Django:使用OneToOneField的ModelForm

时间:2015-12-18 13:43:09

标签: python django

我有两个由OneToOneField链接的模型:

class User(models.Model):
    name = models.CharField(max_length=100, unique=True)
    email = models.EmailField(blank=True)
    base = models.OneToOneField(BaseUser)
    ...

class BaseUser(models.Model):
    enabled = models.BooleanFiled(default=True)
    ...

我使用ModelForm来显示用户的属性:

class UserForm(ModelForm):
    class Meta:
        model = User
        fields = ['name', 'email', ...]

在我看来:

class UserCreate(generic.CreateView):
    model = User
    template_name = 'user/create.html'
    success_url = reverse_lazy('users:list')
    form_class = UserForm

我想更改用户模板中的已启用属性,但我只能访问User的字段(名称,电子邮件...)。

我该怎么做呢?

2 个答案:

答案 0 :(得分:6)

您可以在模板中渲染2个表单:

def user_create(request):
    if request.method == "POST":
        user_form = UserForm(data=request.POST)
        baseuser_form = BaseUserForm(data=request.POST)
        if user_form.is_valid() and baseuser_form.is_valid():
            base_user = baseuser_form.save()
            user = user_form.save(commit=False)
            user.base = base_user
            user.save()
            return redirect(reverse_lazy('users:list'))
        else:
            ....
    else:
        user_form = UserForm()
        baseuser_form = BaseUserForm()
        return render_to_response('user/create.html', {'user_form': user_form, 'baseuser_form': baseuser_form})

答案 1 :(得分:4)

如果您只想添加一个额外字段,则可以将其添加到UserForm

class UserForm(ModelForm):

    enabled = forms.BooleanField(default=True)

    class Meta:
        model = User
        fields = ['name', 'email', ...]

然后,在form_valid方法中,您可以设置base_user的值。由于它是一个创建视图,我假设你必须先创建它。

class UserCreate(generic.CreateView):

    def form_valid(self, form):
        base_user = BaseUser.objects.create(
            enabled=form.cleaned_data['enabled']
        )
        form.instance.base = base_user
        return super(UserCreate, self).form_valid(form)

如果您想添加多个额外字段,则可能需要BaseUserUser的单独表单。在这种情况下,扩展CreateView会有点棘手,使用基于函数的视图可能更简单,就像在Rohit的回答中一样。