/**
* the singleton pattern
*
* @return Courses_Controller
*/
public static function getInstance()
{
if (self::$_instance === NULL) {
self::$_instance = new Courses_Controller();
}
return self::$_instance;
}
/**
* Deletes a set of records.
*
* If one of the records could not be deleted, no record is deleted
*
* @param array array of record identifiers
* @return void
* @throws Tinebase_Exception_NotFound|Tinebase_Exception
*/
public function delete($_ids)
{
$courses = $this->getMultiple($_ids);
$groupsToDelete = array();
$usersToDelete = array();
foreach ($courses as $course) {
$groupsToDelete[] = $course->group_id;
$usersToDelete = array_merge($usersToDelete, $this->_groupController->getGroupMembers($course->group_id));
}
Courses_Controller::getInstance()->suspendEvents();
$this->_userController->delete(array_unique($usersToDelete));
$this->_groupController->delete(array_unique($groupsToDelete));
Courses_Controller::getInstance()->resumeEvents();
parent::delete($_ids);
}