Question

我在模型中有两个类问答。两者都通过ForeignKey连接到用户。在模板中，我想打印用户中所有的looged答案。这很容易发生。但我的问题是我想得到与答案相对应的问题。获得问题的查询是什么？下面给出的模型，模板和视图 -

class Question(models.Model):
    title = models.CharField(max_length=200, blank=True, null=True)
    description = models.TextField()
    pub_date = models.DateTimeField()
    user = models.ForeignKey(User, on_delete=models.CASCADE)

    def __str__(self):
        return self.title

class Answer(models.Model):
    answer_text = models.TextField()
    questions = models.ForeignKey(Question, on_delete=models.CASCADE)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    pub_date = models.DateTimeField()

    def __str__(self):
        return self.answer_text

的观点：

def answered_by_me(request, user_id):
    user = User.objects.get(pk=user_id)
    answers = user.answer_set.all()
    questions = user.question_set.all()
    context = {'answers': answers, 'questions': questions, 'user_id': user_id}
    return render(request, template_name='ans/answered_by_me.html', context=context)

模板：

{% block body %}
    {{ answers }}
    {% if answers %}
        <ul>
            {% for answer in answers %}

                <li> {{ answer }}</li>

            {% endfor %}
        </ul>
    {% endif %}

{% endblock %}

Answer 1

您不需要新的查询，除非您想将问题ID传递给您的视图。

不应循环答案，而应循环问题：

{% for question in questions %}
    <li>{{ question }}</li>
    {% for answer in question.answer_set.all %}
    <li> {{ answer }}</li>
    {% endfor %}
{% endfor %}

我认为这可行。

如何在django中从answer对象获取Qustion？

1 个答案: