Show Action in GaraController

GaraController.php

    public function showAction($gid)
    {
        $em = $this->getDoctrine()->getEntityManager();
        $gara = $em->getRepository('StanoSasDocumentBundle:Gara')
                   ->find($gid);

        if (!$gara){
            throw $this->createNotFoundException('Unable to find Gara.');
        }

        return $this->render('StanoSasDocumentBundle:Gara:show.html.twig', array(
            'gara' => $gara,
            'attachments' => $attachments
        ));
    }