Django:Form对象没有属性cleaning_data - save()方法

时间:2013-07-10 10:49:27

标签: python django django-forms

好的,所以我实际上是偶然解决了这个,只想了解发生了什么。

我有自己的用户注册表单BaseCreationForm,它扩展了ModelForm并使用UserProfile作为其模型。所有的验证方法都运行良好,但保存方法给了我悲伤。每当我尝试创建一个用户(在视图中创建配置文件,我可能会重构它)时,Django会告诉我“BaseCreationForm对象没有属性清理数据”。

但是,出于沮丧和耗尽的想法,我在save()方法中创建用户之前添加了一个简单的“print self”语句,问题消失了,用户正常创建。下面是一些有效的clean()方法,save()方法和一个调用clean()和save()方法的视图片段。

clean()方法正常工作

#example clean methods, both work beautifully
def clean_email(self):
    email = self.cleaned_data["email"]
    if not email:
        raise forms.ValidationError(self.error_messages['no_email'])

    try:
        User.objects.get(email=email)
    except User.DoesNotExist:
        return email
    raise forms.ValidationError(self.error_messages['duplicate_email'])

def clean_password2(self):
    # Check that the two password entries match
    password1 = self.cleaned_data.get("password1")
    password2 = self.cleaned_data.get("password2")
    if password1 and password2 and password1 != password2:
        raise forms.ValidationError(
            self.error_messages['password_mismatch'])
    return password2

save()方法:

 #save method requiring wizardry
 def save(self, commit=True):
    #This line makes it work. When commented, the error appears
    print self
    ###  
    user = User.objects.create_user(
        username=self.cleaned_data.get("username"),
        first_name=self.cleaned_data["first_name"],
        last_name=self.cleaned_data["last_name"],
        email=self.cleaned_data["email"],
        )
    user.set_password(self.cleaned_data["password1"])
    if commit:
        user.save()
    return user

观点(遗漏了一些东西):

class RegistrationView(FormView):
    template_name = 'register.html'
    form_class = BaseCreationForm
    model = UserProfile
    success_url = '/account/login/'

    def form_valid(self, form):
        form                    = BaseCreationForm(self.request.POST,
                                                  self.request.FILES)
        user                    = form.save()
        profile                 = user.get_profile()
        profile.user_type       = form.cleaned_data['user_type']
        profile.title           = form.cleaned_data['title']
        profile.company_name    = form.cleaned_data['company_name']
        .
        .
        .
        profile.save()
        return super(RegistrationView, self).form_valid(form)

1 个答案:

答案 0 :(得分:4)

您不应该在form_valid方法中重新实例化表单。当表单已经有效时调用它,实际上表单将传递给方法。你应该改用它。

(请注意,实际错误是因为您根本没有调用form.is_valid(),但正如我上面所说,您不应该这样做,因为视图已经在执行此操作。)