DRY up guides index page

Use the list of guides available in documents.yaml to fill in the
menu in the index page instead of duplicating the list again. Also,
remove WIP guides from the menu.

1 files changed, 10 insertions, 2 deletions

diff --git a/railties/guides/rails_guides/helpers.rb b/railties/guides/rails_guides/helpers.rb
index 45ad9b9588..e6ef656474 100644
--- a/railties/guides/rails_guides/helpers.rb
+++ b/railties/guides/rails_guides/helpers.rb
@@ -11,15 +11,23 @@ module RailsGuides
       result << content_tag(:dd, capture(&block))
       result
     end
-    
+
     def documents_by_section
       @documents_by_section ||= YAML.load_file(File.expand_path('../../source/documents.yaml', __FILE__))
     end
-    
+
     def documents_flat
       documents_by_section.map {|section| section['documents']}.flatten
     end
 
+    def finished_documents(documents)
+      documents.reject { |document| document['work_in_progress'] }
+    end
+
+    def docs_for_menu(position)
+      position == 'L' ? documents_by_section.to(3) : documents_by_section.from(4)
+    end
+
     def author(name, nick, image = 'credits_pic_blank.gif', &block)
       image = "images/#{image}"