docs/mods/_core/properties/lib/delete_course.inc.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2010                                              */
   6 /* Inclusive Design Institute                                           */
   7 /* http://atutor.ca                                                     */
   8 /* This program is free software. You can redistribute it and/or        */
   9 /* modify it under the terms of the GNU General Public License          */
  10 /* as published by the Free Software Foundation.                        */
  11 /************************************************************************/
  12 // $Id$
  13
  14
  15 function delete_course($course, $material) {
  16         global $db, $moduleFactory;
  17
  18         $delete_groups = FALSE; // whether or not to delete the groups as well
  19
  20         $groups = array();
  21
  22         //unset s_cid var
  23         if ($material === TRUE) {
  24                 unset($_SESSION['s_cid']);
  25                 $delete_groups = TRUE;
  26                 // get a list of groups in an array to send to module::delete()
  27                 // get groups
  28                 $sql    = "SELECT G.group_id FROM ".TABLE_PREFIX."groups G INNER JOIN ".TABLE_PREFIX."groups_types T USING (type_id) WHERE T.course_id=$course";
  29                 $result = mysql_query($sql, $db);
  30                 while ($group_row = mysql_fetch_assoc($result)) {
  31                         $groups[] = $group_row['group_id'];
  32                 }
  33         }
  34
  35         $module_list = $moduleFactory->getModules(AT_MODULE_STATUS_ENABLED | AT_MODULE_STATUS_DISABLED);
  36         $keys = array_keys($module_list);
  37
  38         //loop through mods and call delete function
  39         foreach ($keys as $module_name) {
  40                 if ($module_name == '_core/groups') {
  41                         continue;
  42                 }
  43                 if ($module_name == '_core/enrolment') {
  44                         continue;
  45                 }
  46                 $module =& $module_list[$module_name];
  47
  48                 if (($material === TRUE) || isset($material[$module_name])) {
  49                         $module->delete($course, $groups);
  50                 }
  51         }
  52
  53         // groups and enrollment must be deleted last because that info is used by other modules
  54
  55         if (($material === TRUE) || isset($material['_core/groups'])) {
  56                 $module =& $moduleFactory->getModule('_core/groups');
  57                 $module->delete($course, $groups);
  58         }
  59         if (($material === TRUE) || isset($material['_core/enrolment'])) {
  60                 $module =& $moduleFactory->getModule('_core/enrolment');
  61                 $module->delete($course, $groups);
  62         }
  63
  64         if ($material === TRUE) {
  65                 // delete actual course
  66                 $sql = "DELETE FROM ".TABLE_PREFIX."courses WHERE course_id=$course";
  67                 $result = mysql_query($sql, $db);
  68         }
  69 }
  70 ?>