Validator 字段验证

class UserRegSerializer(serializers.ModelSerializer):
    """
    用户注册
    """
    # 验证用户名是否存在
    username = serializers.CharField(label=‘用户名‘, help_text=‘用户名‘, required=True, allow_blank=True,
                                     validators=[UniqueValidator(User.objects.all(), message=‘用户已存在‘)])

    class Meta:
        model = User
        fields = [‘username‘, ‘phone‘, ‘password‘]

def phone_validate(value):
    """
    验证手机号
    :param value: 手机号
    :return: 手机号/错误信息
    """
    if not re.match(REGEX_PHONE, value):
        raise serializers.ValidationError(‘手机号不合法‘)
    else:
        return value


def password_validate(value):
    """
    验证密码
    :param value: 密码
    :return: 密码/错误信息
    """
    if len(value) < 6:
        raise serializers.ValidationError(‘密码不能少于6位数‘)
    else:
        return value


class UserRegSerializer(serializers.ModelSerializer):
    """
    用户注册
    """

    # 验证用户名是否存在
    username = serializers.CharField(label=‘用户名‘, help_text=‘用户名‘, required=True, allow_blank=True,
                                     validators=[UniqueValidator(User.objects.all(), message=‘用户已存在‘)])
    # 验证手机号是否合法
    phone = serializers.CharField(label=‘手机号‘, help_text=‘手机号‘, required=True, allow_blank=True,
                                  validators=[phone_validate,])
    # 验证密码是否大于6位
    password = serializers.CharField(label=‘密码‘, help_text=‘密码‘, required=True, allow_blank=True,
                                  validators=[password_validate, ])

    class Meta:
        model = User
        fields = [‘username‘, ‘phone‘, ‘password‘]