views.py 文件源码

def delete_category(request, contest_id, category_id):
    contest = get_object_or_404(models.TaskBasedContest, pk=contest_id)
    if contest.tasks_grouping != models.TasksGroping.ByCategories:
        return HttpResponseNotFound()
    category = get_object_or_404(categories_models.Category, pk=category_id)
    if not contest.categories_list.categories.filter(id=category.id).exists():
        return HttpResponseNotFound()

    contest.categories_list.categories.remove(category)
    contest.categories_list.save()

    return redirect(urlresolvers.reverse('contests:tasks', args=[contest.id]))