Django基于类的视图-如果用户已登录，则重定向

Question

I have a login view which looks like:

class LoginView(TemplateView):

template_name = 'login.html'

def post(self, request):
    username = request.POST['username']
    password = request.POST['password']
    user = authenticate(username=username, password=password)
    if user:
        login(request, user)
        return redirect(reverse('index'))
    else:
        messages.add_message(request, messages.ERROR, 'Login failed')
        return render(request, self.template_name, {'username' : username})

Now, I'd like to modify it so if a user is alredy logged in and visits this url, template isn't rendered and insted he is redirected to the index page (or any other than the login one). I've tried overriding get method but it didn't work. What's the proper solution then?

Answer 1

def post(self, request):
   if request.user.is_authenticated():
         return HttpResponseRedirect("/yourIndex/")
   else:
         username = request.POST['username']
         password = request.POST['password']
         user = authenticate(username=username, password=password)
         if user:
            login(request, user)
            return redirect(reverse('index'))
         else:
            messages.add_message(request, messages.ERROR, 'Login failed')
            return render(request, self.template_name, {'username' : username})