Replacing Ruby-GetText with fast_gettext

Besides being faster, consumming less memory, and being thread-safe, fast_gettext's approach is cleaner than Ruby-GetText's because it does not mess with the Rails internals. That's probably due to the fact that fast_gettext was designed after Rails had proper I18N support, so that's not exactly Ruby-GetText's fault. Current versions of Ruby-GetText are claimed to be thread-safe as well, but I decided to go with fast_gettext regardless. I am messing with the Rails internals myself by copying some code from Ruby-Gettext, but that code will be dropped when we upgrade to a more recent Rails version with proper I18N. Code was copied from Ruby-GetText to implement: * per-language cache * validation error messages translation During initialization, the needed .mo files installed system-wide are symlinked locally. By doing this we can take "similar" locales locally since fast_gettext does not seem to support loading of files from similar locales (e.g. loading pt_BR/LC_MESSAGES/domain.mo when pt/LC_MESSAGES/domain.mo is not available). This hopefully will fix the long-standing bug with messed up translations due to high concurrency and non-thread-safety of the version of Ruby-GetText in Debian Lenny. (ActionItem1315)

Replacing Ruby-GetText with fast_gettext
Besides being faster, consumming less memory, and being thread-safe, fast_gettext's approach is cleaner than Ruby-GetText's because it does not mess with the Rails internals. That's probably due to the fact that fast_gettext was designed after Rails had proper I18N support, so that's not exactly Ruby-GetText's fault. Current versions of Ruby-GetText are claimed to be thread-safe as well, but I decided to go with fast_gettext regardless. I am messing with the Rails internals myself by copying some code from Ruby-Gettext, but that code will be dropped when we upgrade to a more recent Rails version with proper I18N. Code was copied from Ruby-GetText to implement: * per-language cache * validation error messages translation During initialization, the needed .mo files installed system-wide are symlinked locally. By doing this we can take "similar" locales locally since fast_gettext does not seem to support loading of files from similar locales (e.g. loading pt_BR/LC_MESSAGES/domain.mo when pt/LC_MESSAGES/domain.mo is not available). This hopefully will fix the long-standing bug with messed up translations due to high concurrency and non-thread-safety of the version of Ruby-GetText in Debian Lenny. (ActionItem1315)
Antonio Terceiro
1 parent 6d904169
Showing 24 changed files with 226 additions and 80 deletions Show diff stats
app/controllers/application.rb
app/helpers/account_helper.rb
app/helpers/application_helper.rb
app/helpers/categories_helper.rb
app/helpers/content_viewer_helper.rb
app/helpers/countries_helper.rb
app/helpers/dates_helper.rb
app/helpers/language_helper.rb
app/helpers/profile_editor_helper.rb
app/models/task.rb
app/views/layouts/application-ng.rhtml
config/environment.rb
config/initializers/dependencies.rb
config/initializers/fast_gettext.rb
features/step_definitions/internationalization_steps.rb
lib/noosfero.rb
lib/noosfero/i18n.rb
lib/tasks/populate.rake
lib/unifreire_terminology.rb
lib/zen3_terminology.rb
@@ -70,20 +70,15 @@ class ApplicationController &lt; ActionController::Base
     end
   end
-  include GetText
-  before_init_gettext :maybe_save_locale, :default_locale
-  def maybe_save_locale
+  before_filter :set_locale
+  def set_locale
+    FastGettext.available_locales = Noosfero.available_locales
+    FastGettext.default_locale = Noosfero.default_locale
+    FastGettext.set_locale(params[:lang] || session[:lang] || Noosfero.default_locale || request.env['HTTP_ACCEPT_LANGUAGE'] || 'en')
     if params[:lang]
-      cookies[:lang] = params[:lang]
+      session[:lang] = params[:lang]
     end
   end
-  def default_locale
-    if Noosfero.default_locale && cookies[:lang].blank?
