refactor locale initialization and selection a bit

app/controllers/application_controller.rb

@@ -71,6 +71,7 @@ def set_locale
     else
       locale = request.preferred_language_from AVAILABLE_LANGUAGE_CODES
       locale ||= request.compatible_language_from AVAILABLE_LANGUAGE_CODES
+      locale ||= DEFAULT_LANGUAGE
       I18n.locale = locale
     end
   end

app/helpers/language_helper.rb

@@ -26,6 +26,6 @@ def direction_for(string)
   end
 
   def rtl?
-    @rtl ||= RTL_LANGUAGES.include? I18n.locale
+    @rtl ||= RTL_LANGUAGES.include? I18n.locale.to_s
   end
 end

config/environment.rb

@@ -16,21 +16,6 @@ def sqlite?
 Haml::Template.options[:format] = :html5
 Haml::Template.options[:escape_html] = true
 
-if File.exists?(File.expand_path("./config/locale_settings.yml"))
-  locale_settings = YAML::load(File.open(File.expand_path("./config/locale_settings.yml")))
-  AVAILABLE_LANGUAGES = (locale_settings['available'].length > 0) ? locale_settings['available'] : { :en => 'English' }
-  DEFAULT_LANGUAGE = (AVAILABLE_LANGUAGES.include?(locale_settings['default'])) ? locale_settings['default'] : AVAILABLE_LANGUAGES.keys[0].to_s
-  AVAILABLE_LANGUAGE_CODES = locale_settings['available'].keys.map { |v| v.to_s }
-  LANGUAGE_CODES_MAP = locale_settings['fallbacks']
-  RTL_LANGUAGES = locale_settings['rtl']
-else
-  AVAILABLE_LANGUAGES = { :en => 'English' }
-  DEFAULT_LANGUAGE = 'en'
-  AVAILABLE_LANGUAGE_CODES = ['en']
-  LANGUAGE_CODES_MAP = {}
-  RTL_LANGUAGES = []
-end
-
 # Blacklist of usernames
 USERNAME_BLACKLIST = ['admin', 'administrator', 'hostmaster', 'info', 'postmaster', 'root', 'ssladmin', 
   'ssladministrator', 'sslwebmaster', 'sysadmin', 'webmaster', 'support', 'contact', 'example_user1dsioaioedfhgoiesajdigtoearogjaidofgjo']

config/environments/production.rb

@@ -46,9 +46,6 @@
   # Disable delivery errors, bad email addresses will be ignored
   # config.action_mailer.raise_delivery_errors = false
 
-  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
-  # the I18n.default_locale when a translation can not be found)
-  config.i18n.fallbacks = true
   config.threadsafe!
 end
 

config/environments/staging.rb

@@ -43,9 +43,6 @@
   # Disable delivery errors, bad email addresses will be ignored
   # config.action_mailer.raise_delivery_errors = false
 
-  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
-  # the I18n.default_locale when a translation can not be found)
-  config.i18n.fallbacks = true
   config.threadsafe!
 end
 

config/initializers/locale.rb

@@ -3,31 +3,36 @@
 #   the COPYRIGHT file.
 
 require 'i18n_interpolation_fallbacks'
+require "i18n/backend/fallbacks" 
+
+
+if File.exists?(File.expand_path("./config/locale_settings.yml"))
+  locale_settings = YAML::load(File.open(File.expand_path("./config/locale_settings.yml")))
+  AVAILABLE_LANGUAGES = (locale_settings['available'].length > 0) ? locale_settings['available'] : { "en" => 'English' }
+  AVAILABLE_LANGUAGE_CODES = locale_settings['available'].keys
+  DEFAULT_LANGUAGE = (AVAILABLE_LANGUAGE_CODES.include?(locale_settings['default'].to_s)) ? locale_settings['default'].to_s : "en"
+  LANGUAGE_CODES_MAP = locale_settings['fallbacks']
+  RTL_LANGUAGES = locale_settings['rtl']
+else
+  AVAILABLE_LANGUAGES = { "en" => 'English' }
+  DEFAULT_LANGUAGE = "en"
+  AVAILABLE_LANGUAGE_CODES = ["en"]
+  LANGUAGE_CODES_MAP = {}
+  RTL_LANGUAGES = []
+end
+
 
 # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
 I18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}')]
 I18n.default_locale = DEFAULT_LANGUAGE
 
 I18n::Backend::Simple.send(:include, I18n::Backend::InterpolationFallbacks)
-
 I18n::Backend::Simple.send(:include, I18n::Backend::Fallbacks)
+
 AVAILABLE_LANGUAGE_CODES.each do |c|
+  I18n.fallbacks[c] = [c]
   if LANGUAGE_CODES_MAP.key?(c)
-    I18n.fallbacks[c.to_sym] = LANGUAGE_CODES_MAP[c]
-    I18n.fallbacks[c.to_sym].concat([c.to_sym, DEFAULT_LANGUAGE.to_sym, :en])
-  else
-    I18n.fallbacks[c.to_sym] = [c.to_sym, DEFAULT_LANGUAGE.to_sym, :en]
-  end
-end
-
-# There's almost certainly a better way to do this.
-# Maybe by loading our paths in the initializer hooks, they'll end up after the gem paths?
-class I18n::Railtie
-  class << self
-    def initialize_i18n_with_path_cleanup *args
-      initialize_i18n_without_path_cleanup *args
-      I18n.load_path.reject!{|path| path.match(/devise_invitable/) }
-    end
-    alias_method_chain :initialize_i18n, :path_cleanup
+    I18n.fallbacks[c].concat(LANGUAGE_CODES_MAP[c])
   end
+  I18n.fallbacks[c].concat([DEFAULT_LANGUAGE, "en"])
 end

config/locale_settings.yml

@@ -62,45 +62,45 @@ available:
 
 fallbacks:
   en-GB:
-    - :en
+    - "en"
   en-US:
-    - :en
+    - "en"
   en_shaw:
-    - :en
-    - :en-GB
-    - :en-US
+    - "en"
+    - "en-GB"
+    - "en-US"
   en_pirate:
-    - :en
-    - :en-GB
-    - :en-US
+    - "en"
+    - "en-GB"
+    - "en-US"
   en_1337:
-    - :en
-    - :en-GB
-    - :en-US
+    - "en"
+    - "en-GB"
+    - "en-US"
   sv:
-    - :sv-SE
+    - "sv-SE"
   he:
-    - :he-IL
+    - "he-IL"
   es-AR:
-    - :es
+    - "es"
   es-CL:
-    - :es
+    - "es"
   es-MX:
-    - :es
+    - "es"
   gl:
-    - :gl-ES
+    - "gl-ES"
   zh:
-    - :zh-CN
-    - :zh-TW
+    - "zh-CN"
+    - "zh-TW"
   ur-PK:
-    - :ur
+    - "ur"
   de_formal:
-    - :de
+    - "de"
 
 
 rtl:
-  - :ar
-  - :he
-  - :ur
-  - :ur-PK
-  - :ms
+  - "ar"
+  - "he"
+  - "ur"
+  - "ur-PK"
+  - "ms"