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// This file is part of Moodle -
// 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
// 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 <>.
* Define all the backup steps that will be used by the backup_book_activity_task
* @package mod
* @subpackage book
* @copyright 2010 Petr Skoda {@link}
* @license GNU GPL v3 or later
defined('MOODLE_INTERNAL') || die;
* Define the complete book structure for backup, with file and id annotations
class backup_book_activity_structure_step extends backup_activity_structure_step {
protected function define_structure() {
// Define each element separated
$book = new backup_nested_element('book', array('id'), array('name', 'intro', 'introformat', 'numbering', 'customtitles', 'timecreated', 'timemodified'));
$chapters = new backup_nested_element('chapters');
$chapter = new backup_nested_element('chapter', array('id'), array('pagenum', 'subchapter', 'title', 'content', 'contentformat', 'hidden', 'timemcreated', 'timemodified', 'importsrc',));
// Define sources
$book->set_source_table('book', array('id' => backup::VAR_ACTIVITYID));
$chapter->set_source_table('book_chapters', array('bookid' => backup::VAR_PARENTID));
// Define file annotations
$book->annotate_files('mod_book', 'intro', null); // This file area hasn't itemid
$chapter->annotate_files('mod_book', 'chapter', 'id');
// Return the root element (book), wrapped into standard activity structure
return $this->prepare_activity_structure($book);
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