public function actionIndex()
{
$searchModel = new ContentTypeSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
if (Yii::$app->request->isAjax && $searchModel->load(Yii::$app->request->get())) {
Yii::$app->response->format = 'json';
return ActiveForm::validate($searchModel);
}
return $this->render('index', ['dataProvider' => $dataProvider, 'model' => $searchModel]);
}
