login_required render_to discussion create html def topic_create reque

@login_required
@render_to('discussion/create.html')
def topic_create(request, group_slug):
    group = get_object_or_404(UserGroup, slug=group_slug)
    if not group.can_post(request.user):
        raise Http403(_('You can\' post comments in this group!'))
    if request.method == 'POST':
        form = forms.TopicCreateForm(request.user, group, request.POST)
        if form.is_valid():
            topic = form.save()
            return HttpResponseRedirect(topic.get_absolute_url())
    else:
        form = forms.TopicCreateForm(request.user, group)
    return {'group': group, 'form': form}