[refs #105] Add internationalization support to project

app/controllers/application_controller.rb

@@ -1,8 +1,10 @@
 # coding: UTF-8
 class ApplicationController < ActionController::Base
   protect_from_forgery
+
   layout :layout_by_resource
 
+  before_filter :set_locale
   before_filter lambda { EventLog.current_controller = self },
                 :only => [:create, :destroy, :open_id, :auto_build, :cancel, :publish, :change_visibility] # :update
   after_filter lambda { EventLog.current_controller = nil }
@@ -14,26 +16,39 @@ class ApplicationController < ActionController::Base
   end
   
   protected
-    def get_owner
+
+  def set_locale
+    I18n.locale = extract_locale_from_request
+  end
+
+  def extract_locale_from_request
+    get_user_locale || request.env['HTTP_ACCEPT_LANGUAGE'].to_sym || :en
+  end
+
+  def get_user_locale
+    user_signed_in? ? current_user.language : nil
+  end
+
+  def get_owner
 #      params['user_id'] && User.find_by_id(params['user_id']) ||
 #      params['group_id'] && Group.find_by_id(params['group_id']) || current_user
-      if self.class.method_defined? :parent
-        if parent and (parent.is_a? User or parent.is_a? Group)
-          return parent
-        else
-         return current_user
-        end
+    if self.class.method_defined? :parent
+      if parent and (parent.is_a? User or parent.is_a? Group)
+        return parent
       else
-        params['user_id'] && User.find_by_id(params['user_id']) ||
-        params['group_id'] && Group.find_by_id(params['group_id']) || current_user
+       return current_user
       end
+    else
+      params['user_id'] && User.find_by_id(params['user_id']) ||
+      params['group_id'] && Group.find_by_id(params['group_id']) || current_user
     end
+  end
 
-    def layout_by_resource
-      if devise_controller?
-        "sessions"
-      else
-        "application"
-      end
+  def layout_by_resource
+    if devise_controller?
+      "sessions"
+    else
+      "application"
     end
+  end
 end

app/models/user.rb

@@ -1,5 +1,6 @@
 class User < ActiveRecord::Base
   ROLES = ['admin']
+  LANGUAGES = [['Russian', 'ru'], ['English', 'en']]
 
   devise :database_authenticatable, :registerable, :omniauthable, # :token_authenticatable, :encryptable, :timeoutable
          :recoverable, :rememberable, :validatable #, :trackable, :confirmable, :lockable
@@ -29,7 +30,7 @@ class User < ActiveRecord::Base
   validates :ssh_key, :uniqueness => true, :allow_blank => true
   validates :role, :inclusion => {:in => ROLES}, :allow_blank => true
 
-  attr_accessible :email, :password, :password_confirmation, :remember_me, :login, :name, :ssh_key, :uname
+  attr_accessible :email, :password, :password_confirmation, :remember_me, :login, :name, :ssh_key, :uname, :language
   attr_readonly :uname
   attr_accessor :login
 

app/views/devise/registrations/edit.html.haml

@@ -39,6 +39,12 @@
           - else
             = resource.role
 
+      .group.wat-cf
+        .left
+          = f.label :language, :class => "label"
+        .right
+          = f.select :language, User::LANGUAGES
+
       / .group.wat-cf
       /   .left
       /     = f.label :current_password, :class => "label"

app/views/devise/registrations/new.html.haml

@@ -37,6 +37,12 @@
           .right
             = f.password_field :password_confirmation, :class => "text_field"
 
+      .group.wat-cf
+        .left
+          = f.label :language, :class => "label"
+        .right
+          = f.select :language, User::LANGUAGES
+
       .group.navform.wat-cf
         %button.button{ :type => "submit" }
           #{image_tag("web-app-theme/icons/tick.png", :alt => t("devise.registrations.sign_up_header"))} #{t("devise.registrations.sign_up_header")}

config/locales/ru.yml

@@ -648,6 +648,7 @@ ru:
         created_at: Создан
         updated_at: Обновлен
         role: Роль в системе
+        language: Язык
 
       product_build_list:
         id: Id

db/migrate/20120117110723_add_language_to_users.rb

@@ -0,0 +1,9 @@
+class AddLanguageToUsers < ActiveRecord::Migration
+  def self.up
+    add_column :users, :language, :string, :default => 'en'
+  end
+
+  def self.down
+    remove_column :users, :language
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120113151305) do
+ActiveRecord::Schema.define(:version => 20120117110723) do
 
   create_table "arches", :force => true do |t|
     t.string   "name",       :null => false
@@ -294,9 +294,9 @@ ActiveRecord::Schema.define(:version => 20120113151305) do
 
   create_table "users", :force => true do |t|
     t.string   "name"
-    t.string   "email",                               :default => "", :null => false
-    t.string   "encrypted_password",   :limit => 128, :default => "", :null => false
-    t.string   "password_salt",                       :default => "", :null => false
+    t.string   "email",                               :default => "",   :null => false
+    t.string   "encrypted_password",   :limit => 128, :default => "",   :null => false
+    t.string   "password_salt",                       :default => "",   :null => false
     t.string   "reset_password_token"
     t.string   "remember_token"
     t.datetime "remember_created_at"
@@ -305,6 +305,7 @@ ActiveRecord::Schema.define(:version => 20120113151305) do
     t.text     "ssh_key"
     t.string   "uname"
     t.string   "role"
+    t.string   "language",                            :default => "en"
   end
 
   add_index "users", ["email"], :name => "index_users_on_email", :unique => true