serializers.py 文件源码

def data(self):
        """
        Returns the serialized data on the serializer.
        """
        if self._data is None:
            obj = self.object

            if self.many is not None:
                many = self.many
            else:
                many = hasattr(obj, '__iter__') and not isinstance(obj, (Page, dict))
                if many:
                    raise AssertionError('Implicit list/queryset serialization is deprecated. '
                                         'Use the `many=True` flag when instantiating the serializer.')

            if many:
                self._data = [self.to_native(item) for item in obj]
            else:
                self._data = self.to_native(obj)

        return self._data

    # noinspection PyMethodMayBeStatic