python - 如何在模板中显示ManyToMany字段

Question

我想知道如何在 ManyToMany 字段中检索我的模板...例如，在我的模型中，我想检索与每个问题对应的页面并将其发布到模板中......我的类(class)页面中有 4 个值(“访问 1 访问 2 访问 3, 4 .. 访问”)我在数据库中将每个问题与“访问”相关联

我希望现在可以看到如何访问我的模板中的任何问题。

我将分享我的模型:

class Page(models.Model):
    title = models.CharField(max_length=30)


    def __str__(self):
        return self.title

class Question(models.Model):
    label = models.CharField(max_length=30)
    page = models.ManyToManyField(Page)

    def __str__(self):
            return self.label

class Reply(models.Model):
    question = models.ForeignKey(Question)
    user = models.ForeignKey(Personne)
    answer = models.CharField(max_length=30)
    creationDate = models.DateTimeField(default=datetime.datetime(2016, 1, 20, 15, 4, 21, 467165))

    def __str__(self):
        return str(self.answer)

还有我的模板:

{% for reply in replies %}<br>
    <br> {{ reply.user }}
    {{ reply.question }} -
    {{ reply.answer }}
    (dans la :{% for page in questions.page %} {{ page }}) {% endfor %}  #this is this line who doesn't work 
{% endfor %}

如何调用给定问题的模板页面？

EDIT :

def reply(request):
    replies = Reply.objects.all()
    questions = Question.objects.all()
    logged_user = get_logged_user_from_request(request)
    pages = Page.objects.all()
    form = ReplyBisForm(request.GET)
    personnes = Personne.objects.all()
    if logged_user:
        if len(request.GET) > 0:
            form = ReplyBisForm(request.GET)
            if form.is_valid():
                form.save(commit=True)
                return HttpResponseRedirect('/reply')
            else:
                return render_to_response('polls/reply.html', {'personnes': personnes, 'replies': replies, 'questions': questions,'pages':pages, 'form': form})
        else:
            form = ReplyBisForm()
            return render_to_response('polls/reply.html', {'personnes':personnes, 'replies': replies, 'questions': questions, 'pages':pages, 'form': form})
    else:
    return HttpResponseRedirect('/login')

Answer 1

由于 ManyToMany 字段转换为 RelatedManager对于每个模型实例，您应该指定相关对象的子集，或者直接使用 all() :

(dans la :{% for page in reply.question.page.all %} {{ page }}) {% endfor %}