From 7db1f6b99f312c461baabc4560236b25a49cbdaa Mon Sep 17 00:00:00 2001
From: Eloy Lafuente <stronk7@moodle.org>
Date: Tue, 4 May 2010 21:58:11 +0000
Subject: [PATCH] MDL-22151 backup - added page module backup

---
 .../backup_page_activity_task.class.php       | 67 +++++++++++++++++++
 .../backup/moodle2/backup_page_stepslib.php   | 60 +++++++++++++++++
 mod/page/lib.php                              |  1 +
 3 files changed, 128 insertions(+)
 create mode 100644 mod/page/backup/moodle2/backup_page_activity_task.class.php
 create mode 100644 mod/page/backup/moodle2/backup_page_stepslib.php

diff --git a/mod/page/backup/moodle2/backup_page_activity_task.class.php b/mod/page/backup/moodle2/backup_page_activity_task.class.php
new file mode 100644
index 00000000000..29de836b938
--- /dev/null
+++ b/mod/page/backup/moodle2/backup_page_activity_task.class.php
@@ -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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once($CFG->dirroot . '/mod/page/backup/moodle2/backup_page_stepslib.php'); // Because it exists (must)
+
+/**
+ * page backup task that provides all the settings and steps to perform one
+ * complete backup of the activity
+ */
+class backup_page_activity_task extends backup_activity_task {
+
+    /**
+     * Define (add) particular settings this activity can have
+     */
+    protected function define_my_settings() {
+        // No particular settings for this activity
+    }
+
+    /**
+     * Define (add) particular steps this activity can have
+     */
+    protected function define_my_steps() {
+        // Choice only has one structure step
+        $this->add_step(new backup_page_activity_structure_step('page_structure', 'page.xml'));
+    }
+
+    /**
+     * Code the transformations to perform in the activity in
+     * order to get transportable (encoded) links
+     */
+    static public function encode_content_links($content) {
+        global $CFG;
+
+        $base = preg_quote($CFG->wwwroot,"/");
+
+        // Link to the list of pages
+        $search="/(".$base."\/mod\/page\/index.php\?id\=)([0-9]+)/";
+        $content= preg_replace($search, '$@PAGEINDEX*$2@$', $content);
+
+        // Link to page view by moduleid
+        $search="/(".$base."\/mod\/page\/view.php\?id\=)([0-9]+)/";
+        $content= preg_replace($search, '$@PAGEVIEWBYID*$2@$', $content);
+
+        return $content;
+    }
+}
diff --git a/mod/page/backup/moodle2/backup_page_stepslib.php b/mod/page/backup/moodle2/backup_page_stepslib.php
new file mode 100644
index 00000000000..fa17c958d91
--- /dev/null
+++ b/mod/page/backup/moodle2/backup_page_stepslib.php
@@ -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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Define all the backup steps that will be used by the backup_page_activity_task
+ */
+
+/**
+ * Define the complete page structure for backup, with file and id annotations
+ */
+class backup_page_activity_structure_step extends backup_activity_structure_step {
+
+    protected function define_structure() {
+
+        // To know if we are including userinfo
+        $userinfo = $this->get_setting_value('userinfo');
+
+        // Define each element separated
+        $page = new backup_nested_element('page', array('id'), array(
+            'name', 'intro', 'introformat', 'content', 'contentformat',
+            'legacyfiles', 'legacyfileslast', 'display', 'displayoptions',
+            'revision', 'timemodified'));
+
+        // Build the tree
+        // (love this)
+
+        // Define sources
+        $page->set_source_table('page', array('id' => backup::VAR_ACTIVITYID));
+
+        // Define id annotations
+        // (none)
+
+        // Define file annotations
+        $page->annotate_files(array('page_intro', 'page_content'), null); // This file areas haven't itemid
+
+        // Return the root element (page), wrapped into standard activity structure
+        return $this->prepare_activity_structure($page);
+    }
+}
diff --git a/mod/page/lib.php b/mod/page/lib.php
index 7f947734e47..5a571b84410 100644
--- a/mod/page/lib.php
+++ b/mod/page/lib.php
@@ -36,6 +36,7 @@ function page_supports($feature) {
         case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
         case FEATURE_GRADE_HAS_GRADE:         return false;
         case FEATURE_GRADE_OUTCOMES:          return false;
+        case FEATURE_BACKUP_MOODLE2:          return true;
 
         default: return null;
     }