[rygel] media-export: Fix Artist view on XBox 360

[Jens Georg <jensgeorg src gnome org>]

commit 18991d9d4d44c331900ac27f216ff64fb5214da2
Author: Jens Georg <mail jensge org>
Date:   Sat May 21 12:12:39 2016 +0200

    media-export: Fix Artist view on XBox 360
    
    Was broken by the introduction of dc:creator with commit 7e2af489c.
    Instead of re-inventing the definitions, just re-use the definitions we use in
    the virtual folder hierarchy
    
    Signed-off-by: Jens Georg <mail jensge org>

 .../rygel-media-export-root-container.vala         |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-root-container.vala 
b/src/plugins/media-export/rygel-media-export-root-container.vala
index 362083b..03aa1ec 100644
--- a/src/plugins/media-export/rygel-media-export-root-container.vala
+++ b/src/plugins/media-export/rygel-media-export-root-container.vala
@@ -258,15 +258,15 @@ public class Rygel.MediaExport.RootContainer : TrackableDbContainer {
             string id = SEARCH_CONTAINER_PREFIX;
             switch (expression.operand2) {
                 case MediaContainer.MUSIC_ALBUM:
-                    id += "upnp:album,?";
+                    id += VIRTUAL_FOLDERS_MUSIC[1].definition;
 
                     break;
                 case MediaContainer.MUSIC_ARTIST:
-                    id += "dc:creator,?,upnp:album,?";
+                    id += VIRTUAL_FOLDERS_MUSIC[0].definition;
 
                     break;
                 case MediaContainer.MUSIC_GENRE:
-                    id += "dc:genre,?";
+                    id += VIRTUAL_FOLDERS_MUSIC[2].definition;
 
                     break;
                 case MediaContainer.PLAYLIST: