Question

我有一个django表单，其中包含一个密码字段，我想验证它必须包含字母和数字组合的字段。

class AuthorizationForm(forms.Form):
    email = forms.CharField()
    password = forms.CharField(min_length=7)

我正在验证密码字段，如下所示：

def clean_password(self):
    password = self.cleaned_data['password']
    if not re.match(r'^[A-Za-z0-9]+$', password):
        raise forms.ValidationError("Password should be a combination of Alphabets and Numbers")

这段代码对我不起作用，它允许abcdefghij或123456789或abcd123456，因为我只想允许abcd123456

Answer 1

您可以使用RegexValidator的{{1}}。

尝试以下代码：

from django.core.validators import RegexValidator

class AuthorizationForm(forms.Form):
    email = forms.CharField()
    password = forms.CharField(min_length=7, validators=[RegexValidator('^(\w+\d+|\d+\w+)+$', message="Password should be a combination of Alphabets and Numbers")])

Answer 2

正则表达式并不是必需的，您可以简单地使用字符串函数来执行此操作：

import string

def validate(password):
    letters = set(string.ascii_letters)
    digits = set(string.digits)
    pwd = set(password)
    return not (pwd.isdisjoint(letters) or pwd.isdisjoint(digits))

print(validate('123123'))    # False
print(validate('asdfsdf'))   # False
print(validate('12312sfdf')) # True

django表单字段正则表达式验证字母数字字符

2 个答案: