from django.contrib.auth.models import AbstractBaseUser, UserManager

from django.db import models

class CustomUserNonUniqueUsername(AbstractBaseUser):

    """

    A user with a non-unique username.

    This model is not invalid if it is used with a custom authentication

    backend which supports non-unique usernames.

    """

    username = models.CharField(max_length=30)

    email = models.EmailField(blank=True)

    is_staff = models.BooleanField(default=False)

    is_superuser = models.BooleanField(default=False)

    USERNAME_FIELD = "username"

    REQUIRED_FIELDS = ["email"]

    objects = UserManager()