public function deleteAction($id)
    {
        $delete = function($id) {
            $group = $this->getDoctrine()
                ->getRepository(static::$entityName)
                ->findGroupById($id);

            if (!$group) {
                throw new EntityNotFoundException(static::$entityName, $id);
            }

            $em = $this->getDoctrine()->getManager();
            $em->remove($group);
            $em->flush();
        };

        $view = $this->responseDelete($id, $delete);

        return $this->handleView($view);
    }