Question

我只是创建并形成让人们注册 forms.py就在这里

from django import forms
from django.conf import settings
from django.contrib.auth import get_user_model



def lowercase_email(email):
        """
        Normalize the address by lowercasing the domain part of the email
        address.
        """
        email = email or ''
        try:
            email_name, domain_part = email.strip().rsplit('@', 1)
        except ValueError:
            pass
        else:
            email = '@'.join([email_name.lower(), domain_part.lower()])
        return email

class SignupForm (forms.ModelForm):

    username =forms.CharField( 
        label='username',required=True,max_length=20,min_length=3)
    email = forms.EmailField( 
        label='email',required=True)
    password =forms.CharField( 
        label='password',required=True,max_length=20,min_length=6)
    confirm_password= forms.CharField(
        label='confirm_password',required=True,max_length=20,min_length=6)

    class Meta:
        model = get_user_model()
        fields = ("username","email","password",)


    def clean_email(self):
        UserModel = get_user_model()
        email=self.cleaned_data["email"]
        lower_email=lowercase_email(email)
        try:
            UserModel._default_manager.get(email=lower_email)
        except UserModel.DoesNotExist:
            return lower_email
        raise forms.ValidationError("this email is already used ")

    def clean_password(self):

        password = self.cleaned_data["password"]
        confirm_password = self.cleaned_data["confirm_password"]
        if  password != confirm_password:
            raise forms.ValidationError("password not same")
        return password

这不行，它显示

KeyError at /accounts/signup/
'confirm_password'
Request Method: POST
Request URL:    http://localhost:8000/accounts/signup/
Django Version: 1.6
Exception Type: KeyError
Exception Value:    
'confirm_password'
Exception Location: C:\pro1\mysns\sns\accounts\forms.py in clean_password, line 50
Python Executable:  C:\Python33\python.exe

好了，现在我只需将密码清除方法更改为 def clean_confirm_password（self）现在它起作用了，

def clean_confirm_password(self):

            password = self.cleaned_data["password"]
            confirm_password = self.cleaned_data["confirm_password"]
            if  password != confirm_password:
                raise forms.ValidationError("password not same")
            return confirm_password

任何人都可以告诉我为什么？感谢

Answer 1

您应该使用clean方法检查它们，然后您可以从form.cleaned_data获取它们。

或者将clean_password方法更改为：

def clean_password(self):
    # use data instead of cleaned_data
    password = self.data["password"]
    confirm_password = self.data["confirm_password"]
    if  password != confirm_password:
        raise forms.ValidationError("password not same")
    return confirm_password

clean_xxx方法按字段声明的顺序调用，password在confirm_password之前调用，因此在调用clean_password时，form.cleaned_data['confirm_password']尚未设置

django validationerror密码字段错误

1 个答案: