function setPermissionControl($id)
 {
     $id = trim($id);
     $pclf = new PermissionControlListFactory();
     if ($id != 0 or $this->Validator->isResultSetWithRows('permission_control', $pclf->getByID($id), TTi18n::gettext('Permission Group is invalid'))) {
         $this->data['permission_control_id'] = $id;
         return TRUE;
     }
     return FALSE;
 }