module WorldFlags module Helper module Locale def set_locale I18n.locale = locales.select_first_in(valid_locales.downcase) end def valid_locales return WorldFlags.available_locales if WorldFlags.available_locales.present? if I18n.respond_to?(:available_locales) && I18n.available_locales.present? I18n.available_locales else raise "You must define a list of available locales for use with WorldFlags either in WorldFlags.available_locales or I18n.available_locales" end end # ensure all country/language/domain types are mapped to their equivalent locale code def locales locale_sources.compact.downcase.map {|loc| WorldFlags.locale(loc) unless loc.blank? } end def locale_sources locale_source_priority.inject([]) do |res, name| res << locale_priority(name) res end end def locale_priority name case name.to_sym when :param params[:locale] when :domain extract_locale_from_tld # http://en.wikipedia.org/wiki/List_of_Internet_top-level_domains when :browser browser_locale # http://www.metamodpro.com/browser-language-codes when :ip ip_country_code when :default I18n.default_locale end end def locale_source_priority WorldFlags.locale_source_priority end # Get locale from top-level domain or return nil if such locale is not available # You have to put something like: # 127.0.0.1 application.com # 127.0.0.1 application.it # 127.0.0.1 application.pl # in your /etc/hosts file to try this out locally def extract_locale_from_tld I18n.available_locales.include?(parsed_locale.to_sym) ? parsed_locale : nil end def parsed_locale WorldFlags.domain_to_locale(parsed_domain) end def parsed_domain request.host.split('.').last end end end end