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");
  22     }
  23     if ($site->id == $course->id) {
  24         // can not delete frontpage!
  25         print_error("invalidcourseid");
  26     }
  27
  28     $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
  29
  30     if (!can_delete_course($id)) {
  31         print_error('cannotdeletecourse');
  32     }
  33
  34     $category = $DB->get_record("course_categories", array("id"=>$course->category));
  35     $courseshortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
  36     $categoryname = format_string($category->name, true, array('context' => get_context_instance(CONTEXT_COURSECAT, $category->id)));
  37
  38     $PAGE->navbar->add($stradministration, new moodle_url('/admin/index.php/'));
  39     $PAGE->navbar->add($strcategories, new moodle_url('/course/index.php'));
  40     $PAGE->navbar->add($categoryname, new moodle_url('/course/category.php', array('id'=>$course->category)));
  41     if (! $delete) {
  42         $strdeletecheck = get_string("deletecheck", "", $courseshortname);
  43         $strdeletecoursecheck = get_string("deletecoursecheck");
  44
  45         $PAGE->navbar->add($strdeletecheck);
  46         $PAGE->set_title("$site->shortname: $strdeletecheck");
  47         $PAGE->set_heading($site->fullname);
  48         echo $OUTPUT->header();
  49
  50         $message = "$strdeletecoursecheck<br /><br />" . format_string($course->fullname, true, array('context' => $coursecontext)) .  " (" . $courseshortname . ")";
  51
  52         echo $OUTPUT->confirm($message, "delete.php?id=$course->id&delete=".md5($course->timemodified), "category.php?id=$course->category");
  53
  54         echo $OUTPUT->footer();
  55         exit;
  56     }
  57
  58     if ($delete != md5($course->timemodified)) {
  59         print_error("invalidmd5");
  60     }
  61
  62     if (!confirm_sesskey()) {
  63         print_error('confirmsesskeybad', 'error');
  64     }
  65
  66     // OK checks done, delete the course now.
  67
  68     add_to_log(SITEID, "course", "delete", "view.php?id=$course->id", "$course->fullname (ID $course->id)");
  69
  70     $strdeletingcourse = get_string("deletingcourse", "", $courseshortname);
  71
  72     $PAGE->navbar->add($strdeletingcourse);
  73     $PAGE->set_title("$site->shortname: $strdeletingcourse");
  74     $PAGE->set_heading($site->fullname);
  75     echo $OUTPUT->header();
  76     echo $OUTPUT->heading($strdeletingcourse);
  77
  78     delete_course($course);
  79     fix_course_sortorder(); //update course count in catagories
  80
  81     echo $OUTPUT->heading( get_string("deletedcourse", "", $courseshortname) );
  82
  83     echo $OUTPUT->continue_button("category.php?id=$course->category");
  84
  85     echo $OUTPUT->footer();
  86
  87