配置不当的表单- Django

Question

最近，我想出了如何在Django中创建注册。问题是只有三个字段-- username、password和它的确认。

在我的项目中，至少有两种不同属性的users类型。Customers和Freelancers.因此，我尝试创建新的模型，就像我在StackOverflow上发现的那样，但是它返回异常：

Exception Type: ImproperlyConfigured
Exception Value:    
Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form UserCreateForm needs updating.

MODELS.PY:

class UserCustomerProfile(models.Model):
    user = models.OneToOneField(User)
    email = models.EmailField()
    age = models.IntegerField()

    def __str__(self):
          return "%s's profile" % self.user

FORMS.PY:

class UserCreateForm(UserCreationForm):
    email = forms.EmailField(required=True)

    class Meta:
        model = User

    def save(self, commit=True):
        if not commit:
            raise NotImplementedError("Can't create User and UserProfile without database save")
        user = super(UserCreateForm, self).save(commit=True)
        user_profile = UserCustomerProfile(user=user, email=self.cleaned_data['email'])
        user_profile.save()
        return user, user_profile

VIEWS.PY:

def register(request):
     if request.method == 'POST':
         form = UserCustomerProfile(request.POST)
         if form.is_valid():
             form.save()
             return HttpResponseRedirect('register/complete/')

     else:
         form = UserCreateForm()
     token = {}
     token.update(csrf(request))
     token['form'] = form

     return render_to_response('register/registration_form.html', token)

你知道怎么解决这个问题吗？

Answer 1

禁止在没有“字段”属性或“排除”属性的情况下创建ModelForm；表单UserCreateForm需要更新。

例如：

class UserCreateForm(UserCreationForm):
    email = forms.EmailField(required=True)

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

Answer 2

您需要在"UserCreateForm(UserCreationForm)“类中将”字段“属性添加到"Meta”内部类中，如下所示：

FORMS.PY:

class UserCreateForm(UserCreationForm):
    email = forms.EmailField(required=True)
    
    class Meta:
        model = User
        fields = ("username", "email") 
        # ↑ ↑ ↑ Here ↑ ↑ ↑   
    def save(self, commit=True):
        if not commit:
            raise NotImplementedError("Can't create User and UserProfile without database save")
        user = super(UserCreateForm, self).save(commit=True)
        user_profile = UserCustomerProfile(user=user, email=self.cleaned_data['email'])
        user_profile.save()
        return user, user_profile

或者，您需要在"UserCreateForm(UserCreationForm)“类中添加”排除“属性到"Meta”内部类，如下所示：

FORMS.PY:

class UserCreateForm(UserCreationForm):
    email = forms.EmailField(required=True)
    
    class Meta:
        model = User
        exclude = ("first_name", "last_name")
        # ↑ ↑ ↑ Here ↑ ↑ ↑
    def save(self, commit=True):
        if not commit:
            raise NotImplementedError("Can't create User and UserProfile without database save")
        user = super(UserCreateForm, self).save(commit=True)
        user_profile = UserCustomerProfile(user=user, email=self.cleaned_data['email'])
        user_profile.save()
        return user, user_profile