/** * Performs ajax validation. * @param Model $model * @throws \yii\base\ExitException */ protected function performAjaxValidation(Model $model) { if (\Yii::$app->request->isAjax && $model->load(\Yii::$app->request->post())) { \Yii::$app->response->format = Response::FORMAT_JSON; echo json_encode(ActiveForm::validate($model)); \Yii::$app->end(); } }