Log in user using either email address or username in Django

Question

I am trying to create an auth backend to allow my users to log in using either their email address or their username in Django 1.6 with a custom user model. The backend work

Answer 1

Note that for the most solutions like these you should add email uniqueness validation for User model to avoid the authentication vulnerability

# models.py
from django.contrib.auth.models import AbstractUser


class User(AbstractUser):
    objects = UserManager()
    email = models.EmailField(_('email address'), unique=True)

    class Meta:
        verbose_name = _('user')
        verbose_name_plural = _('users')
        db_table = 'auth_user'
        swappable = 'AUTH_USER_MODEL'

and then you have to update settings.py defining the AUTH_USER_MODEL property

AUTH_USER_MODEL = '[your_app_name].User'