resources.py 文件源码

def put_detail(self, request, **kwargs):
        """
        Either updates an existing resource or creates a new one with the
        provided data.

        Calls ``obj_update`` with the provided data first, but falls back to
        ``obj_create`` if the object does not already exist.

        If a new resource is created, return ``HttpCreated`` (201 Created).
        If ``Meta.always_return_data = True``, there will be a populated body
        of serialized data.

        If an existing resource is modified and
        ``Meta.always_return_data = False`` (default), return ``HttpNoContent``
        (204 No Content).
        If an existing resource is modified and
        ``Meta.always_return_data = True``, return ``HttpAccepted`` (200
        OK).
        """
        if django.VERSION >= (1, 4):
            body = request.body
        else:
            body = request.raw_post_data
        deserialized = self.deserialize(request, body, format=request.META.get('CONTENT_TYPE', 'application/json'))
        deserialized = self.alter_deserialized_detail_data(request, deserialized)
        bundle = self.build_bundle(data=dict_strip_unicode_keys(deserialized), request=request)

        try:
            updated_bundle = self.obj_update(bundle=bundle, **self.remove_api_resource_names(kwargs))

            if not self._meta.always_return_data:
                return http.HttpNoContent()
            else:
                updated_bundle = self.full_dehydrate(updated_bundle)
                updated_bundle = self.alter_detail_data_to_serialize(request, updated_bundle)
                return self.create_response(request, updated_bundle)
        except (NotFound, MultipleObjectsReturned):
            updated_bundle = self.obj_create(bundle=bundle, **self.remove_api_resource_names(kwargs))
            location = self.get_resource_uri(updated_bundle)

            if not self._meta.always_return_data:
                return http.HttpCreated(location=location)
            else:
                updated_bundle = self.full_dehydrate(updated_bundle)
                updated_bundle = self.alter_detail_data_to_serialize(request, updated_bundle)
                return self.create_response(request, updated_bundle, response_class=http.HttpCreated, location=location)