-      cookies[:lang] = params[:lang] = Noosfero.default_locale
-    end
-  end
-  protected :maybe_save_locale, :default_locale
-  init_gettext 'noosfero'
   include NeedsProfile
 module AccountHelper
-  include GetText
   def button_to_step(type, step, current_step, html_options = {})
     if current_step == step
@@ -26,6 +26,10 @@ module ApplicationHelper
   include AccountHelper
+  def locale
+    FastGettext.locale
+  end
+
   def load_web2_conf
     if File.exists?( RAILS_ROOT + '/config/web2.0.yml')
       YAML.load_file( RAILS_ROOT + '/config/web2.0.yml' )
@@ -664,7 +668,6 @@ module ApplicationHelper
   # Should be on the forms_helper file but when its there the translation of labels doesn't work
   class NoosferoFormBuilder < ActionView::Helpers::FormBuilder
-  include GetText
   extend ActionView::Helpers::TagHelper
     def self.output_field(text, field_html, field_id = nil)
@@ -687,13 +690,7 @@ module ApplicationHelper
     (field_helpers - %w(hidden_field)).each do |selector|
       src = <<-END_SRC
         def #{selector}(field, *args, &proc)
-          column = object.class.columns_hash[field.to_s]
-          text =
-            ( column ?
-              column.human_name :
-              field.to_s.humanize
-            )
-
+          text = object.class.human_attribute_name(field.to_s)
           NoosferoFormBuilder::output_field(text, super)
         end
       END_SRC
 module CategoriesHelper
-  include GetText
   COLORS = [
     [ N_('Do not display at the menu'), nil ],
 module ContentViewerHelper
-  include GetText
   include BlogHelper
   def number_of_comments(article)
@@ -2,9 +2,6 @@ class CountriesHelper
   include Singleton
-  include GetText
-  bindtextdomain 'iso_3166'
-
   # a dump of iso_3166.xml from Debian source package iso-codes
   COUNTRIES = [
     ["Afghanistan", "AF"],
-module DatesHelper
+require 'noosfero/i18n'
-  include GetText
+module DatesHelper
   # FIXME Date#strftime should translate this for us !!!!
   MONTHS = [
 module LanguageHelper
   def language
-    if Noosfero.available_locales.include?(locale.to_s) ||
-      Noosfero.available_locales.include?(locale.language)
-      locale.language
-    else
-      Noosfero.default_locale || 'en'
-    end
+    locale
   end
   def tinymce_language
 module ProfileEditorHelper
-  include GetText
   AREAS_OF_STUDY = [
     N_('Agrometeorology'),
@@ -12,7 +12,6 @@
 class Task < ActiveRecord::Base
   module Status
-    include GetText
     # the status of tasks just created
     ACTIVE = 1
@@ -37,7 +37,7 @@
       }
     </script>
-    <a href="#content" id="link-go-content"><span>Ir para o conteúdo</span></a>
+    <a href="#content" id="link-go-content"><span><%= _("Go to the content") %></span></a>
     <div id="wrap-1">
       <div id='theme-header'>
@@ -10,17 +10,6 @@ RAILS_GEM_VERSION = &#39;2.1.0&#39; unless defined? RAILS_GEM_VERSION
 # Bootstrap the Rails environment, frameworks, and default configuration
 require File.join(File.dirname(__FILE__), 'boot')
-# locally-developed modules
-require 'locale'
-require 'gettext/rails'
-require 'acts_as_filesystem'
-require 'acts_as_having_settings'
-require 'acts_as_searchable'
-require 'acts_as_having_boxes'
-require 'acts_as_having_image'
-require 'will_paginate'
-require 'route_if'
-
 # extra directories for controllers organization 
 extra_controller_dirs = %w[
   app/controllers/my_profile
@@ -0,0 +1,10 @@
+# locally-developed modules
+require 'acts_as_filesystem'
+require 'acts_as_having_settings'
+require 'acts_as_searchable'
+require 'acts_as_having_boxes'
+require 'acts_as_having_image'
+require 'route_if'
+
+# third-party libraries
+require 'will_paginate'
@@ -0,0 +1 @@
+require 'noosfero/i18n'
-def language_to_header(name)
+def language_to_code(name)
   {
     'Brazilian Portuguese' => 'pt-br',
     'European Portuguese' => 'pt-pt',
