新模型字段显示在数据库查询中，但不显示在django admin中 [英] New model field showing in database query but not in django admin

问题描述

我刚刚将 time_inserted = models.DateTimeField(auto_now_add = True)添加到了Shift模型中，当我查询数据库中的对象时，它显示了'time_inserted':datetime.datetime(2018，9、5、15、26、20、226797)太好了！但是我不认为它是admin中的字段，如何使它显示在其中?

I just added time_inserted = models.DateTimeField(auto_now_add=True) to my Shift model and when I query an object in the database it shows 'time_inserted': datetime.datetime(2018, 9, 5, 15, 26, 20, 226797) great! But I don't see it as a field in admin, how can I get it to appear there?

推荐答案

是的，当您设置 auto_now_add 时，会隐式设置 readonly 属性，这意味着不会默认情况下显示在Django的模型管理员中.

Yes, when you set auto_now_add you implicitly set the readonly property, which means it won't by default show up in Django's model admin.

但是，如果您只想查看其值；无需更改即可，您可以使用自定义ModelAdmin类:

However, if you would just like to see the value of it; without changing it, you can do it with a custom ModelAdmin class:

class RatingAdmin(admin.ModelAdmin):
    readonly_fields = ('time_inserted',)

admin.site.register(Rating,RatingAdmin)

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