[rygel] core: Only query parent once

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 01756fdde4cfa0d286cf2fd3260c9808b55591c8
Author: Jens Georg <mail jensge org>
Date:   Wed Sep 30 13:50:11 2009 +0200

    core: Only query parent once
    
    The parent node was queried for each child which was totally useless.
    Code now at least twice as fast

 src/rygel/rygel-media-db.vala |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/src/rygel/rygel-media-db.vala b/src/rygel/rygel-media-db.vala
index 05d9cdf..670c6c1 100644
--- a/src/rygel/rygel-media-db.vala
+++ b/src/rygel/rygel-media-db.vala
@@ -882,8 +882,8 @@ public class Rygel.MediaDB : Object {
                                                       long offset,
                                                       long max_count) {
         Statement statement;
-        Gee.ArrayList<MediaObject> children =
-                                            new Gee.ArrayList<MediaObject> ();
+        ArrayList<MediaObject> children = new ArrayList<MediaObject> ();
+        var parent = (MediaContainer) get_object (container_id);
         var rc = db.prepare_v2 (GET_CHILDREN_STRING,
                                 -1,
                                 out statement,
@@ -897,11 +897,11 @@ public class Rygel.MediaDB : Object {
             while ((rc = statement.step ()) == Sqlite.ROW) {
                 var child_id = statement.column_text (17);
                 try {
-                    var parent = get_object (statement.column_text (18));
-                    children.add (get_object_from_statement
-                    ((MediaContainer)parent, child_id, statement));
-                    children[children.size - 1].parent = (MediaContainer)parent;
-                    children[children.size - 1].parent_ref = (MediaContainer)parent;
+                    children.add (get_object_from_statement (parent,
+                                                             child_id,
+                                                             statement));
+                    children[children.size - 1].parent = parent;
+                    children[children.size - 1].parent_ref = parent;
                 } catch (MediaDBError err) {
                     warning ("Could not get parent object: %s", err.message);
                 }