开发修改运费模板删除方法

backend/modules/shop/controllers/ExpressTemplateController.php

@@ -8,13 +8,14 @@ use backend\modules\shop\models\searchs\ExpressAreaSearch;
 use Yii;
 use backend\modules\shop\models\ars\ExpressTemplate;
 use backend\modules\shop\models\searchs\ExpressTemplateSearch;
-use yii\caching\Cache;
 use yii\web\Controller;
 use yii\web\NotFoundHttpException;
 use yii\filters\VerbFilter;
 use yii\web\Response;
 use yii\widgets\ActiveForm;
 use backend\modules\shop\models\ars\ExpressArea;
+use backend\modules\goods\models\ars\Goods;
+
 
 /**
  * ExpressTemplateController implements the CRUD actions for ExpressTemplate model.
@@ -112,7 +113,13 @@ class ExpressTemplateController extends Controller
      */
     public function actionDelete($id)
     {
-        $this->findModel($id)->delete();
+        if (Goods::find()->where(['express_template' => $id])->count() == 0) {
+            $expressTemplateModel = $this->findModel($id);
+            ExpressArea::deleteAll(['express_template' => $expressTemplateModel->id]);
+            $expressTemplateModel->delete();
+        } else {
+            Yii::$app->session->setFlash('error', '该模板已被使用');
+        }
 
         return $this->redirect(['index']);
     }