a non optimized solution to fix problems with localized boolean and category custom types

Gemfile

@@ -11,6 +11,7 @@ gem 'devise', '1.3.4'
 gem 'devise_bushido_authenticatable', '1.0.0.alpha10', :require => 'devise_cas_authenticatable'
 
 gem 'mongoid', '~> 2.0.2'
+gem 'mongoid_i18n', :require => 'mongoid/i18n'
 gem 'bson_ext', '~> 1.3.0'
 gem 'locomotive_mongoid_acts_as_tree', '0.1.5.7', :require => 'mongoid_acts_as_tree'
 gem 'will_paginate', '~> 3.0.0'

Gemfile.lock

@@ -173,6 +173,9 @@ GEM
       activemodel (~> 3.0)
       mongo (~> 1.3)
       tzinfo (~> 0.3.22)
+    mongoid_i18n (0.3.1)
+      bson_ext
+      mongoid (>= 2.0.0)
     net-ssh (2.1.4)
     nokogiri (1.5.0)
     open4 (1.1.0)
@@ -316,6 +319,7 @@ DEPENDENCIES
   mimetype-fu
   mocha (= 0.9.12)
   mongoid (~> 2.0.2)
+  mongoid_i18n
   pickle
   rack-cache
   rails (= 3.0.10)

app/cells/admin/site_locale_picker/show.html.haml

@@ -0,0 +1,11 @@
+#site-locale-picker
+  %span.hand
+     
+
+  %ul
+    - @locales.each_with_index do |locale, index|
+      %li{ :class => "#{'first' if index == 0}" }
+
+        = image_tag "admin/icons/flags/#{locale}.png", :class => 'flag'
+
+        %span.text= locale

app/cells/admin/site_locale_picker_cell.rb

@@ -0,0 +1,15 @@
+class Admin::SiteLocalePickerCell < Cell::Base
+
+  def show(args)
+    site    = args[:site]
+    locale  = args[:locale].to_s
+
+    if site.locales.empty? || site.locales.size < 2
+      ''
+    else
+      @locales = [locale] + (site.locales - [locale])
+      render
+    end
+  end
+
+end

app/controllers/admin/base_controller.rb

@@ -15,6 +15,8 @@ module Admin
 
     before_filter :set_locale
 
+    before_filter :set_site_locale
+
     helper_method :sections, :current_site_url, :site_url, :page_url, :current_ability
 
     # https://rails.lighthouseapp.com/projects/8994/tickets/1905-apphelpers-within-plugin-not-being-mixed-in
@@ -71,7 +73,25 @@ module Admin
     end
 
     def set_locale
-      I18n.locale = current_admin.locale rescue Locomotive.config.default_locale
+      I18n.locale = current_admin.locale rescue Locomotive.config.default_locale # for the back-office
+    end
+
+    def set_site_locale
+      I18n.default_site_locale = current_site.default_locale
+
+      if params[:site_locale].present?
+        session[:site_locale] = params[:site_locale]
+      end
+
+      unless current_site.locales.include?(session[:site_locale])
+        session[:site_locale] = current_site.default_locale
+      end
+
+      I18n.site_locale = session[:site_locale]
+    end
+
+    def back_to_default_site_locale
+      session[:site_locale] = I18n.site_locale = current_site.default_locale
     end
 
     # ___ site/page urls builder ___

app/controllers/admin/contents_controller.rb

@@ -11,6 +11,8 @@ module Admin
 
     before_filter :authorize_content
 
+    before_filter :back_to_default_site_locale, :only => %w(new create)
+
     helper_method :breadcrumb_root, :breadcrumb_url, :back_url
 
     def index

app/controllers/admin/pages_controller.rb

@@ -5,6 +5,8 @@ module Admin
 
     respond_to :json, :only => [:update, :sort, :get_path]
 
+    before_filter :back_to_default_site_locale, :only => %w(new create)
+
     def index
       @pages = current_site.all_pages_in_once
     end

app/helpers/admin/sites_helper.rb

@@ -30,4 +30,7 @@ module Admin::SitesHelper
     Locomotive.config.multi_sites?
   end
 
+  def ordered_site_locales(site)
+    site.locales + (Locomotive.config.site_locales - site.locales)
+  end
 end

app/models/content_instance.rb

@@ -2,12 +2,15 @@ class ContentInstance
 
   include Mongoid::Document
   include Mongoid::Timestamps
+  include Mongoid::I18n
 
   ## extensions ##
   include CustomFields::ProxyClassEnabler
   include Extensions::Shared::Seo
 
   ## fields (dynamic fields) ##
+  localized_fields :_position_in_list, /^custom_field_/
+
   field :_slug
   field :_position_in_list, :type => Integer, :default => 0
   field :_visible, :type => Boolean, :default => true

app/models/editable_element.rb

@@ -1,27 +1,28 @@
 class EditableElement
 
-    include Mongoid::Document
+  include Mongoid::Document
+  include Mongoid::I18n
 
-    ## fields ##
-    field :slug
-    field :block
-    field :default_content
-    field :default_attribute
-    field :hint
-    field :priority,    :type => Integer, :default => 0
-    field :disabled,    :type => Boolean, :default => false
-    field :assignable,  :type => Boolean, :default => true
-    field :from_parent, :type => Boolean, :default => false
+  ## fields ##
+  field :slug
+  field :block
+  localized_field :default_content
+  field :default_attribute
+  field :hint
+  field :priority,    :type => Integer, :default => 0
+  field :disabled,    :type => Boolean, :default => false
+  field :assignable,  :type => Boolean, :default => true
+  field :from_parent, :type => Boolean, :default => false
 
