$urlGen = \OC::$server->getURLGenerator();
$notes = new NoteStorage($urlGen);
$notes->setUsername(\OC_User::getUser());
$urlGen = \OC::$server->getURLGenerator();
$notes = new NoteStorage($urlGen);
$notes->setUsername(\OC_User::getUser());
$res->link = $urlGen->linkToRoute(
'grauphel.gui.note', array('guid' => $row['note_guid'])
);
$res->link = $urlGen->linkToRoute(
'grauphel.gui.note', array('guid' => $row['note_guid'])
);