added user id to upload

src/Controller/UploadController.php

@@ -68,6 +68,7 @@ class UploadController extends AbstractController
                                 }
 
                                 // set meta data
+                                $song->setUploader($this->getUser()->getId());
                                 $song->setTitle($trackInfo->title);
                                 $song->setSubtitle($trackInfo->subtitle);
                                 $song->setArtist($trackInfo->artistName);