I would like to put a Poll Voting Form on any page like a blog post page or
the homepage.
Here is the page that I display the form and the view that it gets posted
to in the form action attribute.
I would like to be able to submit the form but stay on that page and have
the form change into the results or a link to the results.
class DetailView(PublishedMixin, generic.DetailView):
model = Poll
template_name = 'polls/detail.html'
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context['form'] = PollForm(instance=self.get_object())
return context
<form action="{% url 'polls:vote' poll.id %}" method="post">{% csrf_token
%}{{form.as_p}}<input type="submit" value="Vote" /></form>
class VoteView(PublishedMixin, generic.DetailView):
model = Poll
''' def get_form(self, *args, **kwargs): form =
PollForm(instance=self.get_object()) #return super(VoteView,
self).get_form(*args, **kwargs) return form '''
@property
def success_url(self):
return reverse(
'polls:results', args=(self.get_object().id,))
def post(self, request, *args, **kwargs):
form = PollForm(request.POST, instance=self.get_object())
if form.is_valid():
selected_choice = form.cleaned_data['choice']
selected_choice.votes += 1
selected_choice.save()
return HttpResponseRedirect(request.META['HTTP_REFERER'])
I also thought about doing a mixin on the page, but I can't just render the
page with the form attribute equal to something else, becuase I would need to
redirect to avoid the refresh problem.
class PollFormMixin(SingleObjectMixin): """ puts form and "view results
link" in context and validates and saves the form """ model = Poll
def get_context_data(self, **kwargs): context = super(PollFormMixin,
self).get_context_data(**kwargs) form =
PollForm(instance=self.get_object()) context['form'] = form
return context def post(self, request, *args, **kwargs): form =
PollForm(request.POST, instance=self.get_object()) if form.is_valid():
form.save() return HttpResponseRedirect(self.success_url)
else: return render(request, self.template_name,
{'form': form, 'poll': self.get_object()})
class VoteView(PublishedPollMixin, PollFormMixin, DetailView): """ Vote
on a poll """ model = Poll template_name = 'polls/detail.html'
@property def success_url(self): return reverse(
'polls:results', args=(self.get_object().id,))
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