django密码和密码确认验证

Question

我在验证同一表单中的两个字段（密码和密码确认）时遇到了一点问题。

问题是，在使用我创建的方法验证密码后，当我尝试验证密码确认时，我不再有权访问此变量，password = self.cleaned_data['password'] 是'None'。

class NewAccountForm(forms.Form):

password =  forms.CharField(widget=forms.PasswordInput(attrs={'class': 'narrow-input', 'required': 'true' }), required=True, help_text='Password must be 8 characters minimum length (with at least 1 lower case, 1 upper case and 1 number).')
password_confirm = forms.CharField(widget=forms.PasswordInput(attrs={'class': 'narrow-input', 'required': 'true' }), required=True, )

def __init__(self, *args, **kwargs):
    super(NewAccountForm, self).__init__(*args, **kwargs)
    self.fields['password'].label = "Password"
    self.fields['password_confirm'].label = "Password Confirmation"

“密码验证”

def clean_password(self):
    validate_password_strength(self.cleaned_data['password'])

第二次验证未正确执行，因为密码 = 'None'：

def clean_password_confirm(self):
    password = self.cleaned_data['password']
    password_confirm = self.cleaned_data.get('password_confirm')

    print(password)
    print(password_confirm)
    if password and password_confirm:
        if password != password_confirm:
            raise forms.ValidationError("The two password fields must match.")
    return password_confirm

如果字段密码的输入已经通过第一种方法 (clean_password) 进行了验证，是否有办法将字段密码的输入用作第二次验证 (clean_password_confirm) 的变量？

谢谢。

编辑：更新版本：

def clean(self):
    cleaned_data = super(NewAccountForm, self).clean()
    password = cleaned_data.get('password')

    # check for min length
    min_length = 8
    if len(password) < min_length:
        msg = 'Password must be at least %s characters long.' %(str(min_length))
        self.add_error('password', msg)

    # check for digit
    if sum(c.isdigit() for c in password) < 1:
        msg = 'Password must contain at least 1 number.'
        self.add_error('password', msg)

    # check for uppercase letter
    if not any(c.isupper() for c in password):
        msg = 'Password must contain at least 1 uppercase letter.'
        self.add_error('password', msg)

    # check for lowercase letter
    if not any(c.islower() for c in password):
        msg = 'Password must contain at least 1 lowercase letter.'
        self.add_error('password', msg)

    password_confirm = cleaned_data.get('password_confirm')


    if password and password_confirm:
        if password != password_confirm:
            msg = "The two password fields must match."
            self.add_error('password_confirm', msg)
    return cleaned_data

Answer 1

您可以在clean() 方法中测试多个字段。

例子：

def clean(self):
    cleaned_data = super(NewAccountForm, self).clean()

    password = cleaned_data.get('password')
    password_confirm = cleaned_data.get('password_confirm ')

    if password and password_confirm:
        if password != password_confirm:
            raise forms.ValidationError("The two password fields must match.")
    return cleaned_data

请参阅Cleaning and validating fields that depend on each other 上的文档。