分类销量

@@ -84,6 +84,8 @@ class ClassifyController extends WeChatBaseController{
         }
         if(!empty($_POST['lable_id'])){
             $where['label_id'] = $_POST['lable_id'];
+        }else{
+            $where['label_id'] = 0;
         }
         $data = Db::name('goods') -> alias('a') -> join('classification b','a.classify_id = b.id','LEFT') -> where($where) -> order('a.sales desc') -> select() -> toArray();
         foreach($data as $key => $val){