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77 lines
2.6 KiB
77 lines
2.6 KiB
2 years ago
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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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* Show/hide book chapter
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*
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* @package mod_book
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* @copyright 2004-2010 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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require(__DIR__.'/../../config.php');
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require_once(__DIR__.'/locallib.php');
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$id = required_param('id', PARAM_INT); // Course Module ID
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$chapterid = required_param('chapterid', PARAM_INT); // Chapter ID
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$cm = get_coursemodule_from_id('book', $id, 0, false, MUST_EXIST);
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$course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
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$book = $DB->get_record('book', array('id'=>$cm->instance), '*', MUST_EXIST);
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require_login($course, false, $cm);
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require_sesskey();
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$context = context_module::instance($cm->id);
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require_capability('mod/book:edit', $context);
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$PAGE->set_url('/mod/book/show.php', array('id'=>$id, 'chapterid'=>$chapterid));
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$chapter = $DB->get_record('book_chapters', array('id'=>$chapterid, 'bookid'=>$book->id), '*', MUST_EXIST);
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// Switch hidden state.
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$chapter->hidden = $chapter->hidden ? 0 : 1;
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// Update record.
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$DB->update_record('book_chapters', $chapter);
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\mod_book\event\chapter_updated::create_from_chapter($book, $context, $chapter)->trigger();
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// Change visibility of subchapters too.
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if (!$chapter->subchapter) {
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$chapters = $DB->get_recordset('book_chapters', array('bookid'=>$book->id), 'pagenum ASC');
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$found = 0;
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foreach ($chapters as $ch) {
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if ($ch->id == $chapter->id) {
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$found = 1;
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} else if ($found and $ch->subchapter) {
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$ch->hidden = $chapter->hidden;
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$DB->update_record('book_chapters', $ch);
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\mod_book\event\chapter_updated::create_from_chapter($book, $context, $ch)->trigger();
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} else if ($found) {
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break;
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}
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}
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$chapters->close();
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}
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book_preload_chapters($book); // fix structure
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$DB->set_field('book', 'revision', $book->revision+1, array('id'=>$book->id));
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redirect('view.php?id='.$cm->id.'&chapterid='.$chapter->id);
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