Proyectos de Subversion Moodle

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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Define all the backup steps that will be used by the backup_book_activity_task
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 *
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 * @package    mod_book
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 * @copyright  2010 Petr Skoda {@link http://skodak.org}
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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defined('MOODLE_INTERNAL') || die;
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/**
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 * Structure step to backup one book activity
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 */
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class backup_book_activity_structure_step extends backup_activity_structure_step {
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    protected function define_structure() {
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        // Define each element separated.
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        $book = new backup_nested_element('book', array('id'), array(
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            'name', 'intro', 'introformat', 'numbering', 'navstyle',
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            'customtitles', 'timecreated', 'timemodified'));
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        $chapters = new backup_nested_element('chapters');
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        $chapter = new backup_nested_element('chapter', array('id'), array(
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            'pagenum', 'subchapter', 'title', 'content', 'contentformat',
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            'hidden', 'timemcreated', 'timemodified', 'importsrc'));
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        $tags = new backup_nested_element('chaptertags');
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        $tag = new backup_nested_element('tag', array('id'), array('itemid', 'rawname'));
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        $book->add_child($chapters);
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        $chapters->add_child($chapter);
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        // Define sources
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        $book->set_source_table('book', array('id' => backup::VAR_ACTIVITYID));
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        $chapter->set_source_table('book_chapters', array('bookid' => backup::VAR_PARENTID));
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        // Define file annotations
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        $book->annotate_files('mod_book', 'intro', null); // This file area hasn't itemid
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        $chapter->annotate_files('mod_book', 'chapter', 'id');
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        $book->add_child($tags);
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        $tags->add_child($tag);
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        // All these source definitions only happen if we are including user info.
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        if (core_tag_tag::is_enabled('mod_book', 'book_chapters')) {
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            $tag->set_source_sql('SELECT t.id, ti.itemid, t.rawname
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                                    FROM {tag} t
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                                    JOIN {tag_instance} ti ON ti.tagid = t.id
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                                   WHERE ti.itemtype = ?
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                                     AND ti.component = ?
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                                     AND ti.contextid = ?', array(
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                backup_helper::is_sqlparam('book_chapters'),
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                backup_helper::is_sqlparam('mod_book'),
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                backup::VAR_CONTEXTID));
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        }
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        // Return the root element (book), wrapped into standard activity structure
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        return $this->prepare_activity_structure($book);
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    }
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}