course/delete.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Admin-only code to delete a course utterly.
  19  *
  20  * @package core_course
  21  * @copyright 2002 onwards Martin Dougiamas (http://dougiamas.com)
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once(__DIR__ . '/../config.php');
  26 require_once($CFG->dirroot . '/course/lib.php');
  27 require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
  28
  29 $id = required_param('id', PARAM_INT); // Course ID.
  30 $delete = optional_param('delete', '', PARAM_ALPHANUM); // Confirmation hash.
  31
  32 $course = $DB->get_record('course', array('id' => $id), '*', MUST_EXIST);
  33 $coursecontext = context_course::instance($course->id);
  34
  35 require_login();
  36
  37 if ($SITE->id == $course->id || !can_delete_course($id)) {
  38     // Can not delete frontpage or don't have permission to delete the course.
  39     throw new \moodle_exception('cannotdeletecourse');
  40 }
  41
  42 $categorycontext = context_coursecat::instance($course->category);
  43 $PAGE->set_url('/course/delete.php', array('id' => $id));
  44 $PAGE->set_context($categorycontext);
  45 $PAGE->set_pagelayout('admin');
  46 navigation_node::override_active_url(new moodle_url('/course/management.php', array('categoryid'=>$course->category)));
  47
  48 $courseshortname = format_string($course->shortname, true, array('context' => $coursecontext));
  49 $coursefullname = format_string($course->fullname, true, array('context' => $coursecontext));
  50 $categoryurl = new moodle_url('/course/management.php', array('categoryid' => $course->category));
  51
  52 // Check if we've got confirmation.
  53 if ($delete === md5($course->timemodified)) {
  54     // We do - time to delete the course.
  55     require_sesskey();
  56
  57     $strdeletingcourse = get_string("deletingcourse", "", $courseshortname);
  58
  59     $PAGE->navbar->add($strdeletingcourse);
  60     $PAGE->set_title("$SITE->shortname: $strdeletingcourse");
  61     $PAGE->set_heading($SITE->fullname);
  62
  63     echo $OUTPUT->header();
  64     echo $OUTPUT->heading($strdeletingcourse);
  65     // This might take a while. Raise the execution time limit.
  66     core_php_time_limit::raise();
  67     // We do this here because it spits out feedback as it goes.
  68     delete_course($course);
  69     echo $OUTPUT->heading( get_string("deletedcourse", "", $courseshortname) );
  70     // Update course count in categories.
  71     fix_course_sortorder();
  72     echo $OUTPUT->continue_button($categoryurl);
  73     echo $OUTPUT->footer();
  74     exit; // We must exit here!!!
  75 }
  76
  77 $strdeletecheck = get_string("deletecheck", "", $courseshortname);
  78
  79 $PAGE->navbar->add($strdeletecheck);
  80 $PAGE->set_title("$SITE->shortname: $strdeletecheck");
  81 $PAGE->set_heading($SITE->fullname);
  82 echo $OUTPUT->header();
  83
  84 // Only let user delete this course if there is not an async backup in progress.
  85 if (!async_helper::is_async_pending($id, 'course', 'backup')) {
  86     $strdeletecoursecheck = get_string("deletecoursecheck");
  87     $message = "{$strdeletecoursecheck}<br /><br />{$coursefullname} ({$courseshortname})";
  88
  89     $continueurl = new moodle_url('/course/delete.php', array('id' => $course->id, 'delete' => md5($course->timemodified)));
  90     $continuebutton = new single_button($continueurl, get_string('delete'), 'post');
  91     echo $OUTPUT->confirm($message, $continuebutton, $categoryurl);
  92 } else {
  93     // Async backup is pending, don't let user delete course.
  94     echo $OUTPUT->notification(get_string('pendingasyncerror', 'backup'), 'error');
  95     echo $OUTPUT->container(get_string('pendingasyncdeletedetail', 'backup'));
  96     echo $OUTPUT->continue_button($categoryurl);
  97 }
  98
  99 echo $OUTPUT->footer();
 100 exit;