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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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* This file contains all necessary code to view an old version of a page
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*
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* @package mod_wiki
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* @copyright 2009 Marc Alier, Jordi Piguillem marc.alier@upc.edu
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* @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu
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*
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* @author Jordi Piguillem
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* @author Marc Alier
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* @author David Jimenez
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* @author Josep Arus
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* @author Kenneth Riba
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*
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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_once('../../config.php');
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require_once($CFG->dirroot . '/mod/wiki/lib.php');
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require_once($CFG->dirroot . '/mod/wiki/locallib.php');
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require_once($CFG->dirroot . '/mod/wiki/pagelib.php');
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$pageid = required_param('pageid', PARAM_TEXT);
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$versionid = required_param('versionid', PARAM_INT);
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if (!$page = wiki_get_page($pageid)) {
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throw new \moodle_exception('incorrectpageid', 'wiki');
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}
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if (!$subwiki = wiki_get_subwiki($page->subwikiid)) {
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throw new \moodle_exception('incorrectsubwikiid', 'wiki');
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}
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if (!$wiki = wiki_get_wiki($subwiki->wikiid)) {
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throw new \moodle_exception('incorrectwikiid', 'wiki');
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}
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if (!$cm = get_coursemodule_from_instance('wiki', $wiki->id)) {
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throw new \moodle_exception('invalidcoursemodule');
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}
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$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
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require_course_login($course, true, $cm);
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if (!wiki_user_can_view($subwiki, $wiki)) {
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throw new \moodle_exception('cannotviewpage', 'wiki');
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}
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$wikipage = new page_wiki_viewversion($wiki, $subwiki, $cm, 'modulepage');
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$wikipage->set_page($page);
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$wikipage->set_versionid($versionid);
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$event = \mod_wiki\event\page_version_viewed::create(
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array(
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'context' => context_module::instance($cm->id),
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'objectid' => $pageid,
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'other' => array(
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'versionid' => $versionid
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)
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));
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$event->add_record_snapshot('wiki_pages', $page);
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$event->add_record_snapshot('wiki', $wiki);
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$event->add_record_snapshot('wiki_subwikis', $subwiki);
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$event->trigger();
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// Print the page header
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$wikipage->print_header();
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$wikipage->print_content();
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$wikipage->print_footer();
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