views.py 文件源码

def open_task(request, contest_id, task_id, participant_id):
    contest = get_object_or_404(models.TaskBasedContest, pk=contest_id)
    task = get_object_or_404(tasks_models.Task, pk=task_id)
    if not contest.has_task(task):
        return HttpResponseNotFound()

    if not is_manual_task_opening_available_in_contest(contest):
        messages.error(request, 'Manual task opening is forbidden for this contest')
        return redirect(urlresolvers.reverse('contests:task_opens', args=[contest.id, task.id]))

    participant = get_object_or_404(models.AbstractParticipant, pk=participant_id)
    if participant.contest_id != contest.id:
        return HttpResponseNotFound()

    qs = tasks_models.ManualOpenedTask.objects.filter(
        contest=contest,
        task=task,
        participant=participant
    )
    # Toggle opens state: close if it's open, open otherwise
    if qs.exists():
        qs.delete()
        if is_task_open(contest, task, participant):
            messages.warning(request, 'Task is opened for this participant not manually, you can\'t close it')
        else:
            messages.success(request, 'Task is closed for %s' % participant.name)
    else:
        tasks_models.ManualOpenedTask(
            contest=contest,
            task=task,
            participant=participant
        ).save()
        messages.success(request, 'Task is opened for %s' % participant.name)

    return JsonResponse({'done': 'ok'})