How to check in Base Views that the user is already logged in and not show him the login page?

Question

Django

class LoginFormView(FormView):

    form_class = AuthenticationForm

    template_name = "login.html"

    success_url = "/"

    def form_valid(self, form):
        self.user = form.get_user()

        login(self.request, self.user)
        return super(LoginFormView, self).form_valid(form)

Answer 1

https://docs.djangoproject.com/en/1.11/ref/contrib...

Answer 2

from django.urls import reverse
from django.shortcuts import redirect

class AlreadyLoggedIn(object):
    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated:
            return redirect(reverse('your-url'))
        else:
            return super(AlreadyLoggedIn, self).dispatch(request, *args, **kwargs)

And now it only remains to add:

class LoginFormView(AlreadyLoggedIn, FormView):
...