public function actionCreate()
 {
     $model = new News();
     $model->load(Yii::$app->request->post());
     $model->author_id = Yii::$app->user->identity->id;
     //!!! сделать поле status unsafe
     if (!Yii::$app->user->can('setStatusActiveNews')) {
         $model->status = 0;
     }
     if ($model->save()) {
         return $this->redirect(['view', 'slug' => $model->slug]);
     } else {
         return $this->render('create', ['model' => $model, 'category' => ArrayHelper::map(Category::find()->all(), 'id', 'title')]);
     }
 }