From 5281464af47abfef4bfb0abc3be0c9331a67ada9 Mon Sep 17 00:00:00 2001
From: Christophe Vilayphiou <chris.vilayphiou@gmail.com>
Date: Sat, 11 Aug 2012 16:56:28 +0800
Subject: [PATCH] Fix bug for sorting when there's only one category with
 elements

---
 app/controllers/orbit_backend_controller.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/controllers/orbit_backend_controller.rb b/app/controllers/orbit_backend_controller.rb
index 6bc42ec9..b43a6b9a 100644
--- a/app/controllers/orbit_backend_controller.rb
+++ b/app/controllers/orbit_backend_controller.rb
@@ -103,7 +103,7 @@ class OrbitBackendController< ApplicationController
     referenced_objects = object_class.find(referer_ids) rescue nil
     if referenced_objects
       a = Array.new 
-      referenced_objects.each { |referer| a << [get_string_value_from_object(referer), referer.id] }
+      referenced_objects.to_a.each { |referer| a << [get_string_value_from_object(referer), referer.id] }
       sorted = params[:direction].eql?('asc') ? a.sort : a.sort.reverse!
       sorted_objects = sorted.collect {|x| objects.where(option => x[1]).entries }
       sorted_objects.flatten!