Question

class RegisterForm(forms.Form):
    username = forms.CharField(max_length=16, label="Username", required=False)
    password = forms.CharField(max_length=100,widget=forms.PasswordInput, required=False)
    password2 = forms.CharField(max_length=100,widget=forms.PasswordInput, label="Password Again", required=False)
    fullname = forms.CharField(max_length = 100, required=False)
    email = forms.EmailField(max_length=100, required=False)
    def clean_fullname(self):
        if len(self.cleaned_data['fullname']) < 4:
            raise forms.ValidationError("Enter your full name.")
    def clean_email(self):
        if self.cleaned_data['email'].find("@") <= 0:
            raise forms.ValidationError("Enter a valid email address.")
    def clean_username(self):
        if not self.cleaned_data['username']:
            raise forms.ValidationError("Enter a username.")
        try:
            u = User.objects.get(username = self.cleaned_data['username'])
            if u:
                raise forms.ValidationError("Username is taken.")
        except:
            pass
    def clean_password(self):
        if not self.cleaned_data['password']:
            raise forms.ValidationError("Enter a password.")
    def clean_password2(self):
        if not self.cleaned_data['password2']:
            raise forms.ValidationError("Enter your password (again)")

    def clean(self):
        cleaned_data = self.cleaned_data
        password = cleaned_data['password']  <<< There is a key error here anytime I submit a form.
        password2 = cleaned_data['password2']
        if password and password2:
            if password != password2:
                raise forms.ValidationError("Your passwords do not match.")
        return cleaned_data

p assword = cleaned_data['password']

上有一个关键错误

Answer 1

简短的字面答案是self.cleaned_data是一个没有“密码”作为键的条目的字典。进入下一阶段：

您是否尝试过检查self.cleaned_data？是仅缺少password条目还是空白？你在表格上输入了密码吗？如果没有在表单中输入任何内容，您对self.cleaned_data的期望是什么？你的期望是什么基础？

我认为相当怀疑一个名为“clean”的动作动词的方法开始处理名为“cleaning_data”而不是“raw_data”或“uncleaned_data”或“unclean_data”或“not_known_to_be_clean_data”的属性......这是你的想法还是只是Django怪异？

Answer 2

原因是你的clean_password函数没有返回任何内容。你的clean_password2

也没有

这是验证的顺序：

clean_fieldnames
清洁

clean_password和clean_password2需要在有效时返回值。

def clean_password(self):
    if not self.cleaned_data['password']:
        raise forms.ValidationError("Enter a password.")
    return self.cleaned_data['password']

def clean_password2(self):
    if not self.cleaned_data['password2']:
        raise forms.ValidationError("Enter your password (again)")
    return self.cleaned_data['password2']

虽然推荐的格式可以保存一些按键（特别是在更长的验证时）......

def clean_password2(self):
    data = self.cleaned_data['password2']
        raise forms.ValidationError("Enter your password (again)")
    return data

为什么我的Django表单代码中存在一个关键错误？

2 个答案: