Django: Redirect logged in users from login page

Question

I want to set up my site so that if a user hits the /login page and they are already logged in, it will redirect them to the homepage. If they are not logged in

Answer 1

Since class based views (CBVs) is on the rise. This approach will help you redirect to another url when accessing view for non authenticated users only.

In my example the sign-up page overriding the dispatch() method.

class Signup(CreateView):
    template_name = 'sign-up.html'

    def dispatch(self, *args, **kwargs):
        if self.request.user.is_authenticated:
            return redirect('path/to/desired/url')
        return super().dispatch(*args, **kwargs)

Cheers!

Answer 2

anonymous_required decorator

For class based views

Code:

from django.shortcuts import redirect

def anonymous_required(func):
    def as_view(request, *args, **kwargs):
        redirect_to = kwargs.get('next', settings.LOGIN_REDIRECT_URL )
        if request.user.is_authenticated():
            return redirect(redirect_to)
        response = func(request, *args, **kwargs)
        return response
    return as_view

Usage:

url(r'^/?$',
   anonymous_required(auth_views.login),
),
url(r'^register/?$',
    anonymous_required(RegistrationView.as_view()),
    name='auth.views.register'
),
# Could be used to decorate the dispatch function of the view instead of the url

For view functions

From http://blog.motane.lu/2010/01/06/django-anonymous_required-decorator/

Code:

from django.http import HttpResponseRedirect

def anonymous_required( view_function, redirect_to = None ):
    return AnonymousRequired( view_function, redirect_to )

class AnonymousRequired( object ):
    def __init__( self, view_function, redirect_to ):
        if redirect_to is None:
            from django.conf import settings
            redirect_to = settings.LOGIN_REDIRECT_URL
        self.view_function = view_function
        self.redirect_to = redirect_to

    def __call__( self, request, *args, **kwargs ):
        if request.user is not None and request.user.is_authenticated():
            return HttpResponseRedirect( self.redirect_to )
        return self.view_function( request, *args, **kwargs )

Usage:

@anonymous_required
def my_view( request ):
    return render_to_response( 'my-view.html' )

Answer 3

All you have to do is set the "root" url to the homepage view. Since the homepage view is already restricted for logged on users, it'll automatically redirect anonymous users to the login page.

Kepp the url as it is. And add something like:

(r'^$', 'my_project.my_app.views.homepage'),