protected function addRules()
    {
        try {
            (new Rbac())->add($this->authManager);
            return $this->returnSuccess(Yii::t('podium/flash', 'Access roles have been created.'));
        } catch (Exception $e) {
            return $this->returnError($e->getMessage(), __METHOD__,
                Yii::t('podium/flash', 'Error during access roles creating')
            );
        }
    }