Django 中带有 OneToOneField 的 ModelForm

Question

我在 Django 中有两个模型与 OneToOneField（PrinterProfile 和 PrinterAdress）相关。我正在尝试使用 PrinterProfileForm 创建一个表单，但由于某种原因它没有将 PrinterAddress 字段传递到表单中（它不是由模板中的 Django "magic" 呈现的）。

我应该怎么做才能让我的 PrinterProfileForm 也包括来自 PrinterAddress 的字段（它的相关 OneToOneField）？

非常感谢

class PrinterProfile(TimeStampedModel):
    user = models.OneToOneField(User)
    phone_number = models.CharField(max_length=120, null=False, blank=False)
    additional_notes = models.TextField()
    delivery = models.BooleanField(default=False)
    pickup = models.BooleanField(default=True)


# The main address of the profile, it will be where are located all the printers.    
class PrinterAddress(TimeStampedModel):
    printer_profile = models.OneToOneField(PrinterProfile)
    formatted_address = models.CharField(max_length=200, null=True)
    latitude = models.DecimalField(max_digits=25, decimal_places=20)  # NEED TO CHECK HERE THE PRECISION NEEDED.
    longitude = models.DecimalField(max_digits=25, decimal_places=20)  # NEED TO CHECK HERE THE PRECISION NEEDED.
    point = models.PointField(srid=4326)

    def __unicode__(self, ):
        return self.user.username

class PrinterProfileForm(forms.ModelForm):
    class Meta:
        model = PrinterProfile
        exclude = ['user']

Answer 1

您必须为 PrinterAddress 创建第二个表单并在您的视图中处理这两个表单：

if all((profile_form.is_valid(), address_form.is_valid())):
    profile = profile_form.save()
    address = address_form.save(commit=False)
    address.printer_profile = profile
    address.save()

当然，在模板中，您需要在一个 <form> 标签下显示两种形式 :-)

<form action="" method="post">
    {% csrf_token %}
    {{ profile_form }}
    {{ address_form }}
</form>

Answer 2

补充：

如果您有自定义清理方法，则需要添加一个 try/except 案例。对于所提供的示例，如果 address 有一个 clean() 方法来验证您需要将其更改为的内容：

def clean(self):
    try:
        printer_profile = self.printer_profile 
    except ObjectDoesNotExist:
        pass
    else:
        ...code to validate address...

Django 中带有 OneToOneField 的 ModelForm

ModelForm with OneToOneField in Django

django

one-to-one

django-forms