views.py 文件源码

def watch(request, poll_url):
    current_poll = get_object_or_404(Poll, url=poll_url)

    if not current_poll.can_watch(request.user, request):
        messages.error(
            request, _("You are not allowed to watch this poll.")
        )
        return redirect('poll', poll_url)

    if current_poll.user_watches(request.user):
        poll_watch = PollWatch.objects.get(poll=current_poll, user=request.user)
        poll_watch.delete()
    else:
        poll_watch = PollWatch(poll=current_poll, user=request.user)
        poll_watch.save()
    return redirect('poll', poll_url)