/**
     * Creates a new Comment entity.
     *
     * @Route("/{torrent_id}/create", name="comment_create")
     * @Method("post")
     * @Secure(roles="ROLE_USER")
     */
    public function createAction($torrent_id) {
        $entity = new Comment();
        $form = $this->createForm(new CommentFormType(), $entity);
        $request = $this->getRequest();

        $form->bindRequest($request);
        if ($form->isValid()) {
            $em = $this->getDoctrine()->getEntityManager();
            $user = $this->container->get('security.context')->getToken()->getUser();
            $torrent = $em->getRepository('RootyTorrentBundle:Torrent')->findOneById($torrent_id);

            $entity->setTorrent($torrent);
            $entity->setAddedBy($user);
            $entity->setDateAdded(new \DateTime('now'));

            $em->persist($entity);
            $em->flush();

            return $this->redirect($this->generateUrl('torrent_show', array('id' => $torrent_id)).'#'.$entity->getId());
        }
        return new Response('An error occured with form sumbission');
    }