Bind vkontakte authentication to your authlogic project.

script/plugin install authlogic_vkontakte

Run rake task to init resources (javascripts and other)

rake vkontakte:init

Edit vkontakte.yml file in your project directory

vk_app_id: <YOUR_APP_ID>
vk_app_password: <YOUR_PASSWORD>

Create migration like this one:

class AddVkontakteIdToUser < ActiveRecord::Migration
  def self.up
    add_column :users, :vk_id, :string
  end

  def self.down
   remove_column :users, :vk_id
  end
end

Add “vontakte_authentication” to your User model

class User < ActiveRecord::Base
    vkontakte_authentication
end

And a little requirement now - jQuery (see vkontakte.js) for posting to “create” action of UserSessionController. But you can use Ajax.Request if you prefer Prototype. And so, TODO is to create version independent of the javascript framework.

To include javascript file in layout:

<%= vkontakte_javascript_include_tag %>

Creating “vk_api_transport” ‘div’ and initializing OpenAPI:

<%= vkontakte_init_tag %>

To add Vkontakte button to your page, simply write this in view:

<%= vk_login_button %>

or, in haml

= vk_login_button

In your controller (UserSession):

def create
  @user_session = UserSession.new(params[:status] ? cookies : params[:user_session])
  if @user_session.save
    ..

…and you’re in Vkontakte!