[rygel] tracker: Create ID from title rather then the value

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 187cae3b971f7b6180d20aa40f88ea487c7dfc41
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Aug 18 15:06:40 2010 +0300

    tracker: Create ID from title rather then the value
    
    Create ID of MetadataValues' children from their title rather then the
    associated 'value' of the child. This also implies that Years container
    now only provide the method for title creation rather than ID creation.
    
    With this change, the 'Year' hierarchy works again. \o/

 .../tracker/rygel-tracker-metadata-values.vala     |    9 ++++-----
 src/plugins/tracker/rygel-tracker-years.vala       |    4 ++--
 2 files changed, 6 insertions(+), 7 deletions(-)
---
diff --git a/src/plugins/tracker/rygel-tracker-metadata-values.vala b/src/plugins/tracker/rygel-tracker-metadata-values.vala
index 49309ee..aa2dc74 100644
--- a/src/plugins/tracker/rygel-tracker-metadata-values.vala
+++ b/src/plugins/tracker/rygel-tracker-metadata-values.vala
@@ -125,13 +125,12 @@ public abstract class Rygel.Tracker.MetadataValues : Rygel.SimpleContainer {
                 continue;
             }
 
-            var id = this.create_id_for_value (value);
+            var title = this.create_title_for_value (value);
+            var id = this.create_id_for_title (title);
             if (!this.is_child_id_unique (id)) {
                 continue;
             }
 
-            var title = this.create_title_for_value (value);
-
             // The child container can use the same triplets we used in our
             // query.
             var child_triplets = new QueryTriplets.clone (triplets);
@@ -164,8 +163,8 @@ public abstract class Rygel.Tracker.MetadataValues : Rygel.SimpleContainer {
         }
     }
 
-    protected virtual string create_id_for_value (string value) {
-        return this.id + ":" + value;
+    protected virtual string create_id_for_title (string title) {
+        return this.id + ":" + title;
     }
 
     protected virtual string create_title_for_value (string value) {
diff --git a/src/plugins/tracker/rygel-tracker-years.vala b/src/plugins/tracker/rygel-tracker-years.vala
index 666a681..d9ef9f5 100644
--- a/src/plugins/tracker/rygel-tracker-years.vala
+++ b/src/plugins/tracker/rygel-tracker-years.vala
@@ -37,12 +37,12 @@ public class Rygel.Tracker.Years : MetadataValues {
               KEY_CHAIN);
     }
 
-    protected override string create_id_for_value (string value) {
+    protected override string create_title_for_value (string value) {
         return value.ndup (4);
     }
 
     protected override string create_filter (string variable, string value) {
-        var year = this.create_id_for_value (value);
+        var year = this.create_title_for_value (value);
         var next_year = (year.to_int () + 1).to_string ();
 
         year += "-01-01T00:00:00Z";