/**
  * Finds the Attribute model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return Attribute the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = Attribute::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }
 public static function getAttributeId($attrib_name = '')
 {
     $model = Attribute::findOne(['name' => $attrib_name]);
     if ($model) {
         return $model->id;
     } else {
         return 0;
     }
 }
 public function actionAttrdel($id, $type_id)
 {
     $model = Attribute::findOne($id);
     if ($model->delete()) {
         Yii::$app->getSession()->setFlash('info', '操作删除成功!');
         return $this->redirect(['attrlist', 'type_id' => $type_id]);
     }
 }