views.py 文件源码

def edit_news(request, contest_id, news_id):
    contest = get_object_or_404(models.Contest, pk=contest_id)
    news = get_object_or_404(models.News, pk=news_id)

    if contest.id != news.contest_id:
        return HttpResponseNotFound()

    if request.method == 'POST':
        form = forms.NewsForm(data=request.POST)
        if form.is_valid():
            new_news = models.News(
                author=news.author,
                contest=contest,
                created_at=news.created_at,
                updated_at=news.updated_at,
                **form.cleaned_data
            )
            new_news.id = news.id
            new_news.save()

            messages.success(request, 'News saved')

            return redirect(new_news)
    else:
        form = forms.NewsForm(initial=news.__dict__)

    return render(request, 'contests/edit_news.html', {
        'current_contest': contest,

        'contest': contest,
        'news': news,
        'form': form,
    })