change locale and default locale

Gemfile

@@ -63,6 +63,7 @@ group :development do
   gem 'brakeman'
   gem 'hirb'
   gem "powder"
+  gem 'debugger'
 end
 
 group :test do

app/controllers/goldencobra/articles_controller.rb

@@ -74,8 +74,12 @@ def show
     end
 
     def switch_language
-      I18n.locale = params[:locale] || session[:locale]
-      session[:locale] = I18n.locale
+      if params[:locale].present?
+        I18n.locale = params[:locale]
+        session[:locale] = I18n.locale.to_s
+      else
+        I18n.locale = session[:locale]
+      end
       if params[:redirect_to].present?
         redirect_to params[:redirect_to]
       else
@@ -109,7 +113,7 @@ def verify_token
 
     def get_article
       if is_startpage?
-        I18n.locale = :de
+        I18n.locale = I18n.default_locale
         @article = Goldencobra::Article.active.startpage.first
       else
         begin
@@ -293,11 +297,9 @@ def geocode_ip_address
           if session[:user_location].blank?
             #Geokit::Geocoders::MultiGeocoder.geocode("194.39.218.11") schlägt fehl (Completed 500 Internal Server Error) daher...
             begin
-                @ip_result = Geokit::Geocoders::MultiGeocoder.geocode(request.remote_ip)
-                session[:user_location] = @ip_result
+              @ip_result = Geokit::Geocoders::MultiGeocoder.geocode(request.remote_ip)
+              session[:user_location] = @ip_result
             rescue Exception => e
-              logger.error("***********")
-              logger.error(e)
               @ip_result = nil
             end
             if @ip_result.present? && @ip_result.city.present?

lib/goldencobra/engine.rb

@@ -31,17 +31,14 @@ class Engine < ::Rails::Engine
     isolate_namespace Goldencobra
     initializer "goldencobra.load_app_instance_data" do |app|
       #app.class.configure do
-      #  #Pull in all the migrations from goldencobra to the application
-      #  config.paths['db/migrate'] += Goldencobra::Engine.paths['db/migrate'].existent
+        #call some action
       #end
     end
 
     initializer("goldencobra.locales") do |app|
-      #tracking_logger = Logger.new(app.root.join('log', "my_engine_log.log"), 10, 30*1024*1024)
       Goldencobra::Engine.config.i18n.load_path += Dir[root.join('config', 'locales', '*.{rb,yml}').to_s]
-      Goldencobra::Engine.config.i18n.default_locale = :de
-      Goldencobra::Engine.config.i18n.fallbacks = [:en]
-      #tracking_logger.debug "MyEngine::Engine specific locale settings are set. Def locale == :ru\n\n"
+      #Goldencobra::Engine.config.i18n.default_locale = :de
+      #Goldencobra::Engine.config.i18n.fallbacks = [:en]
     end
 
     config.to_prepare do

test/dummy/app/views/layouts/application.html.erb

@@ -16,7 +16,10 @@
 
 
 
-  <%= I18n.locale %>
+  Default Locale: <%= I18n.default_locale %>
+  Locale: <%= I18n.locale %>
+  Session: <%= session[:locale] %>
+  <br>
   <%= link_to "Deutsch", switch_language_path("de") %>
   <%= link_to "Englisch", switch_language_path("en") %>
 

test/dummy/config/application.rb

@@ -70,8 +70,8 @@ class Application < Rails::Application
         I18n.reload!
         self.reload_routes!
       end
+        Rails.logger.warn("==== Locale #{I18n.locale}")
     end
-
   end
 end
 

test/dummy/config/environments/development.rb

@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 Dummy::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
@@ -35,7 +37,7 @@
   # Expands the lines which load the assets
   config.assets.debug = true
   config.action_mailer.default_url_options = { :host => 'localhost:3000' }
-  config.i18n.default_locale = :de
-   config.i18n.locale = :de
+  config.i18n.default_locale = :en
+  config.i18n.locale = :en
   config.time_zone = 'Berlin'
 end

test/dummy/config/initializers/active_admin.rb

@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 ActiveAdmin.setup do |config|
   #if ActiveAdmin::VERSION == "0.3.4" && Rails.version == "3.2.0.rc2"
   #  class ActiveSupport::FileUpdateChecker