diff options
3 files changed, 125 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/railtie.rb b/activesupport/lib/active_support/railtie.rb index b8d54ff839..0243157e35 100644 --- a/activesupport/lib/active_support/railtie.rb +++ b/activesupport/lib/active_support/railtie.rb @@ -33,6 +33,7 @@ module I18n config.i18n = ActiveSupport::OrderedOptions.new config.i18n.railties_load_path = [] config.i18n.load_path = [] + config.i18n.fallbacks = ActiveSupport::OrderedOptions.new initializer "i18n.initialize" do ActiveSupport.on_load(:i18n) do @@ -53,6 +54,8 @@ module I18n app.config.i18n.load_path.unshift(*value) when :load_path I18n.load_path += value + when :fallbacks + init_fallbacks(value) if value && validate_fallbacks(value) else I18n.send("#{setting}=", value) end @@ -60,5 +63,37 @@ module I18n I18n.reload! end + + class << self + protected + + def init_fallbacks(fallbacks) + include_fallbacks_module + args = case fallbacks + when ActiveSupport::OrderedOptions + [*(fallbacks[:defaults] || []) << fallbacks[:map]].compact + when Hash, Array + Array.wrap(fallbacks) + else # TrueClass + [] + end + I18n.fallbacks = I18n::Locale::Fallbacks.new(*args) + end + + def include_fallbacks_module + I18n.backend.class.send(:include, I18n::Backend::Fallbacks) + end + + def validate_fallbacks(fallbacks) + case fallbacks + when ActiveSupport::OrderedOptions + !fallbacks.empty? + when TrueClass, Array, Hash + true + else + raise "Unexpected fallback type #{fallbacks.inspect}" + end + end + end end end
\ No newline at end of file diff --git a/railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt b/railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt index f902120453..b9fb13b640 100644 --- a/railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt +++ b/railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt @@ -39,4 +39,8 @@ # Enable threaded mode # config.threadsafe! + + # 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 end diff --git a/railties/test/railties/i18n_railtie_test.rb b/railties/test/railties/i18n_railtie_test.rb new file mode 100644 index 0000000000..51684aa838 --- /dev/null +++ b/railties/test/railties/i18n_railtie_test.rb @@ -0,0 +1,86 @@ +require "isolation/abstract_unit" + +module RailtiesTest + class I18nRailtieTest < Test::Unit::TestCase + include ActiveSupport::Testing::Isolation + + def setup + build_app + boot_rails + FileUtils.rm_rf("#{app_path}/config/environments") + require "rails/all" + @old_path = I18n.load_path + end + + def teardown + I18n.load_path = @old_path || [] + I18n.backend = nil + end + + def load_app + require "#{app_path}/config/environment" + end + + def assert_fallbacks(fallbacks) + fallbacks.each do |locale, expected| + actual = I18n.fallbacks[locale] + assert_equal expected, actual, "expected fallbacks for #{locale.inspect} to be #{expected.inspect}, but were #{actual.inspect}" + end + end + + def assert_no_fallbacks + assert !I18n.backend.class.included_modules.include?(I18n::Backend::Fallbacks) + end + + test "config.i18n.load_path gets added to I18n.load_path" do + I18n.load_path = ['existing/path/to/locales'] + I18n::Railtie.config.i18n.load_path = ['new/path/to/locales'] + load_app + + assert I18n.load_path.include?('existing/path/to/locales') + assert I18n.load_path.include?('new/path/to/locales') + end + + test "not using config.i18n.fallbacks does not initialize I18n.fallbacks" do + I18n.backend = Class.new { include I18n::Backend::Base }.new # can't uninclude modules, so use a tmp backend class + load_app + assert_no_fallbacks + end + + test "config.i18n.fallbacks = true initializes I18n.fallbacks with default settings" do + I18n::Railtie.config.i18n.fallbacks = true + load_app + assert_fallbacks :de => [:de, :en] + end + + test "config.i18n.fallbacks.defaults = [:'en-US'] initializes fallbacks with en-US as a fallback default" do + I18n::Railtie.config.i18n.fallbacks.defaults = [:'en-US'] + load_app + assert_fallbacks :de => [:de, :'en-US', :en] + end + + test "config.i18n.fallbacks.map = { :ca => :'es-ES' } initializes fallbacks with a mapping ca => es-ES" do + I18n::Railtie.config.i18n.fallbacks.map = { :ca => :'es-ES' } + load_app + assert_fallbacks :ca => [:ca, :"es-ES", :es, :en] + end + + test "[shortcut] config.i18n.fallbacks = [:'en-US'] initializes fallbacks with en-US as a fallback default" do + I18n::Railtie.config.i18n.fallbacks = [:'en-US'] + load_app + assert_fallbacks :de => [:de, :'en-US', :en] + end + + test "[shortcut] config.i18n.fallbacks = [{ :ca => :'es-ES' }] initializes fallbacks with a mapping de-AT => de-DE" do + I18n::Railtie.config.i18n.fallbacks.map = { :ca => :'es-ES' } + load_app + assert_fallbacks :ca => [:ca, :"es-ES", :es, :en] + end + + test "[shortcut] config.i18n.fallbacks = [:'en-US', { :ca => :'es-ES' }] initializes fallbacks with the given arguments" do + I18n::Railtie.config.i18n.fallbacks = [:'en-US', { :ca => :'es-ES' }] + load_app + assert_fallbacks :ca => [:ca, :"es-ES", :es, :'en-US', :en] + end + end +end
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