public function deleteAction()
 {
     $fc = FrontController::getInstance();
     $data = new DatabaseModel();
     $params = $fc->getParams();
     if (preg_match("/^[a-zA-Z0-9_]+(_[\\d]+s|)\$/", $params['serial'])) {
         $data->deleteSerial($params['serial']);
         $data->getStatus();
     }
 }