/**
  * Creates a new ContentMenu model.
  * If creation is successful, the browser will be redirected to the 'view' page.
  * @return mixed
  */
 public function actionCreate()
 {
     $model = new ContentMenu();
     $model->status = 'on';
     $remove_model = ContentMenu::find()->where(['status' => 'on'])->all();
     if ($model->load(Yii::$app->request->post()) && $model->save()) {
         if ($remove_model) {
             foreach ($remove_model as $rem_model) {
                 $rem_model->status = 'off';
                 $rem_model->save();
             }
         }
         return $this->redirect('/content-menu');
     } else {
         return $this->render('create', ['model' => $model]);
     }
 }