/**
  * Creates or retrieves a LastNotification entity by its event name.
  * 
  * @param string $name Name of the event to retrive the record.
  */
 private function getOrCreateByEventName($name)
 {
     $event = EventManager::getInstance()->getByName($name);
     $session = SessionManager::getCurrentSession();
     $obj = PartKeepr::getEM()->getRepository('PartKeepr\\EventNotification\\LastNotification')->findOneBy(array('event' => $event->getId(), 'session' => $session->getId()));
     if (!$obj) {
         $obj = new LastNotification($event, $session);
         PartKeepr::getEM()->persist($obj);
         PartKeepr::getEM()->flush();
     }
     return $obj;
 }
 /** 
  * This method is a callback for the PostPersist event. We will add it to our database
  * dependent eventNotification.
  * 
  * @PostPersist @PostUpdate
  */
 public function onPostPersist()
 {
     if (!$this->done) {
         EventManager::getInstance()->getOrCreateByName("Printing.pendingJob")->emit();
     }
 }