后台一键删除消息2

app/enterprise/model/Message.php

@@ -430,6 +430,6 @@ class Message extends BaseModel
         foreach ($file_id_arr as $file_id) {
             File::syncDelFile($file_id);
         }
-        $model->where('is_group',0)->force()->delete();
+        $model->where('is_group',$is_group)->force()->delete();
     }
 }