Python 在Django polling应用程序中，如何允许用户在多项选择投票中选择和投票多项选项

因此，我跟随Traversy Media的视频，“Python Django速成课程”，这是关于创建轮询应用程序的Django基本应用程序教程。它运行良好，但我希望用户能够选择多个选项进行投票。这可以通过现在设置代码的方式来完成吗

模型是

from django.db import models

class Question(models.Model):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')

    def __str__(self):
        return self.question_text


class Choice(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)

    def __str__(self):
        return self.choice_text

from django.template import loader
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.urls import reverse

from .models import Question, Choice

# Get questions and display them
def index(request):
    latest_question_list = Question.objects.order_by('-pub_date')[:5]
    context = {'latest_question_list': latest_question_list}
    return render(request, 'polls/index.html', context)

# Show specific question and choices
def detail(request, question_id):
  try:
    question = Question.objects.get(pk=question_id)
  except Question.DoesNotExist:
    raise Http404("Question does not exist")
  return render(request, 'polls/detail.html', { 'question': question })

# Get question and display results
def results(request, question_id):
  question = get_object_or_404(Question, pk=question_id)
  return render(request, 'polls/results.html', { 'question': question })

# Vote for a question choice
def vote(request, question_id):
    # print(request.POST['choice'])
    question = get_object_or_404(Question, pk=question_id)
    try:
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the question voting form.
        return render(request, 'polls/detail.html', {
            'question': question,
            'error_message': "You didn't select a choice.",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        # Always return an HttpResponseRedirect after successfully dealing
        # with POST data. This prevents data from being posted twice if a
        # user hits the Back button.
        return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))

视图为

from django.db import models

class Question(models.Model):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')

    def __str__(self):
        return self.question_text


class Choice(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)

    def __str__(self):
        return self.choice_text

from django.template import loader
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.urls import reverse

from .models import Question, Choice

# Get questions and display them
def index(request):
    latest_question_list = Question.objects.order_by('-pub_date')[:5]
    context = {'latest_question_list': latest_question_list}
    return render(request, 'polls/index.html', context)

# Show specific question and choices
def detail(request, question_id):
  try:
    question = Question.objects.get(pk=question_id)
  except Question.DoesNotExist:
    raise Http404("Question does not exist")
  return render(request, 'polls/detail.html', { 'question': question })

# Get question and display results
def results(request, question_id):
  question = get_object_or_404(Question, pk=question_id)
  return render(request, 'polls/results.html', { 'question': question })

# Vote for a question choice
def vote(request, question_id):
    # print(request.POST['choice'])
    question = get_object_or_404(Question, pk=question_id)
    try:
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the question voting form.
        return render(request, 'polls/detail.html', {
            'question': question,
            'error_message': "You didn't select a choice.",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        # Always return an HttpResponseRedirect after successfully dealing
        # with POST data. This prevents data from being posted twice if a
        # user hits the Back button.
        return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))

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抱歉，如果包含所有视图过多。我不想漏掉任何重要的东西。

我相信你的问题的答案就在这里；