User authentication with either username or email.

Hi,

I created a backends.py in my project folder.

backends.py ::

from django.conf import settings

from django.contrib.auth.models import User

class EmailOrUsernameModelBackend(object):

    def authenticate(self, username=None, password=None):

        if '@' in username:

            kwargs = {'email': username}

        else:

            kwargs = {'username': username}

        try:

            user = User.objects.get(**kwargs)

            if user.check_password(password):

                return user

        except User.DoesNotExist:

            return None

    def get_user(self, user_id):

        try:

            return User.objects.get(pk=user_id)

        except User.DoesNotExist:

            return None

And in the views.py,

from django.contrib import auth

from django.contrib.auth.models import User

from tangle.backends import EmailOrUsernameModelBackend

def authentication(request):

    username = request.POST.get('username', '')

    password = request.POST.get('password', '')

    user = authenticate(username=username, password=password)

    if user is not None:

        auth.login(request, user)

        return HttpResponseRedirect('/loggedin/')

    else:

        return HttpResponseRedirect('/invalid_login')

Settings.py

AUTHENTICATION_BACKENDS = (

    'backends.EmailOrUsernameModelBackend',

    'django.contrib.auth.backends.ModelBackend'

)

Now when I login using either username or email it shows an error "global name 'authenticate' is not defined"

So, I used 

user = EmailOrUsernameModelBackend.authenticate(username=username, password=password)

It shows

TypeError at /authentication/

unbound method authenticate() must be called with EmailOrUsernameModelBackend instance as first argument (got nothing instead)

Can anyone help me out in solving the issue?

Thanks.

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
For more options, visit https://groups.google.com/groups/opt_out.