Add MongoMapper key_i18n support

app/models/announcement.rb

@@ -2,21 +2,11 @@ class Announcement
   
    include MongoMapper::Document
    
-   key :title_en, String
-   key :title_zh_tw, String
-   key :content_en, String
-   key :content_zh_tw, String
+   key_i18n :title, String
+   key_i18n :content, String
    
    def to_liquid
-     { "id" => self.id, "title" => self.send("title_#{I18n.locale}"), "content" => self.send("content_#{I18n.locale}") }
-   end
-    
-   def title
-     self.send("title_#{I18n.locale}")
-   end
-    
-   def content
-     self.send("content_#{I18n.locale}")
+     { "id" => self.id, "title" => self.title, "content" => self.content }
    end
    
 end

app/models/layout.rb

@@ -3,8 +3,7 @@ class Layout
    include MongoMapper::Document
    
    key :name, String
-   key :content_en, String
-   key :content_zh_tw, String
+   key_i18n :content, String
    
    validates_presence_of :name
    

app/models/page.rb

@@ -3,9 +3,8 @@ class Page
   
    key :name, String
    key :parent_page_id, String
-   
-   key :content_en, String
-   key :content_zh_tw, String
+ 
+   key_i18n :content, String
     
    key :layout_id, String
    key :layout_name, String

app/models/snippet.rb

@@ -3,8 +3,7 @@ class Snippet
    include MongoMapper::Document
   
    key :name, String
-   key :content_en, String
-   key :content_zh_tw, String
+   key_i18n :content, String
     
    validates_presence_of :name
    

app/models/snippet_filter.rb

@@ -4,7 +4,7 @@ module SnippetFilter
     snippet = Snippet.find_by_name(snippet_name)
     
     if snippet
-      return Liquid::Template.parse( snippet.send( "content_#{I18n.locale}" ) ).render
+      return Liquid::Template.parse( snippet.content ).render
     else
       return "nothing"
     end