/**
  * @Route("/new/{id}")
  * @Template()
  */
 public function newAction(\Club\ExchangeBundle\Entity\Exchange $exchange)
 {
     if ($exchange->getClosed()) {
         $this->get('session')->getFlashBag()->add('error', $this->get('translator')->trans('You cannot comment a closed exchange.'));
         return $this->redirect($this->generateUrl('club_exchange_comment_index', array('id' => $exchange->getId())));
     }
     $comment = new \Club\ExchangeBundle\Entity\ExchangeComment();
     $comment->setUser($this->getUser());
     $comment->setExchange($exchange);
     $form = $this->createForm(new \Club\ExchangeBundle\Form\ExchangeComment(), $comment);
     if ($this->getRequest()->getMethod() == 'POST') {
         $form->bind($this->getRequest());
         if ($form->isValid()) {
             $em = $this->getDoctrine()->getManager();
             $em->persist($comment);
             $em->flush();
             $event = new \Club\ExchangeBundle\Event\FilterExchangeCommentEvent($comment, $this->getUser());
             $this->get('event_dispatcher')->dispatch(\Club\ExchangeBundle\Event\Events::onExchangeCommentNew, $event);
             $this->get('session')->getFlashBag()->add('notice', $this->get('translator')->trans('Your changes are saved.'));
             return $this->redirect($this->generateUrl('club_exchange_comment_index', array('id' => $exchange->getId())));
         }
     }
     return array('exchange' => $exchange, 'form' => $form->createView());
 }
 /**
  * Remove exchange_comments
  *
  * @param Club\ExchangeBundle\Entity\ExchangeComment $exchangeComments
  */
 public function removeExchangeComment(\Club\ExchangeBundle\Entity\ExchangeComment $exchangeComments)
 {
     $this->exchange_comments->removeElement($exchangeComments);
 }