update

app/Models/CourseSign.php

@@ -348,7 +348,7 @@ class CourseSign extends SoftDeletesModel
                     $q->orWhere('company_name', 'like', '%' . $item . '%');
                 }
             });
-        })->whereIn('id', $courseSignByType->pluck('user_id'))->get();
+        })->whereIn('id1', $courseSignByType->pluck('user_id'))->get();
         if ($retList) {
             // 返回列表
             return $list;