+ |> validate_actors_match(meta)
+ |> validate_object_nonexistence()
+ end
+
+ def validate_object_nonexistence(cng) do
+ cng
+ |> validate_change(:object, fn :object, object_id ->
+ if Object.get_cached_by_ap_id(object_id) do
+ [{:object, "The object to create already exists"}]
+ else
+ []
+ end
+ end)
+ end
+
+ def validate_actors_match(cng, meta) do
+ object_actor = meta[:object_data]["actor"]
+
+ cng
+ |> validate_change(:actor, fn :actor, actor ->
+ if actor == object_actor do
+ []
+ else
+ [{:actor, "Actor doesn't match with object actor"}]
+ end
+ end)