Redirect User to another url with django-allauth log in signal

Question

I am using Django-allauth for my login/signup related stuff, so when a user signs up(first time) into my site, I am redirecting him to /thanks/ page by defining below setting in settings.py file

LOGIN_REDIRECT_URL = '/thanks/'

But when the user tried to log in for the next time(if already registered) I should redirect him to '/dashboard/' URL

So tried to alter that with Django-allauth signals like below which is not working at all

@receiver(allauth.account.signals.user_logged_in)
def registered_user_login(sender, **kwargs):
    instance = User.objects.get_by_natural_key(kwargs['user'])
    print instance.last_login==instance.date_joined,"??????????????????????????????"
    if not instance.last_login==instance.date_joined:
        return HttpResponseRedirect(reverse('dashboard'))

So can anyone please let me know how to redirect a user to /dashboard/ for the normal login, am I doing anything wrong in the above signal code?

Edit

After some modification according to the below answer by pennersr, my AccountAdapter class looks like below

from allauth.account.adapter import DefaultAccountAdapter
# from django.contrib.auth.models import User

class AccountAdapter(DefaultAccountAdapter):

  def get_login_redirect_url(self, request):
    if request.user.last_login == request.user.date_joined:
        return '/registration/success/'
    else:
        return '/dashboard/'

But still, it is redirecting the user to /dashboard/, my logic in determining the first time user is wrong?

Answer 1

In general, you should not try to put such logic in a signal handler. What if there are multiple handlers that want to steer in different directions?

Instead, do this:

# settings.py:
ACCOUNT_ADAPTER = 'project.users.allauth.AccountAdapter'


# project/users/allauth.py:
class AccountAdapter(DefaultAccountAdapter):

  def get_login_redirect_url(self, request):
      return '/some/url/'

Answer 2

The two datetimes last_login and date_joined will always be different, although it might only be a few milliseconds. This snippet works:

# settings.py:
ACCOUNT_ADAPTER = 'yourapp.adapter.AccountAdapter'

# yourapp/adapter.py:
from allauth.account.adapter import DefaultAccountAdapter
from django.conf import settings
from django.shortcuts import resolve_url
from datetime import datetime, timedelta

class AccountAdapter(DefaultAccountAdapter):

    def get_login_redirect_url(self, request):
        threshold = 90 #seconds

        assert request.user.is_authenticated()
        if (request.user.last_login - request.user.date_joined).seconds < threshold:
            url = '/registration/success'
        else:
            url = settings.LOGIN_REDIRECT_URL
        return resolve_url(url)

One important remark to pennersr answer: AVOID using files named allauth.py as it will confuse Django and lead to import errors.

Answer 3

You can simply define those two other signals using user_logged_in signal as base. A good place to put it is on a signals.py inside a accounts app, in case you have one, or in you core app. Just remember to import signals.py in you __init__.py.

from django.dispatch import receiver, Signal

pre_user_first_login = Signal(providing_args=['request', 'user'])
post_user_first_login = Signal(providing_args=['request', 'user'])


@receiver(user_logged_in)
def handle_user_login(sender, user, request, **kwargs):
    first_login = user.last_login is None
    if first_login:
        pre_user_first_login.send(sender, user=user, request=request)
    print 'user_logged_in'
    if first_login:
        post_user_first_login.send(sender, user=user, request=request)


@receiver(pre_user_first_login)
def handle_pre_user_first_login(sender, user, request, **kwargs):
    print 'pre_user_first_login'


@receiver(post_user_first_login)
def handle_post_user_first_login(sender, user, request, **kwargs):
    print 'post_user_first_login'