public function showAction($id)
    {
        $em = $this->getDoctrine()->getEntityManager();

        $group = $em->getRepository('Orkestra\Bundle\ApplicationBundle\Entity\Group')->find($id);

        if (!$group) {
            throw $this->createNotFoundException('Unable to locate Group');
        }

        return array(
            'group' => $group,
        );
    }