MDL-55158 mod_data: Add calendar events for database activities

mod/data/lib.php

@@ -904,7 +904,8 @@ function data_tags_check($dataid, $template) {
  * @return int intance id
  */
 function data_add_instance($data, $mform = null) {
-    global $DB;
+    global $DB, $CFG;
+    require_once($CFG->dirroot.'/mod/data/locallib.php');
 
     if (empty($data->assessed)) {
         $data->assessed = 0;
@@ -919,6 +920,9 @@ function data_add_instance($data, $mform = null) {
 
     $data->id = $DB->insert_record('data', $data);
 
+    // Add calendar events if necessary.
+    data_set_events($data);
+
     data_grade_item_update($data);
 
     return $data->id;
@@ -932,7 +936,8 @@ function data_add_instance($data, $mform = null) {
  * @return bool
  */
 function data_update_instance($data) {
-    global $DB, $OUTPUT;
+    global $DB, $CFG;
+    require_once($CFG->dirroot.'/mod/data/locallib.php');
 
     $data->timemodified = time();
     $data->id           = $data->instance;
@@ -952,6 +957,9 @@ function data_update_instance($data) {
 
     $DB->update_record('data', $data);
 
+    // Add calendar events if necessary.
+    data_set_events($data);
+
     data_grade_item_update($data);
 
     return true;
@@ -992,6 +1000,13 @@ function data_delete_instance($id) {    // takes the dataid
     $DB->delete_records('data_records', array('dataid'=>$id));
     $DB->delete_records('data_fields', array('dataid'=>$id));
 
+    // Remove old calendar events.
+    $events = $DB->get_records('event', array('modulename' => 'data', 'instance' => $id));
+    foreach ($events as $event) {
+        $event = calendar_event::load($event);
+        $event->delete();
+    }
+
     // Delete the instance itself
     $result = $DB->delete_records('data', array('id'=>$id));
 
@@ -3965,3 +3980,33 @@ function data_process_submission(stdClass $mod, $fields, stdClass $datarecord) {
 
     return $result;
 }
+
+/**
+ * This standard function will check all instances of this module
+ * and make sure there are up-to-date events created for each of them.
+ * If courseid = 0, then every data event in the site is checked, else
+ * only data events belonging to the course specified are checked.
+ * This function is used, in its new format, by restore_refresh_events()
+ *
+ * @param int $courseid
+ * @return bool
+ */
+function data_refresh_events($courseid = 0) {
+    global $DB, $CFG;
+    require_once($CFG->dirroot.'/mod/data/locallib.php');
+
+    if ($courseid) {
+        if (! $data = $DB->get_records("data", array("course" => $courseid))) {
+            return true;
+        }
+    } else {
+        if (! $data = $DB->get_records("data")) {
+            return true;
+        }
+    }
+
+    foreach ($data as $datum) {
+        data_set_events($datum);
+    }
+    return true;
+}