course/delete.php

   1 <?php
   2       // Admin-only code to delete a course utterly
   3
   4     require_once(dirname(__FILE__) . '/../config.php');
   5     require_once($CFG->dirroot . '/course/lib.php');
   6
   7     $id     = required_param('id', PARAM_INT);              // course id
   8     $delete = optional_param('delete', '', PARAM_ALPHANUM); // delete confirmation hash
   9
  10     $PAGE->set_url('/course/delete.php', array('id' => $id));
  11     $PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
  12     require_login();
  13
  14     $site = get_site();
  15
  16     $strdeletecourse = get_string("deletecourse");
  17     $stradministration = get_string("administration");
  18     $strcategories = get_string("categories");
  19
  20     if (! $course = $DB->get_record("course", array("id"=>$id))) {
  21         print_error("invalidcourseid", 'error', '', $id);
  22     }
  23     if ($site->id == $course->id) {
  24         // can not delete frontpage!
  25         print_error("invalidcourseid", 'error', '', $id);
  26     }
  27
  28     if (!can_delete_course($id)) {
  29         print_error('cannotdeletecourse');
  30     }
  31
  32     $category = $DB->get_record("course_categories", array("id"=>$course->category));
  33
  34     $PAGE->navbar->add($stradministration, new moodle_url('/admin/index.php/'));
  35     $PAGE->navbar->add($strcategories, new moodle_url('/course/index.php'));
  36     $PAGE->navbar->add($category->name, new moodle_url('/course/category.php', array('id'=>$course->category)));
  37     if (! $delete) {
  38         $strdeletecheck = get_string("deletecheck", "", $course->shortname);
  39         $strdeletecoursecheck = get_string("deletecoursecheck");
  40
  41         $PAGE->navbar->add($strdeletecheck);
  42         $PAGE->set_title("$site->shortname: $strdeletecheck");
  43         $PAGE->set_heading($site->fullname);
  44         echo $OUTPUT->header();
  45
  46         $message = "$strdeletecoursecheck<br /><br />" . format_string($course->fullname) .  " (" . format_string($course->shortname) . ")";
  47         echo $OUTPUT->confirm($message, "delete.php?id=$course->id&delete=".md5($course->timemodified), "category.php?id=$course->category");
  48
  49         echo $OUTPUT->footer();
  50         exit;
  51     }
  52
  53     if ($delete != md5($course->timemodified)) {
  54         print_error("invalidmd5");
  55     }
  56
  57     if (!confirm_sesskey()) {
  58         print_error('confirmsesskeybad', 'error');
  59     }
  60
  61     // OK checks done, delete the course now.
  62
  63     add_to_log(SITEID, "course", "delete", "view.php?id=$course->id", "$course->fullname (ID $course->id)");
  64
  65     $strdeletingcourse = get_string("deletingcourse", "", format_string($course->shortname));
  66
  67     $PAGE->navbar->add($strdeletingcourse);
  68     $PAGE->set_title("$site->shortname: $strdeletingcourse");
  69     $PAGE->set_heading($site->fullname);
  70     echo $OUTPUT->header();
  71     echo $OUTPUT->heading($strdeletingcourse);
  72
  73     delete_course($course);
  74     fix_course_sortorder(); //update course count in catagories
  75
  76     echo $OUTPUT->heading( get_string("deletedcourse", "", format_string($course->shortname)) );
  77
  78     echo $OUTPUT->continue_button("category.php?id=$course->category");
  79
  80     echo $OUTPUT->footer();
  81
  82