USERNAME_FIELD
A string describing the name of the field on the User model that is used as the unique identifier. This will usually be a username of some kind, but it can also be an email address, or any other unique identifier. The field must be unique (i.e., have unique=True set in its definition), unless you use a custom authentication backend that can support non-unique usernames.
In the following example, the field identifier is used as the identifying field:
1 2 3 4 | class MyUser(AbstractBaseUser): identifier = models.CharField(max_length=40, unique=True) ... USERNAME_FIELD = 'identifier' |
USERNAME_FIELD now supports ForeignKeys. Since there is no way to pass model instances during the createsuperuser prompt, expect the user to enter the value of to_field value (the primary_key by default) of an existing instance.
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