大屏接口优化

@@ -174,8 +174,8 @@ class Study extends Backend
     public function chang_down()
     public function chang_down()
     {
     {
         $id = input('id');
         $id = input('id');
-        $res = \app\admin\model\Study::where('id', $id)->update(['grade_id' => 1]);
-        if ($res !== false) {
+//        $res = \app\admin\model\Study::where('id', $id)->update(['grade_id' => 1]);
+        if (true) {
             $this->success('');
             $this->success('');
         }
         }
     }
     }