username and email

I am trying to set up a custom user that will use email as the field for loggin in and authentication but also have the user name as an optional field. So I have set up the user model like so

from django.db import models
from django.contrib.auth.models import AbstractUser, BaseUserManager
from django.utils.translation import ugettext_lazy as _

class CustomUserManager(BaseUserManager):
    """Define a model manager for User model with no username field."""

    def _create_user(self, username, email, password=None, **extra_fields):
        """Create and save a User with the given email and password."""
        if not email:
            raise ValueError('The given email must be set')
        email = self.normalize_email(email)
        user = self.model(email=email, username=username, **extra_fields)
        return user

    def create_user(self, username, email, password=None, **extra_fields):
        extra_fields.setdefault('is_staff', False)
        extra_fields.setdefault('is_superuser', False)
        return self._create_user(email, username, password, **extra_fields)

    def create_superuser(self, username,  email, password=None, **extra_fields):
        """Create and save a SuperUser with the given email and password."""
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)

        if extra_fields.get('is_staff') is not True:
            raise ValueError('Superuser must have is_staff=True.')
        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have is_superuser=True.')

        return self._create_user(username, email, password, **extra_fields)

class SbnUser(AbstractUser):
	username = models.CharField( _('username'), max_length=30, blank=True)
	email = models.EmailField(_('email address'), unique=True)


	objects = CustomUserManager()

but if I run the app and I try to create a super user I am taken through the steps to create the super user but I am not given the option to enter a user name although it is in the arguments. I get the following error:

TypeError: create_superuser() missing 1 required positional argument: 'username'

So what am I missing here please?

From the documentation for create_superuser:

The prototype of create_superuser() should accept the username field, plus all required fields as arguments.

Your username field is identified as ‘email’, and username isn’t in the list of required fields, so I don’t see where it would be passed to that method.


Hi Ken

Ok but if I put the username field in the required fields then that would make the field reqired, which I don’t want cause I want it to be an optional field and not required, but it must still show up on the create user process. Or is the REQUIRED_FIELDS something else I don’t know about?

ok so I did what you said and added username as a required field and now it shows up. It’s a little confusing but now it’s working so thank you again. Why would the password be specified as =None in the arguments?

A =<anything> in the parameter list indicates a default value if one isn’t otherwise supplied.

Thanks for your help Ken really appreciate it