Help))

class TopicDetailView(DetailView):
    template_name = 'help/topic_detail.html'
    queryset = Topic.objects.all()
    context_object_name = 'topic'

    def get(self,request):
        form = NewCommentForm()
            #Тут рендерить

    def post(self,request):
        form = NewCommentForm(data=request.POST)
        comment = form.save(commit=False)
        comment.author = request.user
        comment.topic = self.object
        comment.save()
        # Tут рендерить


    def get_object(self):
        slug = self.kwargs.get('slug')
        year = self.kwargs.get('year')
        month = self.kwargs.get('month')
        day = self.kwargs.get('day')

        return get_object_or_404(Topic,
                                 slug=slug, created__year=year,
                                 created__month=month, created__day=day)