[rygel] tracker: Handle 'all children' search

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 6239308cc10fabccebe1a2c4ae5511fb73e97a7d
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Thu Nov 12 16:04:20 2009 +0200

    tracker: Handle 'all children' search
    
    Handle 'give me all your direct children' search.

 .../tracker/rygel-tracker-search-container.vala    |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/tracker/rygel-tracker-search-container.vala b/src/plugins/tracker/rygel-tracker-search-container.vala
index be7cff3..1f4b1f5 100644
--- a/src/plugins/tracker/rygel-tracker-search-container.vala
+++ b/src/plugins/tracker/rygel-tracker-search-container.vala
@@ -246,6 +246,15 @@ public class Rygel.TrackerSearchContainer : Rygel.MediaContainer {
                                 "</rdfq:Condition>";
                     }
                 }
+            } else if (rel_expression.operand1 == "@parentID" &&
+                       rel_expression.operand2 == this.id) {
+                if (this.query_condition != "") {
+                    query = "<rdfq:Condition>\n" +
+                                this.query_condition +
+                            "</rdfq:Condition>";
+                } else {
+                    query = "";
+                }
             }
         }