@@ -17,29 +17,25 @@ def native_name(name)
   }[name] || name
 end
-def language_to_code(name)
-   language_to_header(name)
-end
-
 Given /^Noosfero is configured to use (.+) as default$/ do |lang|
   Noosfero.default_locale = language_to_code(lang)
 end
-After('@default_locale_config') do
+After do
+  # reset everything back to normal
   Noosfero.default_locale = nil
+  FastGettext.locale = 'en'
 end
 Given /^a user accessed in (.*) before$/ do |lang|
   session = Webrat::Session.new(Webrat.adapter_class.new(self))
   session.extend(Webrat::Matchers)
   session.visit('/')
-  session.should have_selector('html[lang=en]')
+  session.should have_selector("html[lang=#{language_to_code(lang)}]")
 end
 Given /^my browser prefers (.*)$/ do |lang|
-  @n ||= 0
-  header 'Accept-Language', language_to_header(lang)
-
+  header 'Accept-Language', language_to_code(lang)
 end
 Then /^the site should be in (.*)$/ do |lang|
@@ -12,12 +12,15 @@ module Noosfero
     attr_accessor :locales
     attr_accessor :default_locale
     def available_locales
-      @available_locales ||= locales.keys
-    end
-    def each_locale
-      locales.keys.sort.each do |key|
-        yield(key, locales[key])
-      end
+      @available_locales ||=
+        begin
+          locales_list = locales.keys
+          # move English to the beginning
+          if locales_list.include?('en')
+            locales_list = ['en'] + (locales_list - ['en']).sort
+          end
+          locales_list
+        end
     end
   end
@@ -0,0 +1,183 @@
+require 'fast_gettext'
+
+class Object
+  include FastGettext::Translation
+  alias :gettext :_
+  alias :ngettext :n_
+end
+
+class ActiveRecord::Errors
+  default_error_messages.update(
+    :inclusion => N_("%{fn} is not included in the list"),
+    :exclusion => N_("%{fn} is reserved"),
+    :invalid => N_("%{fn} is invalid"),
+    :confirmation => N_("%{fn} doesn't match confirmation"),
+    :accepted  => N_("%{fn} must be accepted"),
+    :empty => N_("%{fn} can't be empty"),
+    :blank => N_("%{fn} can't be blank"),
+    :too_long => N_("%{fn} is too long (maximum is %d characters)"),
+    :too_short => N_("%{fn} is too short (minimum is %d characters)"),
+    :wrong_length => N_("%{fn} is the wrong length (should be %d characters)"),
+    :taken => N_("%{fn} has already been taken"),
+    :not_a_number => N_("%{fn} is not a number")
+  )
+
+  def localize_error_messages
+    errors = {}
+    each do |attr,msg|
+      next if msg.nil?
+      errors[attr] ||= []
+      errors[attr] << _(msg).sub('%{fn}', @base.class.human_attribute_name(attr))
+    end
+    errors
+  end
+  def on_with_gettext(attribute)
+    errors = localize_error_messages[attribute.to_s]
+    return nil if errors.nil?
+    errors.size == 1 ? errors.first : errors
+  end
+  alias_method_chain :on, :gettext
+
+  def full_messages_with_gettext
+    full_messages = []
+    errors = localize_error_messages
+    errors.each_key do |attr|
+      errors[attr].each do |msg|
+        next if msg.nil?
+        full_messages << msg
+      end
+    end
+    full_messages
+  end
+  alias_method_chain :full_messages, :gettext
+end
+
+
+module ActionView::Helpers::ActiveRecordHelper
+  module L10n
+    @error_message_title = Nn_("%{num} error prohibited this %{record} from being saved", "%{num} errors prohibited this %{record} from being saved").flatten
+    @error_message_explanation = Nn_("There was a problem with the following field:", "There were problems with the following fields:").flatten
+    module_function
+    def error_messages_for(instance, objects, object_names, count, options)
+      record = _(options[:object_name] || object_names[0].to_s)
+
+      html = {}
+      [:id, :class].each do |key|
+        if options.include?(key)
+          value = options[key]
+          html[key] = value unless value.blank?
