Django: Check if a user is logged in before allowing them to register?

Question

New to Django here. I am setting up a registration page and I would like to ensure that someone who is currently logged in can't create a new account.

So far I have a form like this:

class RegisterView(FormView):
    template_name = 'users/register_user.html'
    success_url = 'thank_you'

    def get(self, request):
        if request.user.is_authenticated():
            # If a user is logged in, redirect them to a page informing them of such
            return render(request, 'users/already_logged_in.html')
        else:
            # would like to direct the user to the normal registration page

    def post(self, request):
        user_form = UserCreateForm(request.POST)
        if user_form.is_valid():
            username = user_form.clean_username()
            password = user_form.clean_password2()
            user_form.save()
            user = authenticate(username=username,
                                password=password)
            login(request, user)
            return render(request, 'home.html')
        return render(request, 'register_user.html', {'form': user_form})

I suspect that I might have to use mixins (I'm also confused about what they are) so if they are part of the solution please expand a little bit.

What should I include after the "else" to get it to pass the usual registration page?

Thank you for your help in advance.

Answer 1

Just return what the parent FormView would have returned

def get(self, request):
    if request.user.is_authenticated():
        # If a user is logged in, redirect them to a page informing them of such
        return render(request, 'users/already_logged_in.html')
    else:
        return super(RegisterView, self).get(request)

You'll need to set form_class on your view, rather than in your post Method, look at the django docs for how to use FormView https://docs.djangoproject.com/en/1.7/ref/class-based-views/generic-editing/#formview