/authlogic_facebook_connect

Extension of the Authlogic library to add Facebook Connect support built upon the excellent facebooker gem

Primary LanguageRuby

Install and use ↑

1. Install the facebooker gem and make Rails use it ↑

$ sudo gem install facebooker

Make sure that you have setup you config/facebooker.yml to match your facebook application, make you application depended on the facebooker gem

config.gem "facebooker"

and run the xd_receiver generator to create the cross domain scripting bridge to make it possible for your application to communicate with facebook

$ script/generate xd_receiver

For more information on the facebooker gem checkout it’s readme github.com/mmangino/facebooker/tree/master

2. Install the Authlogic Facebook Connect plugin ↑

$ script/plugin install git://github.com/kalasjocke/authlogic_facebook_connect.git

This plugin should soon be packed inside a gem.

3. Make some changes to your database ↑

class AddFacebookConnectFieldsToUser < ActiveRecord::Migration
  def self.up
    add_column :users, :name, :string
    add_column :users, :facebook_uid, :integer, :limit => 8
  end

  def self.down
    remove_column :users, :facebook_uid
    remove_column :users, :name
  end
end

4. Make your layout look something like this ↑

The important parts are the facebook html namespace, facebook javascript include and the facebook helper calls to init the facebooker gem.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
  <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
  <title>Your awsome facebook connected app</title>

  <%= stylesheet_link_tag 'application' %>
  <%= javascript_include_tag :defaults %>

  <script src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php" type="text/javascript"></script>
</head>
<body>

<p style="color: green"><%= flash[:notice] %></p>

<%= fb_connect_javascript_tag %>
<%= init_fb_connect "XFBML" %>

<%= yield %>

</body>
</html>

5. Add the Facebook Connect button to your login form ↑

<%= authlogic_facebook_login_button %>

Notes ↑

If you want to save some user data when connecting to facebook you can use the before_connect hook in your user model.

def before_connect(facebook_session)
  self.name = facebook_session.user.name
end

For more information about what you can get form the facebook_session checkout the Facebooker gem rdoc.