Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
模型中一个selection类型字段原本的选项有 已登录/未登录/异常。现在我要删除异常这个选项,添加其他选项,也就是新的选项应该是 已登录/未登录/其他,但是我的历史数据中选了异常的记录要正常显示。请问应该怎么做?