[rygel] media-export: Move some code into a helper.

[Murray Cumming <murrayc src gnome org>]

commit 7ac6fbb25af2d99a33f2faefbb7a410c0f7483ad
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Jan 18 11:20:53 2013 +0100

    media-export: Move some code into a helper.

 .../rygel-media-export-root-container.vala         |   19 ++++++++++---------
 1 files changed, 10 insertions(+), 9 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 2cbe581..398a3c8 100644
--- a/src/plugins/media-export/rygel-media-export-root-container.vala
+++ b/src/plugins/media-export/rygel-media-export-root-container.vala
@@ -433,9 +433,16 @@ public class Rygel.MediaExport.RootContainer : TrackableDbContainer {
             }
         }
 
-        // Signal that the container has been updated with new/changed content.
+        root_updated ();
+    }
+
+    // Signal that the container has been updated with new/changed content.
+    private void root_updated () {
+
         this.updated ();
 
+        // Persist the container_update_id value that was generated by
+        // the call to updated ().
         try {
             this.media_db.save_container (this);
         } catch (Error error) { }
@@ -452,17 +459,11 @@ public class Rygel.MediaExport.RootContainer : TrackableDbContainer {
         // also add the virtual folders:
         this.add_default_virtual_folders ();
 
-        this.updated ();
-        try {
-            this.media_db.save_container (this);
-        } catch (Error error) { }
+        root_updated ();
 
         this.filesystem_container.container_updated.connect( () => {
             this.add_default_virtual_folders ();
-            this.updated ();
-            try {
-                this.media_db.save_container (this);
-            } catch (Error error) { }
+            root_updated ();
         });
     }