protected function securityCheck(Request $request)
    {
        if (!$this->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_REMEMBERED')) {
            $request->getSession()->set('_ekyna.login_success.target_path', 'ekyna_cart_informations');
            return $this->redirect($this->generateUrl('fos_user_security_login'));
        }
        return null;
    }