test

gistfile1.py

class StringField(BaseField):
    """A unicode string field.
    """

    def __init__(self, regex=None, max_length=None, min_length=None, **kwargs):
        self.regex = re.compile(regex) if regex else None
        self.max_length = max_length
        self.min_length = min_length
        super(StringField, self).__init__(**kwargs)

    def to_python(self, value):
        return unicode(value)

    def validate(self, value):
        assert isinstance(value, (str, unicode))

        if self.max_length is not None and len(value) > self.max_length:
            raise ValidationError('String value is too long')

        if self.min_length is not None and len(value) < self.min_length:
            raise ValidationError('String value is too short')

        if self.regex is not None and self.regex.match(value) is None:
            message = 'String value did not match validation regex'
            raise ValidationError(message)