function deleteAssignment()
 {
     global $ilDB, $ilCtrl, $lng;
     $delete = false;
     if (is_array($_POST["id"])) {
         include_once "./Customizing/global/plugins/Services/Repository/RepositoryObject/Ephorus/classes/class.ilEphAssignment.php";
         foreach ($_POST["id"] as $id) {
             $ass = new ilEphAssignment(ilUtil::stripSlashes($id));
             $ass->delete($this->object);
             $delete = true;
         }
     }
     if ($delete) {
         ilUtil::sendSuccess($lng->txt("rep_robj_xeph_assignments_deleted"), true);
     }
     $ilCtrl->redirect($this, "listAssignments");
 }