-    ## associations ##
-    embedded_in :page, :inverse_of => :editable_elements
+  ## associations ##
+  embedded_in :page, :inverse_of => :editable_elements
 
-    ## validations ##
-    validates_presence_of :slug
+  ## validations ##
+  validates_presence_of :slug
 
-    ## scopes ##
-    scope :by_priority, :order_by => [[:priority, :desc]]
+  ## scopes ##
+  scope :by_priority, :order_by => [[:priority, :desc]]
 
-    ## methods ##
+  ## methods ##
 
 end

app/models/editable_file.rb

@@ -1,7 +1,11 @@
 class EditableFile < EditableElement
 
+  localized_fields :source_filename
+
   mount_uploader :source, EditableFileUploader
 
+  # localized_field :source
+
   def content
     self.source? ? self.source.url : self.default_content
   end

app/models/editable_short_text.rb

@@ -1,12 +1,19 @@
 class EditableShortText < EditableElement
 
   ## fields ##
-  field :content
+  localized_field :content
 
   ## methods ##
 
-  def content
-    self.read_attribute(:content).blank? ? self.default_content : self.read_attribute(:content)
+  # def content
+  #   self.read_attribute(:content).blank? ? self.default_content : self.read_attribute(:content)
+  # end
+
+  def content_with_localization
+    value = self.content_without_localization
+    value.blank? ? self.default_content : value
   end
 
+  alias_method_chain :content, :localization
+
 end

app/models/extensions/page/parse.rb

@@ -5,9 +5,9 @@ module Extensions
       extend ActiveSupport::Concern
 
       included do
-        field :serialized_template, :type => Binary
-        field :template_dependencies, :type => Array, :default => []
-        field :snippet_dependencies, :type => Array, :default => []
+        localized_field :serialized_template, :type => Binary
+        localized_field :template_dependencies, :type => Array, :default => []
+        localized_field :snippet_dependencies, :type => Array, :default => []
 
         attr_reader :template_changed
 
@@ -22,7 +22,7 @@ module Extensions
       module InstanceMethods
 
         def template
-          @template ||= Marshal.load(read_attribute(:serialized_template).to_s) rescue nil
+          @template ||= Marshal.load(self.serialized_template.to_s) rescue nil
         end
 
         protected

app/models/extensions/shared/seo.rb

@@ -4,9 +4,9 @@ module Extensions
       extend ActiveSupport::Concern
 
       included do
-        field :seo_title, :type => String
-        field :meta_keywords, :type => String
-        field :meta_description, :type => String
+        localized_field :seo_title
+        localized_field :meta_keywords
+        localized_field :meta_description
       end
 
     end # Seo

app/models/extensions/site/i18n.rb

@@ -0,0 +1,51 @@
+module Extensions
+  module Site
+    module I18n
+
+      extend ActiveSupport::Concern
+
+      included do
+
+        ## fields ##
+        field :locales, :type => Array, :default => []
+
+        ## callbacks ##
+        after_validation :add_missing_locales_for_all_pages
+
+      end
+
+      module InstanceMethods
+
+        def locales=(array)
+          array = [] if array.blank?; super(array)
+        end
+
+        def default_locale
+          self.locales.first || Locomotive.config.site_locales.first
+        end
+
+        protected
+
+        def add_missing_locales_for_all_pages
+          if self.locales_changed?
+            list = self.pages.to_a
+
+            while !list.empty? do
+              page = list.pop
+              begin
+                page.send(:set_slug_and_fullpath_for_all_locales, self.locales)
+
+                page.save
+
+              rescue TypeError => e
+                list.insert(0, page)
+              end
+            end
+          end
+        end
+
+      end
+
+    end
+  end
+end

app/models/page.rb

@@ -1,6 +1,7 @@
 class Page
 
   include Locomotive::Mongoid::Document
+  include Mongoid::I18n
 
   ## Extensions ##
   include Extensions::Page::Tree
@@ -13,10 +14,10 @@ class Page
   include Extensions::Shared::Seo
 
   ## fields ##
-  field :title
-  field :slug
-  field :fullpath
-  field :raw_template
+  localized_field :title
+  localized_field :slug
+  localized_field :fullpath
+  localized_field :raw_template
   field :published, :type => Boolean, :default => false
   field :cache_strategy, :default => 'none'
 
@@ -32,6 +33,7 @@ class Page
   after_initialize :set_default_raw_template
   before_validation :normalize_slug
   before_save { |p| p.fullpath = p.fullpath(true) }
+  before_create :set_slug_and_fullpath_for_all_locales
   before_destroy :do_not_remove_index_and_404_pages
 
   ## validations ##
@@ -61,9 +63,13 @@ class Page
     self.index? || self.not_found?
   end
 
-  def fullpath(force = false)
-    if read_attribute(:fullpath).present? && !force
-      return read_attribute(:fullpath)
+  def default_slug
+    I18n.with_site_locale(I18n.default_site_locale) { self.slug }
+  end
+
+  def fullpath_with_building(force = false)
+    if self.fullpath_without_building.present? && !force
+      return self.fullpath_without_building
     end
 
     if self.index? || self.not_found?
@@ -75,6 +81,18 @@ class Page
     end
   end
 
+  alias_method_chain :fullpath, :building
+
+  def fullpath_with_locale(locale)
+    url, locale = self.fullpath(true), locale.to_s
+
+    if locale != self.site.default_locale
+      url = File.join(locale, url)
+    end
+
+    url
+  end
+
   def with_cache?
     self.cache_strategy != 'none'
   end
@@ -104,4 +122,14 @@ class Page
     self.raw_template ||= I18n.t('attributes.defaults.pages.other.body')
   end
 
