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<?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/>.
/**
* Duplicates a given course module
*
* The script backups and restores a single activity as if it was imported
* from the same course, using the default import settings. The newly created
* copy of the activity is then moved right below the original one.
*
* @package core
* @subpackage course
* @copyright 2011 David Mudrak <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(dirname(__FILE__)) . '/config.php');
require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
require_once($CFG->libdir . '/filelib.php');
$cmid = required_param('cmid', PARAM_INT);
$courseid = required_param('course', PARAM_INT);
$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
$cm = get_coursemodule_from_id('', $cmid, $course->id, true, MUST_EXIST);
$cmcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
$context = get_context_instance(CONTEXT_COURSE, $courseid);
$section = $DB->get_record('course_sections', array('id' => $cm->section, 'course' => $cm->course));
require_login($course);
require_sesskey();
require_capability('moodle/course:manageactivities', $context);
// Require both target import caps to be able to duplicate, see make_editing_buttons()
require_capability('moodle/backup:backuptargetimport', $context);
require_capability('moodle/restore:restoretargetimport', $context);
$PAGE->set_title(get_string('duplicate'));
$PAGE->set_heading($course->fullname);
$PAGE->set_url(new moodle_url('/course/modduplicate.php', array('cmid' => $cm->id, 'courseid' => $course->id)));
$PAGE->set_pagelayout('incourse');
$output = $PAGE->get_renderer('core', 'backup');
// backup the activity
$bc = new backup_controller(backup::TYPE_1ACTIVITY, $cm->id, backup::FORMAT_MOODLE,
backup::INTERACTIVE_NO, backup::MODE_IMPORT, $USER->id);
$backupid = $bc->get_backupid();
$backupbasepath = $bc->get_plan()->get_basepath();
$bc->execute_plan();
$bc->destroy();
// restore the backup immediately
$rc = new restore_controller($backupid, $courseid,
backup::INTERACTIVE_NO, backup::MODE_IMPORT, $USER->id, backup::TARGET_CURRENT_ADDING);
if (!$rc->execute_precheck()) {
$precheckresults = $rc->get_precheck_results();
if (is_array($precheckresults) && !empty($precheckresults['errors'])) {
if (empty($CFG->keeptempdirectoriesonbackup)) {
fulldelete($backupbasepath);
}
echo $output->header();
echo $output->precheck_notices($precheckresults);
echo $output->continue_button(new moodle_url('/course/view.php', array('id' => $course->id)));
echo $output->footer();
die();
}
}
$rc->execute_plan();
// now a bit hacky part follows - we try to get the cmid of the newly
// restored copy of the module
$newcmid = null;
$tasks = $rc->get_plan()->get_tasks();
foreach ($tasks as $task) {
if (is_subclass_of($task, 'restore_activity_task')) {
if ($task->get_old_contextid() == $cmcontext->id) {
$newcmid = $task->get_moduleid();
break;
}
}
}
// if we know the cmid of the new course module, let us move it
// right below the original one. otherwise it will stay at the
// end of the section
if ($newcmid) {
$newcm = get_coursemodule_from_id('', $newcmid, $course->id, true, MUST_EXIST);
moveto_module($newcm, $section, $cm);
moveto_module($cm, $section, $newcm);
}
$rc->destroy();
if (empty($CFG->keeptempdirectoriesonbackup)) {
fulldelete($backupbasepath);
}
$a = new stdClass();
$a->modtype = get_string('modulename', $cm->modname);
$a->modname = format_string($cm->name);
echo $output->header();
if ($newcmid) {
echo $output->confirm(
get_string('duplicatesuccess', 'core', $a),
new single_button(
new moodle_url('/course/modedit.php', array('update' => $newcmid)),
get_string('duplicatecontedit'),
'get'),
new single_button(
new moodle_url('/course/view.php#section-' . $cm->sectionnum, array('id' => $cm->course)),
get_string('duplicatecontcourse'),
'get')
);
} else {
echo $output->notification(get_string('duplicatesuccess', 'core', $a), 'notifysuccess');
echo $output->continue_button(
new moodle_url('/course/view.php#section-' . $cm->sectionnum, array('id' => $course->id))
);
}
echo $output->footer();
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