public function destroy($id, Responder $responder)
 {
     $item = \App\RExpress\Models\Gallery\GalleryItem::find($id);
     if (!$item->delete()) {
         $responder->fails = true;
         $responder->messages = ['DB', 'Problem deleting record from database'];
         return $responder->json();
     }
     $uploadDir = 'uploads/galleryInstances/' . $item->gallery_instance_id . '/' . $item->filename;
     unlink($uploadDir);
     return $responder->json();
 }