Redmine

    # The result is cached to prevent from loading all translations files

    # unless :cache => false option is given

    def languages_options(options={})

      if options[:cache] == false

        valid_languages.

          select {|locale| ::I18n.exists?(:general_lang_name, locale)}.

          map {|lang| [ll(lang.to_s, :general_lang_name), lang.to_s]}.

          sort {|x,y| x.first <=> y.first }

      else

        ActionController::Base.cache_store.fetch "i18n/languages_options" do

          languages_options :cache => false

        end

      end

  def test_languages_options_should_ignore_locales_without_general_lang_name_key

    stubs(:valid_languages).returns([:en, :foo])

    assert_equal [["English", "en"]], languages_options(:cache => false)

  end