+
+ def assign_account_by_id(%{params: %{"id" => id}} = conn, _) do
+ case Pleroma.User.get_cached_by_id(id) do
+ %Pleroma.User{} = account -> assign(conn, :account, account)
+ nil -> Pleroma.Web.MastodonAPI.FallbackController.call(conn, {:error, :not_found}) |> halt()
+ end
+ end
+
+ def try_render(conn, target, params) when is_binary(target) do
+ case render(conn, target, params) do
+ nil -> render_error(conn, :not_implemented, "Can't display this activity")
+ res -> res
+ end
+ end
+
+ def try_render(conn, _, _) do
+ render_error(conn, :not_implemented, "Can't display this activity")
+ end
+
+ @spec put_if_exist(map(), atom() | String.t(), any) :: map()
+ def put_if_exist(map, _key, nil), do: map
+
+ def put_if_exist(map, key, value), do: Map.put(map, key, value)