add auth token for users

app/models/user.rb

 class User < ActiveRecord::Base
   # Include default devise modules. Others available are:
   # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
-  devise :database_authenticatable,
+  devise :database_authenticatable, :token_authenticatable,
          :recoverable, :rememberable, :trackable, :validatable
 
   # Setup accessible (or protected) attributes for your model
@@ -25,6 +25,7 @@ class User < ActiveRecord::Base
     :foreign_key => :assignee_id,
     :dependent => :destroy
 
+  before_create :ensure_authentication_token
   scope :not_in_project, lambda { |project|  where("id not in (:ids)", :ids => project.users.map(&:id) ) }
 
   def identifier

config/initializers/devise.rb

@@ -158,11 +158,11 @@ Devise.setup do |config|
 
   # ==> Configuration for :token_authenticatable
   # Defines name of the authentication token params key
-  # config.token_authentication_key = :auth_token
+  config.token_authentication_key = :private_token
 
   # If true, authentication through token does not store user in session and needs
   # to be supplied on each request. Useful if you are using the token as API token.
-  # config.stateless_token = false
+  config.stateless_token = true
 
   # ==> Scopes configuration
   # Turn scoped views on. Before rendering "sessions/new", it will first check for

db/migrate/20111115063954_add_authentication_token_to_users.rb

+class AddAuthenticationTokenToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :authentication_token, :string
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20111111093150) do
+ActiveRecord::Schema.define(:version => 20111115063954) do
 
   create_table "issues", :force => true do |t|
     t.string   "title"
@@ -103,6 +103,7 @@ ActiveRecord::Schema.define(:version => 20111111093150) do
     t.string   "skype",                                 :default => "",    :null => false
     t.string   "linkedin",                              :default => "",    :null => false
     t.string   "twitter",                               :default => "",    :null => false
+    t.string   "authentication_token"
   end
 
   add_index "users", ["email"], :name => "index_users_on_email", :unique => true

spec/models/user_spec.rb

@@ -19,6 +19,11 @@ describe User do
     user.identifier.should == "test_mail.com"
   end
 
+  it "should have authentication token" do
+    user = Factory(:user)
+    user.authentication_token.should_not == ""
+  end
+
   describe "dependent" do
     before do
       @user = Factory :user