允许用户的外键为空.姜戈 [英] Allow null in foreign key to user. Django

问题描述

我有这个模型

class Vacancy(models.Model):
    user = models.ForeignKey(User, null=True, blank=True, default = None)
    name = models.CharField(max_length=64)

在管理员中，我尝试在没有用户的情况下创建一个空缺.它会引发错误club_vacancy.user_id 可能不是 NULL".我是不是做错了什么?

When in admin i try to creat a vacancy without a user. And it throws an error " club_vacancy.user_id may not be NULL". Am i doing something wrong?

推荐答案

club_vacancy.user_id 不能为 NULL

看起来很像来自您的数据库而不是来自 Django 的错误.

Looks very much like an error from your database, rather than from Django.

您很可能在运行 manage.py syncdb 后添加了 null=True.您需要修改数据库架构以允许该列中有空值.

It seems most likely that you added null=True after running manage.py syncdb. You'll need to modify your database schema to allow null values in that column.

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