public function actionCreate($parentId)
 {
     $partner = Partner::findOne($parentId);
     $model = new Service();
     $model->parentId = $parentId;
     $model->categoryId = $partner->parentId;
     if ($model->load($_POST) && $model->save()) {
         return $this->redirect(['/discount/admin/partner/update', 'id' => $parentId, 'section' => 'two']);
     } else {
         return $this->render('create', ['model' => $model]);
     }
 }