字段“id”需要一个数字，但得到了“on”

Question

我正在做Django文档中包含的一个项目

当我输入URLhttp://localhost:8000/polls/1/vote/时，我将在下面的行中得到错误：

invalid literal for int() with base 10: 'on'

以下是我的视图定义：

def vote(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    try:
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
    except(KeyError, Choice.DoesNotExist):
        return render(request, 'polls/detail.html', {
            'question': question,
            'error_message': "You didn't select a choice",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))

Answer 1

您已在带有字段request.POST["choice"]的post消息中发送了值"on"，该字段不是需要数字的selected_choice = question.choice_set.get(pk=request.POST['choice'])的有效pk