+  def set_slug_and_fullpath_for_all_locales(locales = nil)
+    (locales || self.site.locales).each do |locale|
+      I18n.with_site_locale(locale) do
+        %w(slug fullpath).each do |meth|
+          self.send(:"#{meth}=", self.send(meth.to_sym))
+        end
+      end
+    end
+  end
+
 end

app/models/site.rb

@@ -1,10 +1,12 @@
 class Site
 
   include Locomotive::Mongoid::Document
+  include Mongoid::I18n
 
   ## Extensions ##
   extend Extensions::Site::SubdomainDomains
   extend Extensions::Site::FirstInstallation
+  include Extensions::Site::I18n
   include Extensions::Shared::Seo
 
   ## fields ##

app/views/admin/current_site/_form.html.haml

@@ -9,6 +9,17 @@
   = f.input :meta_keywords
   = f.input :meta_description
 
+- if can?(:manage, current_site)
+  = f.foldable_inputs :name => :locales, :class => 'language locales' do
+    = f.custom_input :locales, { :css => 'full', :with_label => false } do
+      #locales
+        - ordered_site_locales(@site).each do |locale|
+          %span
+            = check_box_tag 'site[locales][]', locale, @site.locales.include?(locale), :id => "site-locales-#{locale}"
+            %label{ :for => "site-locales-#{locale}" }
+              = image_tag "admin/icons/flags/#{locale}.png"
+              = t("admin.locales.#{locale}")
+
 - if can?(:point, Site)
   - if manage_subdomain_or_domains?
     = f.foldable_inputs :name => :access_points, :class => 'editable-list off' do

app/views/admin/current_site/edit.html.haml

@@ -2,6 +2,9 @@
 
 - content_for :submenu do
   = render_cell 'admin/settings_menu', :show
+  
+- content_for :actions do
+  = render_cell 'admin/site_locale_picker', :show, :site => current_site, :locale => I18n.site_locale
 
 - content_for :buttons do
   - if can?(:manage, @site)

app/views/admin/my_account/edit.html.haml

@@ -40,8 +40,7 @@
           = f.radio_button :locale, locale
           %label{ :for => "my_account_locale_#{locale.downcase}" }
             = image_tag "admin/icons/flags/#{locale}.png"
-            = t(".#{locale}")
-          /  
+            = t("admin.locales.#{locale}")
 
 
   = render 'admin/shared/form_actions', :button_label => :update

app/views/admin/shared/actions/_contents.html.haml

@@ -1,2 +1,4 @@
 - if can? :manage, ContentType
-  = link_to content_tag(:em) + content_tag(:span, t('admin.content_types.index.new')), new_admin_content_type_url
+  = link_to content_tag(:em) + content_tag(:span, t('admin.content_types.index.new')), new_admin_content_type_url
+
+= render_cell 'admin/site_locale_picker', :show, :site => current_site, :locale => I18n.site_locale

config/assets.yml

@@ -93,6 +93,7 @@ stylesheets:
     - public/stylesheets/admin/formtastic_changes.css
     - public/stylesheets/admin/assets.css
     - public/stylesheets/admin/sites_picker.css
+    - public/stylesheets/admin/site_locale_picker.css
     - public/stylesheets/admin/application.css
     - public/stylesheets/admin/safari.css
     - public/stylesheets/admin/guiders-1.1.0.css

config/locales/admin_ui.de.yml

@@ -1,5 +1,15 @@
 de:
   admin:
+    locales:
+      en: Englisch
+      de: Deutsch
+      fr: Französisch
+      pt-BR: "Bras. Portugisisch"
+      it: "Italienisch"
+      nl: "Holländer"
+      es: "Spanisch"
+      ru: "Russisch"
+
     buttons:
       login: Einloggen
       send_password: Senden
@@ -157,14 +167,6 @@ de:
       edit:
         help: "Deinen Namen kannst du durch darauf klicken ändern."
         new_site: Neue Webseite
-        en: Englisch
-        de: Deutsch
-        fr: Französisch
-        pt-BR: "Bras. Portugisisch"
-        it: "Italienisch"
-        nl: "Holländer"
-        es: "Spanisch"
-        ru: "Russisch"
         ask_for_name: "Bitte gib deinen neuen Namen an"
 
     theme_assets:

config/locales/admin_ui.en.yml

@@ -1,5 +1,15 @@
 en:
   admin:
+    locales:
+      en: English
+      de: German
+      fr: French
+      pt-BR: "Brazilian Portuguese"
+      it: Italian
+      nl: Dutch
+      es: Spanish
+      ru: Russian
+
     buttons:
       login: Log in
       send_password: Send
@@ -168,14 +178,6 @@ en:
       edit:
         help: "Your name can be updated by clicking it. To apply your changes, click on the \"Save\" button."
         new_site: new site
-        en: English
-        de: German
-        fr: French
-        pt-BR: "Brazilian Portuguese"
-        it: Italian
-        nl: Dutch
-        es: Spanish
-        ru: Russian
         ask_for_name: "Please type your new name"
 
     theme_assets:

