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

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' )