如何使用OnetoOneField扩展用户模型制作用户配置文件表单?

Question

我想使用OnetoOneField创建一个扩展用户模型的表单。它基本上是一个表单，用户可以在其中添加/更新他们注册后的信息。

models.py

class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
username = models.CharField(max_length=120)
name = models.CharField(max_length=120)  # max_length = required
email = models.EmailField(max_length=120)
paypal_id = models.CharField(max_length=120)
bio = models.TextField(max_length=500, blank=True)
def __str__(self):
return self.user.username

forms.py

class UserProfileForm(forms.ModelForm):
class Meta:
model = Profile
fields = ["username", "name", "email", "paypal_id", "bio"]

views.py

def userprofile_view(request):
if request.method == 'POST':
profile_form = UserProfileForm(request.POST)
if profile_form.is_valid():
profile = profile_form.save(commit=False)
profile.save()
return redirect('account')
else:
profile_form = UserProfileForm()
context = {'profile_form': profile_form}
return render(request, 'accounts/account_create.html', context)

template.html

{% extends 'base.html' %}
{% block content %}    
<form action="." method="POST">
{% csrf_token %}
{{ profile_form.as_p }}
<input type="submit" value="Save"/>
</form>
{% endblock %}

我一直得到这个错误当我点击保存:

(1048， "列'user_id'不能为空">

有什么解决办法吗?

Answer 1

您可以使用通用的创建视图同时创建用户模型和概要模型。

形式:

class UserProfileForm(forms.ModelForm):
class Meta:
model = Profile
fields = ["username", "name", "email", "paypal_id", "bio", "user"]
class UserForm(UserCreationForm):
email = forms.EmailField(required=True)
class Meta:
model = User
fields = ['username', 'first_name', 'last_name', 'email', 'password1', 'password2']

视图:

class CreateUserProfileView(LoginRequiredMixin, SuccessMessageMixin, CreateView):
model = Profile
form_class = UserProfileForm
user_form_class = UserForm
template_name = 'accounts/account_create.html'
success_message = "Profile created successfully"
success_url = reverse_lazy('profile-list')
def get(self, request):
profile_form = self.form_class()
user_form = self.user_form_class()
return render(request, self.template_name, {'profile_form': profile_form, 'user_form': user_form})
def post(self, request, *args, **kwargs):
profile_form = self.form_class(request.POST)
user_form = self.user_form_class(request.POST)
if all([profile_form.is_valid(), user_form.is_valid()]):
user = user_form.save()
profile = profile_form.save(commit=False)
profile.user = user
profile.save()
messages.success(request, self.success_message)
else:
return render(request, self.template_name, {'profile_form': profile_form, 'user_form': user_form})
return HttpResponseRedirect(self.success_url)

Answer 2

您需要重写Profile的save()方法，以便在保存Profile时即时创建/更新User。

即:

class Profile(models.Model):
...
def save(self, *args, **kwargs):
if not self.user.pk:
self.user = User.objects.create_user(self.user.username, password=self.user.password)
self.user.save()  # mandatory as create_user is not recognized as save operation
super().save(*args, **kwargs)