src/polls/views.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from django.core.urlresolvers import reverse
   6 from django.shortcuts import get_object_or_404, redirect, render
   7 from django.views.decorators import cache
   8 from django.views.decorators.http import require_http_methods
   9
  10 from .models import Poll, PollItem
  11 from .forms import PollForm
  12
  13
  14 @cache.never_cache
  15 @require_http_methods(['GET', 'POST'])
  16 def poll(request, slug):
  17     poll = get_object_or_404(Poll, slug=slug, open=True)
  18
  19     if request.method == 'POST':
  20         redirect_to = reverse('poll', args=[slug])
  21         form = PollForm(request.POST, poll=poll)
  22         if form.is_valid():
  23             if not poll.voted(request.session):
  24                 try:
  25                     poll_item = PollItem.objects.filter(pk=form.cleaned_data['vote'], poll=poll).get()
  26                 except PollItem.DoesNotExist:
  27                     pass
  28                 else:
  29                     poll_item.vote(request.session)
  30         return redirect(redirect_to)
  31     elif request.method == 'GET':
  32         context = {}
  33         context['poll'] = poll
  34         context['voted_already'] = poll.voted(request.session)
  35         return render(request, 'polls/poll.html', context)