python - 如何从我的 View 中设置 django 通用外键？

Question

我有 4 个表单，用户通过单击一个 Submit 按钮来提交。形式为:

1. 人员表单 - 将保存到人员模型
2. 地址表单 - 将保存到地址模型
3. 电子邮件表单 - 将保存到电子邮件模型
4. 电话表单 - 将保存到电话型号。

因此，一个人可以拥有多个地址、电子邮件和电话号码。所以，我在 Person 模型中这样做了:

class Person(models.Model):
    first_name = models.CharField(max_length=99)
    middle_name = models.CharField(max_length=99, blank=True, null=True)
    last_name = models.CharField(max_length=99, blank=True, null=True)
    address = GenericRelation('Address')
    phone = GenericRelation('Phone')
    email = GenericRelation('Email')

我有这 3 行以及它们各自的模型字段:Address、Phone 和 Email

content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')

现在，当我收到用户的表单时，如何在我的 View 中正确地将数据保存到这些模型中？这是我到目前为止所拥有的。

 if request.method == 'POST':
        if person_form.is_valid() and address_form.is_valid() and email_form.is_valid() \
                and phone_form.is_valid():

            address = address_form.save()
            email = email_form.save()
            phone = phone_form.save()

            person = person_form.save(commit=False) #This person model has a generic foreign key relation with Address, Email and Phone
            person.address = (address)  #This is where I need help. Am I thinking right? Is this the right way to save?

Answer 1

需要在定义GFK的模型中设置内容对象，我修改了代码，

 if request.method == 'POST':
                if person_form.is_valid() and address_form.is_valid() and email_form.is_valid() \
                        and phone_form.is_valid():

                person = person_form.save()

                address = address_form.save(commit=False)
                address.content_object = person
                address.save()
                email = email_form.save(commit=False)
                email.content_object = person
                email.save()
                phone = phone_form.save(commit=False)
                phone.content_object = person
                phone.save()

但我有一个严重的疑问？为什么您在模型中使用通用外键？这些模型是否可以引用 Person 之外的任何其他模型。