+        else
+          html[key] = 'errorExplanation'
+        end
+      end
+
+      if options[:message_title]
+        header_message = instance.error_message(options[:message_title], count) % {:num => count, :record => record}
+      else
+        header_message = ((count == 1) ? _(@error_message_title[0]) : _(@error_message_title[1])) % {:num => count, :record => record}
+      end
+      if options[:message_explanation]
+        message_explanation = instance.error_message(options[:message_explanation], count) % {:num => count}
+      else
+        message_explanation = (count == 1 ? _(@error_message_explanation[0]) : _(@error_message_explanation[1])) % {:num => count}
+      end
+
+      error_messages = objects.map {|object| object.errors.full_messages.map {|msg| instance.content_tag(:li, msg) } }
+
+      instance.content_tag(
+        :div,
+        instance.content_tag(options[:header_tag] || :h2, header_message) <<
+        instance.content_tag(:p, message_explanation) <<
+        instance.content_tag(:ul, error_messages),
+          html
+      )
+    end
+  end
+
+  alias error_messages_for_without_localize error_messages_for #:nodoc:
+
+  # error_messages_for overrides original method with localization.
+  # And also it extends to be able to replace the title/explanation of the header of the error dialog. (Since 1.90)
+  # If you want to override these messages in the whole application, 
+  #    use ActionView::Helpers::ActiveRecordHelper::L10n.set_error_message_(title|explanation) instead.
+  # * :message_title - the title of message. Use Nn_() to path the strings for singular/plural.
+  #                       e.g. Nn_("%{num} error prohibited this %{record} from being saved", 
+  # 			       "%{num} errors prohibited this %{record} from being saved")
+  # * :message_explanation - the explanation of message
+  #                       e.g. Nn_("There was a problem with the following field:", 
+  #                                "There were %{num} problems with the following fields:")
+  def error_messages_for(*params)
+    options = params.last.is_a?(Hash) ? params.pop.symbolize_keys : {}
+    objects = params.collect {|object_name| instance_variable_get("@#{object_name}") }.compact
+    object_names = params.dup
+    count   = objects.inject(0) {|sum, object| sum + object.errors.count }
+    if count.zero?
+          ''
+    else
+      L10n.error_messages_for(self, objects, object_names, count, options)
+    end
+  end
+
+end
+
+module ActionController::Caching::Fragments
+  def fragment_cache_key_with_fast_gettext(name)
+    ret = fragment_cache_key_without_fast_gettext(name)
+    if ret.is_a? String
+      ret.gsub(/:/, ".") << "_#{FastGettext.locale}"
+    else
+      ret
+    end
+  end
+  alias_method_chain :fragment_cache_key, :fast_gettext
+
+  def expire_fragment_with_fast_gettext(name, options = nil)
+    return unless perform_caching
+
+    key = fragment_cache_key_without_fast_gettext(name)
+    if key.is_a?(Regexp)
+      self.class.benchmark "Expired fragments matching: #{key.source}" do
+        fragment_cache_store.delete_matched(key, options)
+      end
+    else
+      key = key.gsub(/:/, ".")
+      self.class.benchmark "Expired fragment: #{key}, lang = #{FastGettext.available_locales.inspect}" do
+        if FastGettext.available_locales
+          FastGettext.available_locales.each do |lang|
+            fragment_cache_store.delete("#{key}_#{lang}", options)
+          end
+        end
+      end
+    end
+  end
+  alias_method_chain :expire_fragment, :fast_gettext
+end
+
+FileUtils.mkdir_p(Rails.root + '/locale')
+Dir.glob(Rails.root + '/locale/*').each do |dir|
+  lang = File.basename(dir)
+  FileUtils.mkdir_p("#{Rails.root}/locale/#{lang}/LC_MESSAGES")
+  ['iso_3166', 'rails'].each do |domain|
+    target = "#{Rails.root}/locale/#{lang}/LC_MESSAGES/#{domain}.mo"
+    if !File.exists?(target)
+      orig = "/usr/share/locale/#{lang}/LC_MESSAGES/#{domain}.mo"
+      if File.exists?(orig)
+        File.symlink(orig, target)
+      else
+        alternatives = Dir.glob("/usr/share/locale/#{lang}_*/LC_MESSAGES/#{domain}.mo")
+        unless alternatives.empty?
+          File.symlink(alternatives.first, target)
+        end
+      end
+    end
+  end
+end
+
+repos = [
+  FastGettext::TranslationRepository.build('noosfero', :type => 'mo', :path => Rails.root + '/locale'),
+  FastGettext::TranslationRepository.build('iso_3166', :type => 'mo', :path => Rails.root + '/locale'),
+  FastGettext::TranslationRepository.build('rails',    :type => 'mo', :path => Rails.root + '/locale'),
+]
+
+FastGettext.add_text_domain 'noosferofull', :type => :chain, :chain => repos
+FastGettext.default_text_domain = 'noosferofull'
 require File.dirname(__FILE__) + '/../../config/environment'
 require 'noosfero'
-require 'gettext/rails'
-include GetText
 DEFAULT_ENVIRONMENT_TEXT = <<EOF
 <h1>Environment homepage</h1>
 require 'noosfero/terminology'
 class UnifreireTerminology < Noosfero::Terminology::Custom
-  include GetText
   def initialize
     # NOTE: the hash values must be marked for translation!! 
 require 'noosfero/terminology'
 class Zen3Terminology < Noosfero::Terminology::Custom
-  include GetText
   def initialize
     # NOTE: the hash values must be marked for translation!! 
@@ -2,8 +2,6 @@ require File.dirname(__FILE__) + &#39;/../test_helper&#39;
 class CommunitiesBlockTest < Test::Unit::TestCase
-  include GetText
-
   should 'inherit from ProfileListBlock' do
     assert_kind_of ProfileListBlock, CommunitiesBlock.new
   end
@@ -2,8 +2,6 @@ require File.dirname(__FILE__) + &#39;/../test_helper&#39;
 class EnterprisesBlockTest < Test::Unit::TestCase
-  include GetText
-
   should 'inherit from ProfileListBlock' do
     assert_kind_of ProfileListBlock, EnterprisesBlock.new
   end
@@ -2,8 +2,6 @@ require File.dirname(__FILE__) + &#39;/../test_helper&#39;
 class FriendsBlockTest < ActiveSupport::TestCase
-  include GetText
-
   should 'describe itself' do
     assert_not_equal ProfileListBlock.description, FriendsBlock.description
   end
@@ -4,14 +4,9 @@ class LanguageHelperTest &lt; Test::Unit::TestCase
   include LanguageHelper
-
   should 'return current language' do
-    locale = mock
-    locale.stubs(:to_s).returns('pt_BR')
-    locale.stubs(:language).returns('pt')
-    stubs(:locale).returns(locale)
-
-    assert_equal 'pt', self.language
+    expects(:locale).returns('pt')
+    assert_equal 'pt', language
   end
   should 'remove country code for TinyMCE' do
1	module AccountHelper	1	module AccountHelper
2		2
3	- include GetText
4		3
5	def button_to_step(type, step, current_step, html_options = {})	4	def button_to_step(type, step, current_step, html_options = {})
6	if current_step == step	5	if current_step == step
1	module CategoriesHelper	1	module CategoriesHelper
2		2
3	- include GetText
4		3
5	COLORS = [	4	COLORS = [
6	[ N_('Do not display at the menu'), nil ],	5	[ N_('Do not display at the menu'), nil ],
1	module ContentViewerHelper	1	module ContentViewerHelper
2		2
3	- include GetText
4	include BlogHelper	3	include BlogHelper
5		4
6	def number_of_comments(article)	5	def number_of_comments(article)
1	-module DatesHelper	1	+require 'noosfero/i18n'
2		2
3	- include GetText	3	+module DatesHelper
4		4
5	# FIXME Date#strftime should translate this for us !!!!	5	# FIXME Date#strftime should translate this for us !!!!
6	MONTHS = [	6	MONTHS = [
1	module ProfileEditorHelper	1	module ProfileEditorHelper
2		2
3	- include GetText
4		3
5	AREAS_OF_STUDY = [	4	AREAS_OF_STUDY = [
6	N_('Agrometeorology'),	5	N_('Agrometeorology'),
	@@ -12,7 +12,6 @@		@@ -12,7 +12,6 @@
12	class Task < ActiveRecord::Base	12	class Task < ActiveRecord::Base
13		13
14	module Status	14	module Status
15	- include GetText
16	# the status of tasks just created	15	# the status of tasks just created
17	ACTIVE = 1	16	ACTIVE = 1
18		17
	@@ -37,7 +37,7 @@		@@ -37,7 +37,7 @@
37	}	37	}
38	</script>	38	</script>
39		39
40	- <a href="#content" id="link-go-content"><span>Ir para o conteúdo</span></a>	40	+ <a href="#content" id="link-go-content"><span><%= _("Go to the content") %></span></a>
41		41
42	<div id="wrap-1">	42	<div id="wrap-1">
43	<div id='theme-header'>	43	<div id='theme-header'>
	@@ -10,17 +10,6 @@ RAILS_GEM_VERSION = '2.1.0' unless defined? RAILS_GEM_VERSION		@@ -10,17 +10,6 @@ RAILS_GEM_VERSION = '2.1.0' unless defined? RAILS_GEM_VERSION
10	# Bootstrap the Rails environment, frameworks, and default configuration	10	# Bootstrap the Rails environment, frameworks, and default configuration
11	require File.join(File.dirname(__FILE__), 'boot')	11	require File.join(File.dirname(__FILE__), 'boot')
12		12
13	-# locally-developed modules
14	-require 'locale'
15	-require 'gettext/rails'
16	-require 'acts_as_filesystem'
17	-require 'acts_as_having_settings'
18	-require 'acts_as_searchable'
19	-require 'acts_as_having_boxes'
20	-require 'acts_as_having_image'
21	-require 'will_paginate'
22	-require 'route_if'
23	-
24	# extra directories for controllers organization	13	# extra directories for controllers organization
25	extra_controller_dirs = %w[	14	extra_controller_dirs = %w[
26	app/controllers/my_profile	15	app/controllers/my_profile
@@ -0,0 +1,10 @@		@@ -0,0 +1,10 @@
	1	+# locally-developed modules
	2	+require 'acts_as_filesystem'
	3	+require 'acts_as_having_settings'
	4	+require 'acts_as_searchable'
	5	+require 'acts_as_having_boxes'
	6	+require 'acts_as_having_image'
	7	+require 'route_if'
	8	+
	9	+# third-party libraries
	10	+require 'will_paginate'
@@ -0,0 +1,183 @@		@@ -0,0 +1,183 @@
	1	+require 'fast_gettext'
	2	+
	3	+class Object
	4	+ include FastGettext::Translation
	5	+ alias :gettext :_
	6	+ alias :ngettext :n_
	7	+end
	8	+
	9	+class ActiveRecord::Errors
	10	+ default_error_messages.update(
	11	+ :inclusion => N_("%{fn} is not included in the list"),
	12	+ :exclusion => N_("%{fn} is reserved"),
	13	+ :invalid => N_("%{fn} is invalid"),
	14	+ :confirmation => N_("%{fn} doesn't match confirmation"),
	15	+ :accepted => N_("%{fn} must be accepted"),
	16	+ :empty => N_("%{fn} can't be empty"),
	17	+ :blank => N_("%{fn} can't be blank"),
	18	+ :too_long => N_("%{fn} is too long (maximum is %d characters)"),
	19	+ :too_short => N_("%{fn} is too short (minimum is %d characters)"),
	20	+ :wrong_length => N_("%{fn} is the wrong length (should be %d characters)"),
	21	+ :taken => N_("%{fn} has already been taken"),
	22	+ :not_a_number => N_("%{fn} is not a number")
	23	+ )
	24	+
	25	+ def localize_error_messages
	26	+ errors = {}
	27	+ each do \|attr,msg\|
	28	+ next if msg.nil?
