外键形式和未绑定形式问题

Question

我有两个模型，User和Freelancer：

#models.py
class User(AbstractBaseUser):

class Freelancer(models.Model):
    user = models.ForeignKey(User)

我有两种表格：

#forms.py
class UserUpdateForm(forms.ModelForm):
    class Meta:
        model = User
        fields = ('email',)

class FreelanceUpdateForm(forms.ModelForm):
    class Meta:
        model = Freelancer
        fields = ('first_name', 'surname', 'university', 'biography', 'skills')

我想在同一页上同时显示这两个视图，因此我创建了一个视图：

def profile(request, pk):
    if request.method == 'POST':
        user_form = UserUpdateForm(request.POST, instance=request.user)
        freelancer_form = FreelanceUpdateForm(request. POST, instance=request.user.id)

        if all([user_form.is_valid(), freelancer_form.is_valid()]):
            user = user_form.save()
            freelancer_form = freelancer_form.save()
            return redirect(user)
    else:
        user_form = UserUpdateForm(instance=request.user)
        freelancer_form = FreelanceUpdateForm(instance=request.user.id)

    return render(request, 'freelancestudent/profile.html',{
        'user_form': user_form,
        'freelancer_form': freelancer_form,
    })

问题是我无法获得带有freelancer_form = FreelanceUpdateForm(instance=request.user.id)的freelancer_form。我尝试了freelancer_form = FreelanceUpdateForm(instance=Freelancer(user_id=request.user.id))填充表，但它不会将其保存为有效，因为它没有绑定

我如何获得相关的自由职业者

Answer 1

为此，您需要在Freelancer.user中指定related_name才能反向访问它：

class Freelancer(models.Model):
    user = models.ForeignKey(User, related_name='freelancer')

现在，您可以使用简单的User.freelancer从User模型访问Freelancer，这样您就可以创建如下表单：

freelancer_form = FreelanceUpdateForm(request. POST, instance=request.user.freelancer)