[rygel] media-export: Allow removal of children

[Jens Georg <jensgeorg src gnome org>]

commit 206e7491026f2157c050b71bbc80c29ca9d6099c
Author: Jens Georg <jensg openismus com>
Date:   Mon Jun 10 22:29:36 2013 +0200

    media-export: Allow removal of children
    
    There's no "RemoveReference", so PlaylistContainer needs to allow and
    support DestroyObject

 .../rygel-media-export-playlist-container.vala     |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/media-export/rygel-media-export-playlist-container.vala 
b/src/plugins/media-export/rygel-media-export-playlist-container.vala
index 9c89b44..d243ec1 100644
--- a/src/plugins/media-export/rygel-media-export-playlist-container.vala
+++ b/src/plugins/media-export/rygel-media-export-playlist-container.vala
@@ -85,9 +85,8 @@ internal class Rygel.MediaExport.PlaylistContainer : DBContainer,
     public async void remove_item (string id,
                                    Cancellable?    cancellable)
                                    throws Error {
-        throw new WritableContainerError.NOT_IMPLEMENTED
-                                        (_("Can't remove items in %s"),
-                                         this.id);
+        this.media_db.remove_by_id (id);
+        this.updated ();
     }
 
     public async void add_container (Rygel.MediaContainer container,