后台会员权益列表删除bug

application/admin/controller/wdsxh/member/Rights.php

@@ -30,8 +30,10 @@ class Rights extends Backend
 
         $this->level_model = new \app\admin\model\wdsxh\member\Level;
         $level_id = $this->request->get('level_id');
+        if (!empty($level_id)) {
             $level = $this->level_model->get($level_id);
             $this->view->assign('join_config_id', $level['join_config_id']);
+        }
         $this->searchFields = ['title'];
     }