	29	+ errors[attr] \|\|= []
	30	+ errors[attr] << _(msg).sub('%{fn}', @base.class.human_attribute_name(attr))
	31	+ end
	32	+ errors
	33	+ end
	34	+ def on_with_gettext(attribute)
	35	+ errors = localize_error_messages[attribute.to_s]
	36	+ return nil if errors.nil?
	37	+ errors.size == 1 ? errors.first : errors
	38	+ end
	39	+ alias_method_chain :on, :gettext
	40	+
	41	+ def full_messages_with_gettext
	42	+ full_messages = []
	43	+ errors = localize_error_messages
	44	+ errors.each_key do \|attr\|
	45	+ errors[attr].each do \|msg\|
	46	+ next if msg.nil?
	47	+ full_messages << msg
	48	+ end
	49	+ end
	50	+ full_messages
	51	+ end
	52	+ alias_method_chain :full_messages, :gettext
	53	+end
	54	+
	55	+
	56	+module ActionView::Helpers::ActiveRecordHelper
	57	+ module L10n
	58	+ @error_message_title = Nn_("%{num} error prohibited this %{record} from being saved", "%{num} errors prohibited this %{record} from being saved").flatten
	59	+ @error_message_explanation = Nn_("There was a problem with the following field:", "There were problems with the following fields:").flatten
	60	+ module_function
	61	+ def error_messages_for(instance, objects, object_names, count, options)
	62	+ record = _(options[:object_name] \|\| object_names[0].to_s)
	63	+
	64	+ html = {}
	65	+ [:id, :class].each do \|key\|
	66	+ if options.include?(key)
	67	+ value = options[key]
	68	+ html[key] = value unless value.blank?
	69	+ else
	70	+ html[key] = 'errorExplanation'
	71	+ end
	72	+ end
	73	+
	74	+ if options[:message_title]
	75	+ header_message = instance.error_message(options[:message_title], count) % {:num => count, :record => record}
	76	+ else
	77	+ header_message = ((count == 1) ? _(@error_message_title[0]) : _(@error_message_title[1])) % {:num => count, :record => record}
	78	+ end
	79	+ if options[:message_explanation]
	80	+ message_explanation = instance.error_message(options[:message_explanation], count) % {:num => count}
	81	+ else
	82	+ message_explanation = (count == 1 ? _(@error_message_explanation[0]) : _(@error_message_explanation[1])) % {:num => count}
	83	+ end
	84	+
	85	+ error_messages = objects.map {\|object\| object.errors.full_messages.map {\|msg\| instance.content_tag(:li, msg) } }
	86	+
	87	+ instance.content_tag(
	88	+ :div,
	89	+ instance.content_tag(options[:header_tag] \|\| :h2, header_message) <<
	90	+ instance.content_tag(:p, message_explanation) <<
	91	+ instance.content_tag(:ul, error_messages),
	92	+ html
	93	+ )
	94	+ end
	95	+ end
	96	+
	97	+ alias error_messages_for_without_localize error_messages_for #:nodoc:
	98	+
	99	+ # error_messages_for overrides original method with localization.
	100	+ # And also it extends to be able to replace the title/explanation of the header of the error dialog. (Since 1.90)
	101	+ # If you want to override these messages in the whole application,
	102	+ # use ActionView::Helpers::ActiveRecordHelper::L10n.set_error_message_(title\|explanation) instead.
	103	+ # * :message_title - the title of message. Use Nn_() to path the strings for singular/plural.
