Django, redirect all non-authenticated users to landing page

Question

I have a django website with many urls and views. Now I have asked to redirect all non-authenticated users to a certain landing page. So, all views must check if user.is_a

Answer 1

Maybe too late but in django 1.9+ it's too easy. Django introduced Login Required mixin for generic classes and this a great example here by William S. Vincent

simply in your view add LoginRequiredMixin as parent class

from django.contrib.auth.mixins import LoginRequiredMixin

class BlogUpdateView(LoginRequiredMixin, UpdateView):
model = Post
template_name = 'post_edit.html'
fields = ['title', 'body']

Also you can use login_required decorator for method request