from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, Group from django.db import models class Email(models.Model): email = models.EmailField(verbose_name='email address', max_length=255, unique=True) class CustomUserWithFKManager(BaseUserManager): def create_superuser(self, username, email, group, password): user = self.model(username_id=username, email_id=email, group_id=group) user.set_password(password) user.save(using=self._db) return user class CustomUserWithFK(AbstractBaseUser): username = models.ForeignKey(Email, models.CASCADE, related_name='primary') email = models.ForeignKey(Email, models.CASCADE, to_field='email', related_name='secondary') group = models.ForeignKey(Group, models.CASCADE) custom_objects = CustomUserWithFKManager() USERNAME_FIELD = 'username' REQUIRED_FIELDS = ['email', 'group']