public function deleteAction(Request $request, $id) {

        $form = $this->createDeleteForm($id);
        $form->handleRequest($request);

        if ($form->isValid()) {

            $em = $this->getDoctrine()->getManager();
            $userGroup = $em->getRepository('AmulenUserBundle:UserGroup')->find($id);

            if (!$userGroup) {
                throw $this->createNotFoundException('Unable to find UserGroup entity.');
            }

            $var = $em->getRepository('AmulenUserBundle:User')->findByGroup($userGroup);
            echo $var;
            die("123");

            $users = $this->getUsersByUserGroup($userGroup);
            
            if (count($users) == 0)
            {
                $em->remove($userGroup);
                $em->flush();
            }
            else
            {
                $this->get('session')->getFlashBag()->add('warning', "El grupo de roles no pude eliminarse debido a que posee usuarios asociados.");
                return $this->redirect($request->getUri());
            }
        }

        return $this->redirect($this->generateUrl('admin_usergroup'));
    }