public function isNodeOptionAlreadyKnown(NodeOption $nodeOption)
 {
     foreach ($this->data as $data) {
         if ($data['nodeOption'] && $data['nodeOption']->getId() == $nodeOption->getId()) {
             return true;
         }
     }
     return false;
 }
 public function doesPublicIdExist($id, NodeOption $nodeOption)
 {
     if ($nodeOption->getId()) {
         $tvs = $this->getEntityManager()->createQuery(' SELECT nova FROM QuestionKeyBundle:NodeOptionVariableAction nova' . ' WHERE nova.nodeOption = :nodeOption AND nova.publicId = :public_id')->setParameter('nodeOption', $nodeOption)->setParameter('public_id', $id)->getResult();
         return (bool) $tvs;
     } else {
         return false;
     }
 }