django login required decorator

1from django.contrib.auth import authenticate, login
2
3def my_view(request):
4    username = request.POST['username']
5    password = request.POST['password']
6    user = authenticate(request, username=username, password=password)
7    if user is not None:
8        login(request, user)
9        # Redirect to a success page.
10        ...
11    else:
12        # Return an 'invalid login' error message.
13        ...
14

1from django.contrib.auth.decorators import login_required
2
3@login_required
4def my_view(request):
5    ...

1from django.contrib.auth.mixins import LoginRequiredMixin
2
3class MyView(LoginRequiredMixin, View):
4    login_url = '/login/'
5    redirect_field_name = 'redirect_to'
6

1def login_view(request):
2    if request.method == 'GET':
3        cache.set('next', request.GET.get('next', None))
4
5    if request.method == 'POST':
6        # do your checks here
7
8        login(request, user)
9
10        next_url = cache.get('next')
11        if next_url:
12            cache.delete('next')
13            return HttpResponseRedirect(next_url)
14
15    return render(request, 'account/login.html')