tranquillity/auth_backend.py

   1 from django.contrib.auth import get_user_model
   2 from django.contrib.auth.backends import ModelBackend
   3
   4 class EmailBackend(ModelBackend):
   5     def authenticate(self, username=None, password=None, **kwargs):
   6         UserModel = get_user_model()
   7         try:
   8             user = UserModel.objects.get(email=username)
   9         except UserModel.DoesNotExist:
  10             return None
  11         else:
  12             if user.check_password(password):
  13                 return user
  14         return None