django form组件自定义验证

1.自定义正则表达式

password = django_fields.RegexField(
        '^(?=.*[0-9])(?=.*[a-zA-Z])(?=.*[!@#$\%^&*()])[0-9a-zA-Z!@#$\%^&*()]{8,32}$',
        min_length=12,
        max_length=32,
        error_messages={'required': '密码不能为空.',
                        'invalid': '密码必须包含数字，字母、特殊字符',
                        'min_length': "密码长度不能小于8个字符",
                        'max_length': "密码长度不能大于32个字符"}
    )

2.clean_%s

    def clean_email(self):
        if 'email' in self.cleaned_data:
            if models.UserInfo.objects.filter(email=self.cleaned_data['email']) is None:
                raise ValidationError(message='邮箱已经存在')

在类中自定义以clean_%s的方法（以上是验证邮箱是否已经存在）

3.clean

    def clean(self):

        if 'password' in self.cleaned_data and 'confirm_pwd' in self.cleaned_data:
            v1 = self.cleaned_data['password']
            v2 = self.cleaned_data['confirm_pwd']
            print(v1,v2)
            if v1 == v2:
                pass
            else:
                from django.core.exceptions import ValidationError
                raise ValidationError('密码输入不一致')
        else:
            print('格式错误')

联合验证，错误信息在form.errors["__all__"]，templates中{{ result.form.non_field_errors.0}}