The field named as the USERNAME_FIELD should not be included in REQUIRED_FIELDS on a swappable User model.

[Alper Cugun]

I've created a User model that subclasses AbstractBaseUser and contains just this:

USERNAME_FIELD = 'email'

If I try to use that django gives this error:
"The field named as the USERNAME_FIELD should not be included in REQUIRED_FIELDS on a swappable User model."

Which I can't figure out because I haven't put anything in REQUIRED_FIELDS.

[Baptiste Mispelon]

Hi,

AbstractBaseUser does not have an email` field so the following is invalid:

class MyCustomUser(AbstractBaseUser):
    USERNAME_FIELD = 'email'

This will raise the following error: MyCustomUser has no field named 'email'

Now, if you subclass AbstractUser instead in the same fashion, then you get the error message you indicated.

The reason for this is that AbstractUser defines REQUIRED_FIELDS = ['email'], hence the error message.