sdrew · November 29, 2012 20:34 · Nov 29, 2012 · Oct 20, 2012
diff --git a/gistfile1.rb b/gistfile1.rb
@@ -1,4 +1,3 @@
-
 def set_locale
    locale = params[:locale].to_s
 

diff --git a/routes.rb b/routes.rb
@@ -0,0 +1,3 @@
+scope "(:locale)", locale: /en|es|fr/ do
+  # routes
+end
diff --git a/gistfile1.rb b/gistfile1.rb
@@ -0,0 +1,21 @@
+
+def set_locale
+   locale = params[:locale].to_s
+
+   if !locale.blank?
+     cookies[:preferred_lang] = { :value => locale, :expires => 10.years.from_now }
+     session[:update_lang] = locale  # remember preferred setting for this session
+   else
+     locale = cookies[:preferred_lang]
+   end
+
+   preferred = (locale.blank? ? request.user_preferred_languages : [locale]).map{|l| l.downcase.strip }
+
+   best_match = preferred.find do |lang|
+     AVAILABLE_LOCALES.include? lang                         # de-AT etc.
+   end or preferred.map{|l| l[0..1] }.uniq.find do |lang|
+     AVAILABLE_LOCALES.include? lang                         # en, de, etc.
+   end or "en"                                               # fall back to en if unknown
+
+   I18n.locale = best_match
+end