tet

app/Http/Controllers/Admin/StudentController.php

@@ -54,8 +54,10 @@ class StudentController extends Controller
             } else {
                 $list = $list->sortByDesc($request->has('sort_field'));
             }
+            dd($request->input('sort_field_by', $request->has('sort_field_by'));
         }
 
+
         $list = $this->paginate($list);
 
         list($pre_uri, $model_name) = array($this->pre_uri, $this->model_name);