let page model support i18n

app/controllers/application_controller.rb

@@ -3,6 +3,8 @@ class ApplicationController < ActionController::Base
   helper :all
   protect_from_forgery
 
+  before_filter :set_locale
+  
   filter_parameter_logging :password
   
   Liquid::Template.register_filter(SnippetFilter)
@@ -11,7 +13,7 @@ class ApplicationController < ActionController::Base
     if @page
       @layout = @page.layout
       @page_options ||= {}
-      @page_content = Liquid::Template.parse(@page.content).render(@page_options)
+      @page_content = Liquid::Template.parse( @page.read_attribute( "content_#{I18n.locale}" ) ).render(@page_options)
       @layout_content = (@page.layout)? @layout.content : "{{page_content}}"
       render :text => Liquid::Template.parse(@layout_content).render( 'page_content' => @page_content )
     else
@@ -19,4 +21,14 @@ class ApplicationController < ActionController::Base
     end
   end
   
+  def set_locale
+    # update session if passed
+    if params[:locale] && VALID_LOCALES.include?( params[:locale] )
+      session[:locale] = params[:locale]
+    end
+    
+    # set locale based on session or default
+    I18n.locale = session[:locale] || I18n.default_locale
+  end
+    
 end

app/models/page.rb

@@ -1,8 +1,14 @@
 class Page < CouchFoo::Base
   
+   property :lang, String
    property :name, String
    property :parent_page_id, String
-   property :content, String
+   
+   property :content_zh_tw, String
+   property :content_en, String
+   property :content_ja, String
+   # TODO: more language can dynamic added
+   
    property :layout_id, String
    property :layout_name, String
    property :use_engine, String

app/views/admin/pages/_form.html.erb

@@ -9,8 +9,13 @@
 </p>
 
 <p>
-<%= f.label :content, "Content" %>
+<%= f.label "content_en", "Content (en)" %>
-<%= f.text_area :content, :size => '100x30' %>
+<%= f.text_area "content_en", :size => '100x30' %>
+</p>
+
+<p>
+<%= f.label "content_zh_tw", "Content (zh_tw)" %>
+<%= f.text_area "content_zh_tw", :size => '100x30' %>
 </p>
 
 <p>

config/environment.rb

@@ -37,9 +37,10 @@ Rails::Initializer.run do |config|
   
   # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
   # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}')]
-  # config.i18n.default_locale = :de
+  config.i18n.default_locale = "zh_tw"
   
 end
 
+VALID_LOCALES = ["en", "zh_tw"]
 require 'couch_foo'
 CouchFoo::Base.set_database(:host => "http://localhost:5984", :database => "r4")