Use carmen to translate available_countries helper

core/app/helpers/spree/base_helper.rb

@@ -1,3 +1,5 @@
+require 'carmen'
+
 module Spree
  module BaseHelper
  def link_to_cart(text = nil)
@@ -113,8 +115,14 @@ def available_countries
  countries = Country.all
  end
 
+ country_names = Carmen::Country.all.map do |country|
+ [country.code, country.name]
+ end.to_h
+
+ country_names.update I18n.t('spree.country_names', default: {}).stringify_keys
+
  countries.collect do |country|
- country.name = t(country.iso, scope: 'spree.country_names', default: country.name)
+ country.name = country_names.fetch(country.iso, country.name)
  country
  end.sort_by { |c| c.name.parameterize }
  end

core/lib/spree/core/controller_helpers/common.rb

@@ -1,3 +1,5 @@
+require 'carmen'
+
 module Spree
  module Core
  module ControllerHelpers
@@ -49,6 +51,7 @@ def set_user_language
  locale ||= Rails.application.config.i18n.default_locale
  locale ||= I18n.default_locale
  I18n.locale = locale
+ Carmen.i18n_backend.locale = locale
  end
 
  # Returns which layout to render.

core/spec/helpers/base_helper_spec.rb

@@ -20,6 +20,10 @@
  it "return complete list of countries" do
  expect(available_countries.count).to eq(Spree::Country.count)
  end
+
+ it "uses locales for country names" do
+ expect(available_countries).to include(having_attributes(name: "United States of America"))
+ end
  end
 
  context "with a checkout zone defined" do