from django.contrib.auth.models import AbstractBaseUser
from django.db import models


class TestUser(AbstractBaseUser):
    identifier = models.CharField(max_length=40, unique=True, db_index=True)
    uid_number = models.IntegerField()

    USERNAME_FIELD = "identifier"

    def get_full_name(self):
        return self.identifier

    def get_short_name(self):
        return self.identifier

    def get_first_name(self):
        return "Alice"

    def set_first_name(self, value):
        raise Exception("Oops...")

    first_name = property(get_first_name, set_first_name)