Moved wiki page updated_on eager load to a scope and fixed timestamp titles on wiki page index (#7818).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5098 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/application_helper.rb

@@ -1,5 +1,5 @@
 # Redmine - project management software
-# Copyright (C) 2006-2010  Jean-Philippe Lang
+# Copyright (C) 2006-2011  Jean-Philippe Lang
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -194,7 +194,7 @@ module ApplicationHelper
       pages[node].each do |page|
         content << "<li>"
         content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title},
-                           :title => (page.respond_to?(:updated_on) ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
+                           :title => (page.updated_on ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
         content << "\n" + render_page_hierarchy(pages, page.id) if pages[page.id]
         content << "</li>\n"
       end