config/locales/admin_ui.fr.yml

@@ -1,5 +1,15 @@
 fr:
   admin:
+    locales:
+      en: en Anglais
+      de: en Allemand
+      fr: en Français
+      pt-BR: "en Portugais"
+      it: "en Italien"
+      nl: "en Hollandais"
+      es: en Espagnol
+      ru: en Russe
+
     errors:
       "500":
         title: Erreur applicative
@@ -169,15 +179,6 @@ fr:
       edit:
         help: "Votre nom est modifiable en cliquant dessus. Pour appliquer votre modification, cliquez après sur le bouton \"Modifier\""
         new_site: nouveau site
-        en: en Anglais
-        de: en Allemand
-        fr: en Français
-        pt-BR: "en Portugais"
-        it: "en Italien"
-        nl: "en Hollandais"
-        es: en Espagnol
-        ru: en Russe
-
         ask_for_name: "Veuillez entrer le nouveau nom"
 
     theme_assets:

config/locales/formtastic.en.yml

@@ -10,6 +10,7 @@ en:
       raw_template: Template
       credentials: Credentials
       language: Language
+      locales: Locales
       sites: Sites
       access_points: Access points
       memberships: Accounts
@@ -67,6 +68,7 @@ en:
         seo_title: "Define a global value here which should be used as the value for the title tag in the head section."
         meta_keywords: "Meta keywords used within the head tag of the page. They are separated by a comma. Required for SEO."
         meta_description: "Meta description used within the head tag of the page. Required for SEO."
+        locales: "Drag&drop a flag to the first position to make it the default one."
         domain_name: "ex: locomotiveapp.org"
         robots_txt: "Content of the <span class='code'>/robots.txt</span> file. Check the following <a href='http://www.w3.org/TR/html4/appendix/notes.html#h-B.4.1.1'>url</a> for more information."
       theme_asset:

config/mongoid.yml

@@ -9,11 +9,11 @@ defaults: &defaults
 
 development:
   <<: *defaults
-  database: locomotive_dev
+  database: locomotive_i18n_dev
 
 test:
   <<: *defaults
-  database: locomotive_test
+  database: locomotive_i18n_test
 
 # set these environment variables on your prod server
 production:

doc/TODO

@@ -1,5 +1,42 @@
 BOARD:
 
+- i18n (in progress)
+  x site locales
+    x model
+    x ui
+  x locale picker
+  x patches
+    x i18n
+    x mongoid-i18n
+  x rendering engine
+    x get locale
+    x render the right version
+  x contents
+    x store the site locale value
+    x pages
+      x title / slug / fullpath / seo
+      x template
+      x editable contents
+    x custom contents (models)
+    (- snippets)
+    x site
+      x seo
+      x locale picker
+  - liquid tags:
+    x locale switcher
+    x nav
+    (- link_to (new)
+    - others ?)    -
+  - theme_assets
+  - other problems to solve:
+    x If you create a new page it shall always be created in the default_language, not depending on the used language in the backend.
+    - set the page slug for all the site locales
+    - default site locale even if the i18n feature is disabled (the disable procedure is missing btw)
+    - redirect for the default site locale if urls like /<default_site_locale>/....
+    - inline editing
+    - with_scope is broken
+  - refactor
+
 BACKLOG:
 
 - custom_fields:

lib/locomotive.rb

@@ -9,6 +9,7 @@ require 'locomotive/dragonfly'
 require 'locomotive/liquid'
 require 'locomotive/mongoid'
 require 'locomotive/carrierwave'
+require 'locomotive/i18n'
 require 'locomotive/custom_fields'
 require 'locomotive/httparty'
 require 'locomotive/inherited_resources'

lib/locomotive/configuration.rb

@@ -8,6 +8,7 @@ module Locomotive
       # :forbidden_paths      => %w{layouts snippets stylesheets javascripts assets admin system api},
       :reserved_slugs         => %w{stylesheets javascripts assets admin images api pages edit},
       :locales                => %w{en de fr pt-BR it nl es ru},
+      :site_locales           => %w{en de fr pt-BR it nl es ru},
       :cookie_key             => '_locomotive_session',
       :enable_logs            => false,
       :hosting                => :auto,
@@ -23,7 +24,7 @@ module Locomotive
         :entitystore => URI.encode("file:#{Rails.root}/tmp/dragonfly/cache/body")
       },
       :devise_modules             => [:database_authenticatable, :recoverable, :rememberable, :trackable, :validatable, :encryptable, { :encryptor => :sha1 }],
-      :context_assign_extensions  => {  }
+      :context_assign_extensions  => {}
     }
 
     cattr_accessor :settings

lib/locomotive/custom_fields.rb

@@ -23,6 +23,13 @@ module CustomFields
     module Category
       class Item
 
+        include Mongoid::I18n
+
+        localized_fields :name, :position
+
+        field :name
+        field :position, :type => Integer, :default => 0
+
         def to_liquid
           { 'id' => self._id.to_s, 'name' => self.name }
         end

lib/locomotive/engine.rb

@@ -5,6 +5,7 @@ require 'json/pure'
 require 'devise'
 require 'mongoid'
 require 'mongoid_acts_as_tree'
+require 'mongoid/i18n'
 require 'will_paginate'
 require 'haml'
 require 'liquid'

lib/locomotive/i18n.rb

@@ -0,0 +1,213 @@
+# require 'ruby-debug'
+## patches for the i18n support (aka multi languages support)
+require 'i18n'
+
+module I18n
+  class Config
+    def site_locale
+      @site_locale ||= default_site_locale
+    end
+
+    def site_locale=(site_locale)
+      @site_locale = site_locale.to_sym rescue nil
+    end
+
+    def default_site_locale
+      @@default_site_locale ||= :en
+    end
+
+    def default_site_locale=(site_locale)
+      @@default_site_locale = site_locale.to_sym rescue nil
+    end
+  end
+
+  class << self
+    # Write methods which delegates to the configuration object
+    %w(site_locale default_site_locale).each do |method|
+      module_eval <<-DELEGATORS, __FILE__, __LINE__ + 1
+        def #{method}
+          config.#{method}
+        end
+
+        def #{method}=(value)
+          config.#{method} = (value)
+        end
+      DELEGATORS
+    end
+
+    # Executes block with given I18n.site_locale set.
+    def with_site_locale(tmp_locale = nil)
+      if tmp_locale
+        current_locale    = self.site_locale
+        self.site_locale  = tmp_locale
+      end
+      yield
+    ensure
+      self.site_locale = current_locale if tmp_locale
+    end
+  end
+end
+
+## CARRIERWAVE ##
+require 'carrierwave/orm/mongoid'
+
+module CarrierWave
+  module Mongoid
+    def mount_uploader_with_localization(column, uploader=nil, options={}, &block)
+      mount_uploader_without_localization(column, uploader, options, &block)
+
+      define_method(:read_uploader) { |name| self.send(name.to_sym) }
+      define_method(:write_uploader) { |name, value| self.send(:"#{name.to_sym}=", value) }
+    end
+
+    alias_method_chain :mount_uploader, :localization
+  end
+end
+
+## MONGOID-I18n ##
+
+# TODO: fork https://github.com/Papipo/mongoid_i18n
+
+module Mongoid
+  module I18n
+    class LocalizedField < Hash
+
+      attr_accessor :type
+
+      def initialize(type = nil)
+        self.type = type || Object
+        super nil
+      end
+
+      def [](key)
+        self.type.set(super(key))
+      end
+
+      def []=(key, value)
+        super(key, self.type.set(value))
+      end
+
+      def merge(other_hash, &block)
+        # puts "merging #{other_hash.inspect}"
+        converted_hash = {}
+        other_hash.each { |k, v| converted_hash[k] = self.type.set(v) }
+        # puts "converted_hash = #{converted_hash.inspect}"
+        super(converted_hash, &block)
+      end
+
+    end
+  end
+end
+
+# DIRTY MONKEY PATCHING BEFORE THE REFACTORING
+module Mongoid
+  module Criterion
+    class Selector< Hash
+      def []=(key, value)
+        key = "#{key}.#{::I18n.site_locale}" if fields[key.to_s].try(:type) == Mongoid::I18n::LocalizedField
+        super
+      end
+    end
+  end
+
+  module I18n
+
+    included do
+      cattr_accessor :localized_fields_list
+    end
+
+    module ClassMethods
+
+      def localized_fields(*args)
+        self.localized_fields_list = [*args].collect
+      end
+
+      def field(name, options = {})
+        if localized_field?(name)
+          options.merge!(:type => LocalizedField, :default => LocalizedField.new(options[:type]))
+        end
+        super
+      end
+
+      protected
+
+      def localized_field?(name)
+        (self.localized_fields_list || []).any? do |rule|
+          case rule
+          when String, Symbol then name.to_s == rule.to_s
+          when Regexp then !(name.to_s =~ rule).nil?
+          else
+            false
+          end
+        end.tap do |result|
+          # options[:type] = LocalizedField if result
+
+          # puts "#{name.inspect}... localized ? #{result.inspect}"
+        end
+      end
+
+      def create_accessors(name, meth, options = {})
+        if options[:type] == LocalizedField
+
+          if options[:use_default_if_empty] != false # either nil or true
+            define_method(meth) do
+              value = read_attribute(name)
+              if value.is_a?(Hash)
+                converted_value = options[:default].merge(value)
+
+                value = converted_value[::I18n.site_locale.to_s]
+
+                value.to_s.empty? ? converted_value[::I18n.default_site_locale.to_s] : value
+              else
+                value
+              end
+            end
+          else
+            define_method(meth) do
+              value = read_attribute(name)
+              if value.is_a?(Hash)
+                converted_value = options[:default].merge(value)
+                options[:default].merge(value)[::I18n.site_locale.to_s]
+              else
+                value
+              end
+            end
+          end
+
+          define_method("#{meth}=") do |value|
+            if !@attributes[name].nil? && !@attributes[name].is_a?(Hash)
+              # existing value but not localized yet
+              old_value = @attributes[name]
+              @attributes[name] = options[:default].merge(::I18n.default_site_locale.to_s => old_value)
+            end
+
+            @attributes[name] ||= options[:default]
+
+            @attributes[name] = options[:default].merge(@attributes[name]) unless @attributes[name].is_a?(LocalizedField)
+
+            value = if value.is_a?(Hash)
+              @attributes[name].merge(value)
+            else
+              @attributes[name].merge(::I18n.site_locale.to_s => value)
+            end
+
+            value = value.delete_if { |key, value| value.to_s.empty? } if options[:clear_empty_values] != false
+
+            write_attribute(name, value)
+          end
+
+          define_method("#{meth}_translations") { read_attribute(name) }
+
+          if options[:clear_empty_values] != false
+            define_method("#{meth}_translations=") { |value| write_attribute(name, value.delete_if { |key, value| value.blank? }) }
+          else
+            define_method("#{meth}_translations=") { |value| write_attribute(name, value) }
+          end
+
+        else
+          super
+        end
+      end
+    end
+  end
+end

lib/locomotive/liquid/drops/content.rb

@@ -21,6 +21,10 @@ module Locomotive
           self._source.highlighted_field_value
         end
 
+        def _permalink
+          self._source._permalink
+        end
+
       end
     end
   end

lib/locomotive/liquid/tags/locale_switcher.rb

@@ -0,0 +1,76 @@
+module Locomotive
+  module Liquid
+    module Tags
+      # Display the links to change the locale of the current page
+      #
+      # Usage:
+      #
+      # {% locale_switcher %} => <div id="locale-switcher"><a href="/features" class="current en">Features</a><a href="/fr/fonctionnalites" class="fr">Fonctionnalités</a></div>
+      #
+      # {% locale_switcher label: locale, sep: ' - ' }
+      #
+      # options:
+      #   - label: iso (de, fr, en, ...etc), locale (Deutsch, Français, English, ...etc), title (page title)
+      #   - sep: piece of html code seperating 2 locales
+      #
+      # notes:
+      #   - "iso" is the default choice for label
+      #   - " | " is the default seperating code
+      #
+      class LocaleSwitcher < ::Liquid::Tag
+
+        Syntax = /(#{::Liquid::Expression}+)?/
+
+        def initialize(tag_name, markup, tokens, context)
+          @options = { :label => 'iso', :sep => ' | ' }
+
+          if markup =~ Syntax
+            markup.scan(::Liquid::TagAttributes) { |key, value| @options[key.to_sym] = value.gsub(/"|'/, '') }
+
+            @options[:exclude] = Regexp.new(@options[:exclude]) if @options[:exclude]
+          else
+            raise ::Liquid::SyntaxError.new("Syntax Error in 'locale_switcher' - Valid syntax: locale_switcher <options>")
+          end
+
+          super
+        end
+
+        def render(context)
+          site = context.registers[:site]
+          current_page = context.registers[:page]
+
+          output = %(<div id="locale-switcher">)
+
+          output += site.locales.collect do |locale|
+            I18n.with_site_locale(locale) do
+              url = current_page.fullpath_with_locale(locale)
+
+              if current_page.templatized?
+                url.gsub!('content_type_template', context['content_instance']._permalink)
+              end
+
+              %(<a href="/#{url}" class="#{locale} #{'current' if locale == context['current_locale']}">#{link_label(current_page)}</a>)
+            end
+          end.join(@options[:sep])
+
+          output += %(</div>)
+        end
+
+        private
+
+        def link_label(current_page)
+          case @options[:label]
+          when :iso     then I18n.site_locale
+          when :locale  then I18n.t("admin.locales.#{I18n.site_locale}", :locale => I18n.site_locale)
+          when :title   then current_page.title
+          else
+            I18n.site_locale
+          end
+        end
+
+      end
+
+      ::Liquid::Template.register_tag('locale_switcher', LocaleSwitcher)
+    end
+  end
+end

lib/locomotive/liquid/tags/nav.rb

@@ -56,14 +56,15 @@ module Locomotive
 
         # Determines root node for the list
         def fetch_entries(context)
+          @current_site = context.registers[:site]
           @current_page = context.registers[:page]
 
           children = (case @source
-          when 'site'     then context.registers[:site].pages.root.minimal_attributes.first # start from home page
+          when 'site'     then @current_site.pages.root.minimal_attributes.first # start from home page
           when 'parent'   then @current_page.parent || @current_page
           when 'page'     then @current_page
           else
-            context.registers[:site].pages.fullpath(@source).minimal_attributes.first
+            @current_site.pages.fullpath(@source).minimal_attributes.first
           end).children_with_minimal_attributes.to_a
 
           children.delete_if { |p| !include_page?(p) }
@@ -73,11 +74,13 @@ module Locomotive
         def render_entry_link(page, css, depth)
           selected = @current_page.fullpath =~ /^#{page.fullpath}/ ? ' on' : ''
 
+          page.site = @current_site
+
           icon = @options[:icon] ? '<span></span>' : ''
           label = %{#{icon if @options[:icon] != 'after' }#{page.title}#{icon if @options[:icon] == 'after' }}
 
-          output  = %{<li id="#{page.slug.dasherize}-link" class="link#{selected} #{css}">}
-          output << %{<a href="/#{page.fullpath}">#{label}</a>}
+          output  = %{<li id="#{page.default_slug.dasherize}-link" class="link#{selected} #{css}">}
+          output << %{<a href="/#{page.fullpath_with_locale(I18n.site_locale)}">#{label}</a>}
           output << render_entry_children(page, depth.succ) if (depth.succ <= @options[:depth].to_i)
           output << %{</li>}
 
@@ -90,7 +93,7 @@ module Locomotive
 
           children = page.children_with_minimal_attributes.reject { |c| !include_page?(c) }
           if children.present?
-            output = %{<ul id="#{@options[:id]}-#{page.slug.dasherize}">}
+            output = %{<ul id="#{@options[:id]}-#{page.default_slug.dasherize}">}
             children.each do |c, page|
               css = []
               css << 'first' if children.first == c
@@ -115,8 +118,9 @@ module Locomotive
           end
         end
 
-        ::Liquid::Template.register_tag('nav', Nav)
       end
+
+      ::Liquid::Template.register_tag('nav', Nav)
     end
   end
 end

lib/locomotive/liquid/tags/paginate.rb

@@ -42,7 +42,7 @@ module Locomotive
 
             page_count, current_page = pagination['total_pages'], pagination['current_page']
 
-            path = context.registers[:page].fullpath
+            path = context.registers[:page].fullpath_with_locale(I18n.site_locale)
 
             pagination['previous'] = link(I18n.t('pagination.previous'), current_page - 1, path) if pagination['previous_page']
             pagination['next'] = link(I18n.t('pagination.next'), current_page + 1, path) if pagination['next_page']

lib/locomotive/render.rb

@@ -17,7 +17,9 @@ module Locomotive
 
           render_no_page_error and return if @page.nil?
 
-          output = @page.render(locomotive_context)
+          output = I18n.with_locale(I18n.site_locale) do
+            @page.render(locomotive_context)
+          end
 
           self.prepare_and_set_response(output)
         end
@@ -33,6 +35,12 @@ module Locomotive
         path.gsub!(/\.[a-zA-Z][a-zA-Z0-9]{2,}$/, '') # remove the page extension
         path.gsub!(/^\//, '') # remove the leading slash
 
+        # extract the site locale
+        if path =~ /^(#{current_site.locales.join('|')})+(\/|$)/
+          I18n.site_locale = $1
+          path.gsub!($1 + $2, '')
+        end
+
         path = 'index' if path.blank?
 
         if path != 'index'
@@ -67,7 +75,10 @@ module Locomotive
           'params'            => self.params,
           'url'               => request.url,
           'now'               => Time.now.utc,
-          'today'             => Date.today
+          'today'             => Date.today,
+          'default_locale'    => I18n.default_site_locale.to_s,
+          'current_locale'    => I18n.site_locale.to_s,
+          'locales'           => current_site.locales
         }
 
         assigns.merge!(Locomotive.config.context_assign_extensions)
@@ -87,7 +98,7 @@ module Locomotive
           :current_admin  => current_admin
         }
 
-        ::Liquid::Context.new({}, assigns, registers)
+        ::Liquid::Context.new({}, assigns, registers, true)
       end
 
       def prepare_and_set_response(output)

lib/tasks/locomotive.rake

@@ -29,6 +29,27 @@ namespace :locomotive do
     end
   end
 
+  desc 'Prepare for i18n'
+  task :prepare_for_i18n => :environment do
+    Site.all.each do |site|
+      if site.locales.empty?
+        site.locales = [Locomotive.config.site_locales.first]
+        site.save
+      end
+    end
+
+    Page.skip_callback(:validate, :before)
+    Page.skip_callback(:save, :after)
+
+    I18n.with_site_locale(ENV['LOCALE'] || Locomotive.config.site_locales.first) do
+      Page.all.each do |page|
+        page.template_dependencies = page.template_dependencies
+        page.snippet_dependencies = page.snippet_dependencies
+        page.save(:validate => false)
+      end
+    end
+  end
+
   desc 'Import a remote template described by its URL -- 2 options: SITE=name or id, RESET=by default false'
   task :import => :environment do
     url, site_name_or_id, reset = ENV['URL'], ENV['SITE'], Boolean.set(ENV['RESET']) || false

locomotive_cms.gemspec

@@ -22,6 +22,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'devise', '1.3.4'
   s.add_dependency 'devise_bushido_authenticatable', '1.0.0.alpha10'
   s.add_dependency 'mongoid', '2.0.2'
+  s.add_dependency 'mongoid_i18n'
   s.add_dependency 'bson_ext', '~> 1.3.0'
   s.add_dependency 'locomotive_mongoid_acts_as_tree', '0.1.5.7'
   s.add_dependency 'will_paginate', '~> 3.0.0'

public/javascripts/admin/application.js

@@ -165,4 +165,11 @@ $(document).ready(function() {
     .trigger('refresh');
 
   $('.formtastic fieldset.inputs ol li:not(.item)').last().addClass('last');
+
+  // site locale picker
+  $('#site-locale-picker').hover(function() { $(this).addClass('open'); }, function() { $(this).removeClass('open'); })
+    .find('li:gt(0)').click(function(e) {
+      var locale = $(this).find('.text').html();
+      addParameterToURL('site_locale', locale);
+    });
 });

public/javascripts/admin/site.js

@@ -70,5 +70,6 @@ $(document).ready(function() {
     });
   }).hide();
 
-
+  // locales
+  $('#locales').sortable({ items: 'span', handle: 'label', tolerance: 'pointer', appendTo: 'body' });
 });

public/javascripts/admin/utils.js

@@ -13,6 +13,27 @@ function makeSlug(val, sep) { // code largely inspired by http://www.thewebsitet
   return val.toLowerCase();
 }
 
+function addParameterToURL(key, value) { // code from http://stackoverflow.com/questions/486896/adding-a-parameter-to-the-url-with-javascript
+  key = encodeURIComponent(key); value = encodeURIComponent(value);
+
+  var kvp = document.location.search.substr(1).split('&');
+
+  var i = kvp.length; var x; while(i--) {
+    x = kvp[i].split('=');
+
+    if (x[0] == key) {
+      x[1] = value;
+      kvp[i] = x.join('=');
+      break;
+    }
+  }
+
+  if (i < 0) { kvp[kvp.length] = [key,value].join('='); }
+
+  //this will reload the page, it's likely better to store this until finished
+  document.location.search = kvp.join('&');
+}
+
 (function() {
   String.prototype.trim = function() {
     return this.replace(/^\s+/g, '').replace(/\s+$/g, '');

public/stylesheets/admin/formtastic_changes.css

@@ -508,7 +508,7 @@ form.formtastic fieldset ol li.has-many ul li.template span.actions button span
   font-size: 0.8em;
 }
 
