fields.py 文件源码

def to_native(self, value):
        """
        Converts the field's value into it's simple representation.
        """
        if is_simple_callable(value):
            value = value()

        if is_protected_type(value):
            return value
        elif is_non_str_iterable(value) and not isinstance(value, (dict, six.string_types)):
            return [self.to_native(item) for item in value]
        elif isinstance(value, dict):
            # Make sure we preserve field ordering, if it exists
            ret = collections.OrderedDict()
            for key, val in value.items():
                ret[key] = self.to_native(val)
            return ret

        return force_text(value)