Question

how do I change ‘username-password login’ to ’email-password login’ on django-registration

Answer 1

You can’t easily store emails in django.contrib.auth.model.User‘s username field, so you’ll need a different auth backend. Put the following somewhere and add its path to AUTHENTICATION_BACKENDS. See http://docs.djangoproject.com/en/dev/topics/auth/#writing-an-authentication-backend

from django.contrib.auth.models import User

class EmailBackend(object):
    """ Authenticates against the email field of django.contrib.auth.models.User
    """

    def authenticate(self, email=None, password=None):
        # Try using the email if it is given
        if email:
            for user in User.objects.filter(email=email):
                if user.check_password(password):
                    return user

    def get_user(self, user_id):
        try:
            return User.objects.get(pk=user_id)
        except User.DoesNotExist:
            return None

Then, in your views, authenticate by calling django.contrib.auth.authenticate.

Two things to note:

• You will probably want to keep the default AUTHENTICATION_BACKEND there, especially if you want to use the Django admin.
• If users are signing themselves up without a username, you’ll need to create one for them. I use the base64 version of a uuid for that

Set the username in a save method somewhere (eg in your new user form):

import uuid, binascii
username = binascii.b2a_base64(uuid.uuid4().bytes)