天天红玉世界

# db/migrate/20081115224456_create_posts.rb
class CreatePosts < ActiveRecord::Migration
  def self.up
    create_table :posts do |t|
      t.string :title
      t.text :body
      t.boolean :published      t.timestamps
    end
  end

# config/locales/zh-CN.yml
  # I18n.locale="zh-CN" 
  # I18n.translate 'activerecord.models.post'
  # I18n.translate 'activerecord.attributes'
  # I18n.translate 'activerecord.attributes.post'
  # I18n.translate 'activerecord.attributes.post.title'
zh-CN:
  activerecord:
    models:
      post: 帖子
    attributes:
      post:
        title: 标题
        body: 内容
        published: 发布时间

class String
   def t(locale="zh-CN")
     I18n.t self.to_sym, :locale => locale
   end
end
"hello".t
"hello".t "en"

vi config/environment.rb
config.i18n.default_locale = :"zh-CN"

vi config/environment.rb
   config.i18n.load_path += Dir[File.join("#{RAILS_ROOT}/config/", 'locales', 'admin', '*.{rb,yml}')]

rails 02_i18n_demo && cd 02_i18n_demo
　
vi config/environment.rb
  # config.i18n.load_path << Dir[File.join(RAILS_ROOT, 'my', 'locales', '*.{rb,yml}')]
  # config.i18n.default_locale = :de
  config.i18n.default_locale = :"zh-CN" 
  config.i18n.load_path += Dir[File.join("#{RAILS_ROOT}/config/", 'locales', 'admin', '*.{rb,yml}')]
　
mkdir config/locales/admin
　
vi config/locales/admin/zh-CN.yml
zh-CN:
  # I18n.translate :hello
  hello: "世界，你好！"

localhost:demo gudao$ ./script/console
Loading development environment (Rails 2.2.2)
>> I18n.load_path
=> ["/Library/Ruby/Gems/1.8/gems/activesupport-2.2.2/lib/active_support/locale/en.yml",
 "/Library/Ruby/Gems/1.8/gems/activerecord-2.2.2/lib/active_record/locale/en.yml",
 "/Library/Ruby/Gems/1.8/gems/actionpack-2.2.2/lib/action_view/locale/en.yml", 
"/Users/gudao/Documents/railsspace/open-projects/i18n/demo/config/locales/admin/en.yml",
 "/Users/gudao/Documents/railsspace/open-projects/i18n/demo/config/locales/admin/zh-CN.yml"]
>> I18n.t :hello
=> "世界，你好！" 
>> exit

<% if @issue.new_record? %>
<p><%#= f.select :tracker_id, @project.trackers.collect {|t| [t.name, t.id]}, :required => true %>
<%= f.select :tracker_id, Tracker.all.collect {|t| [t.name, t.id]}, :required => true %></p>