	104	+ # e.g. Nn_("%{num} error prohibited this %{record} from being saved",
	105	+ # "%{num} errors prohibited this %{record} from being saved")
	106	+ # * :message_explanation - the explanation of message
	107	+ # e.g. Nn_("There was a problem with the following field:",
	108	+ # "There were %{num} problems with the following fields:")
	109	+ def error_messages_for(*params)
	110	+ options = params.last.is_a?(Hash) ? params.pop.symbolize_keys : {}
	111	+ objects = params.collect {\|object_name\| instance_variable_get("@#{object_name}") }.compact
	112	+ object_names = params.dup
	113	+ count = objects.inject(0) {\|sum, object\| sum + object.errors.count }
	114	+ if count.zero?
	115	+ ''
	116	+ else
	117	+ L10n.error_messages_for(self, objects, object_names, count, options)
	118	+ end
	119	+ end
	120	+
	121	+end
	122	+
	123	+module ActionController::Caching::Fragments
	124	+ def fragment_cache_key_with_fast_gettext(name)
	125	+ ret = fragment_cache_key_without_fast_gettext(name)
	126	+ if ret.is_a? String
	127	+ ret.gsub(/:/, ".") << "_#{FastGettext.locale}"
	128	+ else
	129	+ ret
	130	+ end
	131	+ end
	132	+ alias_method_chain :fragment_cache_key, :fast_gettext
	133	+
	134	+ def expire_fragment_with_fast_gettext(name, options = nil)
	135	+ return unless perform_caching
	136	+
	137	+ key = fragment_cache_key_without_fast_gettext(name)
	138	+ if key.is_a?(Regexp)
	139	+ self.class.benchmark "Expired fragments matching: #{key.source}" do
	140	+ fragment_cache_store.delete_matched(key, options)
	141	+ end
	142	+ else
	143	+ key = key.gsub(/:/, ".")
	144	+ self.class.benchmark "Expired fragment: #{key}, lang = #{FastGettext.available_locales.inspect}" do
	145	+ if FastGettext.available_locales
	146	+ FastGettext.available_locales.each do \|lang\|
	147	+ fragment_cache_store.delete("#{key}_#{lang}", options)
	148	+ end
	149	+ end
	150	+ end
	151	+ end
	152	+ end
	153	+ alias_method_chain :expire_fragment, :fast_gettext
	154	+end
	155	+
	156	+FileUtils.mkdir_p(Rails.root + '/locale')
	157	+Dir.glob(Rails.root + '/locale/*').each do \|dir\|
	158	+ lang = File.basename(dir)
	159	+ FileUtils.mkdir_p("#{Rails.root}/locale/#{lang}/LC_MESSAGES")
	160	+ ['iso_3166', 'rails'].each do \|domain\|
	161	+ target = "#{Rails.root}/locale/#{lang}/LC_MESSAGES/#{domain}.mo"
	162	+ if !File.exists?(target)
	163	+ orig = "/usr/share/locale/#{lang}/LC_MESSAGES/#{domain}.mo"
	164	+ if File.exists?(orig)
	165	+ File.symlink(orig, target)
	166	+ else
	167	+ alternatives = Dir.glob("/usr/share/locale/#{lang}_*/LC_MESSAGES/#{domain}.mo")
	168	+ unless alternatives.empty?
	169	+ File.symlink(alternatives.first, target)
	170	+ end
	171	+ end
	172	+ end
	173	+ end
	174	+end
	175	+
	176	+repos = [
	177	+ FastGettext::TranslationRepository.build('noosfero', :type => 'mo', :path => Rails.root + '/locale'),
	178	+ FastGettext::TranslationRepository.build('iso_3166', :type => 'mo', :path => Rails.root + '/locale'),
	179	+ FastGettext::TranslationRepository.build('rails', :type => 'mo', :path => Rails.root + '/locale'),
	180	+]
	181	+
	182	+FastGettext.add_text_domain 'noosferofull', :type => :chain, :chain => repos
	183	+FastGettext.default_text_domain = 'noosferofull'