[rygel] core: Make parent_ref a property

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit a8747893a94118ece76ab6605b3819c2caf7be31
Author: Jens Georg <mail jensge org>
Date:   Mon Apr 5 22:05:04 2010 +0200

    core: Make parent_ref a property
    
    This automatically sets parent with parent_ref

 src/rygel/rygel-media-object.vala |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)
---
diff --git a/src/rygel/rygel-media-object.vala b/src/rygel/rygel-media-object.vala
index 01c5881..a026b92 100644
--- a/src/rygel/rygel-media-object.vala
+++ b/src/rygel/rygel-media-object.vala
@@ -41,7 +41,17 @@ public abstract class Rygel.MediaObject : GLib.Object {
     // You must set 'parent' if you set 'parent_ref' but the opposite is not
     // mandatory.
     public unowned MediaContainer parent;
-    public MediaContainer parent_ref;
+    private MediaContainer _parent_ref;
+    public MediaContainer parent_ref {
+        get {
+            return this._parent_ref;
+        }
+
+        set {
+            this.parent = value;
+            this._parent_ref = value;
+        }
+    }
 
     private string _title;
     public string title {