创建一个Django表单来保存两个模型

本文介绍了创建一个Django表单来保存两个模型的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有常规的Django 用户模型和一个 UserDetails 模型（ OneToOneField with User ），它作为 User 模型的扩展名。 （我尝试了Django 1.5的功能，这是一个令人头疼的奇怪的文档，所以我坚持使用 OneToOneField 选项）

I have the regular Django User model and a UserDetails model (OneToOneField with User), which serves as an extension to the User model. (I tried Django 1.5's feature and it was a headache with strangely horrible documentation, so I stuck with the OneToOneField option)

因此，在我建立一个自定义注册页面的过程中，该页面将包含由 User 字段和 UserDetails 字段，我想知道是否有一种方法可以自动生成表单（具有所有的验证）从这两个相关的模型中。我知道这适用于一个模型的形式：

So, in my quest to build a custom registration page that will have a registration form comprised of the User fields and the UserDetails fields, I wondered if there was a way to generate the form automatically (with all of its validations) out of these two related models. I know this works for a form made of one model:

class Meta: model = MyModel

但是，无论如何，为包含两个相关模型的表单获得类似的功能？

But is there anyway to get a similar functionality for a form comprised of two related models?

推荐答案

from django.forms.models import model_to_dict, fields_for_model class UserDetailsForm(ModelForm): def __init__(self, instance=None, *args, **kwargs): _fields = ('first_name', 'last_name', 'email',) _initial = model_to_dict(instance.user, _fields) if instance is not None else {} super(UserDetailsForm, self).__init__(initial=_initial, instance=instance, *args, **kwargs) self.fields.update(fields_for_model(User, _fields)) class Meta: model = UserDetails exclude = ('user',) def save(self, *args, **kwargs): u = self.instance.user u.first_name = self.cleaned_data['first_name'] u.last_name = self.cleaned_data['last_name'] u.email = self.cleaned_data['email'] u.save() profile = super(UserDetailsForm, self).save(*args,**kwargs) return profile