add dl helper to get object id

Author: mahenzon

fastapi_jsonapi/data_layers/base.py

@@ -90,6 +90,9 @@ def get_object_id_field(self):
             # TODO: any custom exception type?
             raise Exception(msg)
 
+    def get_object_id(self, obj: TypeModel):
+        return getattr(obj, self.get_object_id_field_name())
+
     async def get_object(self, view_kwargs: dict, qs: Optional[QueryStringManager] = None) -> TypeModel:
         """
         Retrieve an object

fastapi_jsonapi/views/list_view.py

@@ -43,7 +43,7 @@ async def handle_post_resource_list(
     ) -> JSONAPIResultDetailSchema:
         dl: "BaseDataLayer" = await self.get_data_layer_for_list(extra_view_deps)
         created_object = await dl.create_object(data_create=data_create.data, view_kwargs={})
-        created_object_id = getattr(created_object, dl.get_object_id_field_name())
+        created_object_id = dl.get_object_id(created_object)
 
         view_kwargs = {dl.url_id_field: created_object_id}
         db_object = await dl.get_object(view_kwargs=view_kwargs, qs=self.query_params)