g=a(e.REQUEST_FILTERS).val();a(e.REQUEST_FILTERS).on("change",function(){var b=a(this).val();g.join(",")!==b.join(",")&&(0===b.length&&a("#filters-cleared").val(1),a(this.form).submit())})};return{init:function(){f()}}});