/**
  * @param PersistEvent $event
  */
 public function handleChangeParent(PersistEvent $event)
 {
     $document = $event->getDocument();
     $node = $this->inspector->getNode($document);
     $parentNode = $event->getParentNode();
     if ($parentNode->getPath() === $node->getParent()->getPath()) {
         return;
     }
     $this->documentManager->move($document, $parentNode->getPath());
 }