-/* ___ my account ___ */
+/* ___ language / locales ___ */
 
 form.formtastic fieldset.language li.full span {
   display: inline-block;
@@ -535,6 +535,14 @@ form.formtastic fieldset.language li.full span input {
   margin-right: 2px;
 }
 
+form.formtastic fieldset.locales li.full span:first-child label {
+  color: #000;
+}
+
+form.formtastic fieldset.locales p.inline-hints {
+  margin-top: 15px;
+}
+
 /* ___ membership ___ */
 
 form.formtastic fieldset.email li.full input {

public/stylesheets/admin/menu.css

@@ -107,7 +107,8 @@
     background: transparent url(/images/admin/menu/submenu/action-border.png) repeat-y left 0; }
     #submenu > .action a {
       margin-top: 18px;
-      display: inline-block;
+      display: block;
+      float: left;
       background: rgba(0, 0, 0, 0.4);
       border-radius: 16px;
       -moz-border-radius: 16px;

public/stylesheets/admin/site_locale_picker.css

@@ -0,0 +1,62 @@
+/* ___ AUTOMATICALLY GENERATED: see admin/site_locale_picker.scss for the source file */
+/* ___ rounded ___ */
+/* ___ box shadow ___ */
+/* ___ others ___ */
+#site-locale-picker {
+  position: relative;
+  float: right;
+  margin: 18px 0 0 10px;
+  padding: 0px 25px 0 10px;
+  border: 1px solid transparent;
+  background: rgba(0, 0, 0, 0.4);
+  border-radius: 16px;
+  -moz-border-radius: 16px;
+  -webkit-border-radius: 16px; }
+  #site-locale-picker:hover {
+    border-color: black;
+    border-radius: 12px;
+    -moz-border-radius: 12px;
+    -webkit-border-radius: 12px; }
+  #site-locale-picker .hand {
+    position: absolute;
+    top: 7px;
+    right: 7px;
+    height: 7px;
+    width: 12px;
+    background: transparent url(/images/admin/menu/icons.png) no-repeat 0px -16px; }
+  #site-locale-picker ul {
+    list-style: none;
+    margin: 0px;
+    padding: 0px; }
+    #site-locale-picker ul li {
+      position: relative;
+      display: none;
+      margin: 5px 0;
+      height: 22px;
+      line-height: 20px;
+      cursor: pointer; }
+      #site-locale-picker ul li img.flag {
+        position: relative;
+        top: 1px;
+        width: 20px;
+        height: 20px; }
+      #site-locale-picker ul li span.text {
+        position: relative;
+        position: relative;
+        top: -6px;
+        color: #fff;
+        font-size: 0.7em;
+        text-shadow: 1px 1px 1px #000;
+        text-transform: uppercase; }
+      #site-locale-picker ul li:first-child {
+        display: block;
+        margin: 0px;
+        cursor: default; }
+      #site-locale-picker ul li:last-child {
+        margin-bottom: 0px; }
+      #site-locale-picker ul li:hover span.text {
+        text-decoration: underline; }
+  #site-locale-picker.open ul li {
+    display: block; }
+    #site-locale-picker.open ul li:first-child {
+      margin-bottom: 5px; }

public/stylesheets/sass/admin/menu.scss

@@ -112,7 +112,8 @@
 
     a {
       margin-top: 18px;
-      display: inline-block;
+      display: block;
+      float: left;
       background: rgba(0, 0, 0, 0.4);
       @include full-rounded(16px);
       padding: 0px 10px 0 15px;

public/stylesheets/sass/admin/site_locale_picker.scss

@@ -0,0 +1,105 @@
+/* ___ AUTOMATICALLY GENERATED: see admin/site_locale_picker.scss for the source file */
+
+@import "helpers";
+
+#site-locale-picker {
+
+  position: relative;
+
+  float: right;
+
+  margin: 18px 0 0 10px;
+  padding: 0px 25px 0 10px;
+
+  border: 1px solid transparent;
+
+  background: rgba(0, 0, 0, 0.4);
+  @include full-rounded(16px);
+
+  &:hover {
+    border-color: rgba(0, 0, 0, 1);
+    @include full-rounded(12px);
+  }
+
+  .hand {
+    position: absolute;
+    top: 7px;
+    right: 7px;
+
+    height: 7px;
+    width: 12px;
+
+    background: transparent url(/images/admin/menu/icons.png) no-repeat 0px -16px;
+  }
+
+  ul {
+    list-style: none;
+
+    margin: 0px;
+    padding: 0px;
+
+    li {
+      position: relative;
+
+      display: none;
+
+      margin: 5px 0;
+
+      height: 22px;
+      line-height: 20px;
+
+      cursor: pointer;
+
+      img.flag {
+        position: relative;
+        top: 1px;
+
+        width: 20px;
+        height: 20px;
+      }
+
+      span.text {
+        position: relative;
+
+        position: relative;
+        top: -6px;
+
+        color: #fff;
+        font-size: 0.7em;
+        text-shadow: 1px 1px 1px #000;
+        text-transform: uppercase;
+      }
+
+      &:first-child {
+        display: block;
+        margin: 0px;
+        cursor: default;
+      }
+
+      &:last-child {
+        margin-bottom: 0px;
+      }
+
+      &:hover {
+        span.text {
+          text-decoration: underline;
+        }
+      }
+
+    }
+  }
+
+  &.open {
+    ul {
+      li {
+        display: block;
+
+        &:first-child {
+          margin-bottom: 5px;
+        }
+      }
+    }
+  }
+
+
+}