public function actionCreateparent()
 {
     $model = new Kategoricus();
     if ($model->load(Yii::$app->request->post())) {
         $data = Kategoricus::find()->count();
         if ($data == 0) {
             $model->CUST_KTG_PARENT = 1;
         } else {
             $datax = Kategoricus::find()->MAX('CUST_KTG');
             $model->CUST_KTG_PARENT = $datax + 1;
         }
         if ($model->validate()) {
             $model->CREATED_BY = Yii::$app->user->identity->username;
             $model->CREATED_AT = date("Y-m-d H:i:s");
             if ($model->save()) {
                 echo 1;
             } else {
                 echo 0;
             }
         }
     } else {
         return $this->renderAjax('_form', ['model' => $model]);
     }
 }