JakubOboza/Gemfile

## application.html.erb
<body>

<div id="fb-root"></div>

<script src="http://connect.facebook.net/en_US/all.js">
</script>

<script type="text/javascript">
   FB.init({
      appId: "271615169549029",
      cookie: true,
      status: true,
      xfbml: true
   });
</script>

<p class="notice"><%= notice %></p>
<p class="alert"><%= alert %></p>

<% if current_user -%>
  <%= link_to_function "logout [#{current_user.name}]", 'App.logout()' %>
<% else -%>
  <%= link_to "Sign in with Facebook", user_omniauth_authorize_path(:facebook) %>
<% end %>

<%= yield %>

</body>

## bash
rails generate devise:install
rails generate devise User

rails generate rspec:install
rails generate cucumber:install --capybara --rspec

## devise.rb
  config.sign_out_via = :get

  config.omniauth :facebook, 'APP_ID', 'APP_SECRET'

## devise_helpers.rb
#spec/support/devise_helpers.rb

RSpec.configure do |config|
  config.include Devise::TestHelpers, :type => :controller
end

## Gemfile
gem 'devise', '1.5.0'
gem 'omniauth-facebook', :git => "git://github.com/mkdynamic/omniauth-facebook.git"

gem 'rspec-rails', :group => [:development, :test]

group :test do
  # Pretty printed test output
  gem 'turn', '< 0.8.3', :require => false
  gem 'cucumber-rails'
  gem 'capybara'
  gem 'database_cleaner'
  gem 'factory_girl_rails'
  gem 'faker'
end

## home.js.coffee
# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/
@App =
  subscribeToFBSessionChange: ->
    FB.Event.subscribe('auth.sessionChange', (response) ->
      if response.session
      # A user has logged in, and a new cookie has been saved
      else
      # The user has logged out, and the cookie has been cleared
        App.clearSession()
    )
  clearSession: ->
    window.location = '/users/sign_out'
  logout: ->
    FB.getLoginStatus((response) ->
      FB.logout() if response.status == 'connected'
    )
    App.clearSession()

$ ->
  # Initialization code goes here
  App.subscribeToFBSessionChange()

## omniauth_callbacks_controller.rb
class OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def facebook
    auth = request.env["omniauth.auth"]
    user = User.find_by_provider_and_uid(auth["provider"], auth["uid"]) || User.create_with_omniauth(auth)
    flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
    sign_in_and_redirect user, :event => :authentication
  end
end

## routes.rb
devise_for :users, :controllers => { :omniauth_callbacks => "omniauth_callbacks" }

## user.rb
class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :omniauthable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me

  def self.create_with_omniauth(auth)
    create! do |user|
      user.provider = auth["provider"]
      user.uid = auth["uid"]
      user.name = auth["info"]["name"]
    end
  end

end

## xxx_create_users.rb
class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :provider, :null => false
      t.string :uid, :null => false
      t.string :name, :null => false
      t.database_authenticatable
      t.timestamps
    end
  end
end
	<body>

	<div id="fb-root"></div>

	<script src="http://connect.facebook.net/en_US/all.js">
	</script>

	<script type="text/javascript">
	FB.init({
	appId: "271615169549029",
	cookie: true,
	status: true,
	xfbml: true
	});
	</script>

	<p class="notice"><%= notice %></p>
	<p class="alert"><%= alert %></p>

	<% if current_user -%>
	<%= link_to_function "logout [#{current_user.name}]", 'App.logout()' %>
	<% else -%>
	<%= link_to "Sign in with Facebook", user_omniauth_authorize_path(:facebook) %>
	<% end %>

	<%= yield %>

	</body>
	rails generate devise:install
	rails generate devise User

	rails generate rspec:install
	rails generate cucumber:install --capybara --rspec
	config.sign_out_via = :get

	config.omniauth :facebook, 'APP_ID', 'APP_SECRET'
	#spec/support/devise_helpers.rb

	RSpec.configure do \|config\|
	config.include Devise::TestHelpers, :type => :controller
	end
	gem 'devise', '1.5.0'
	gem 'omniauth-facebook', :git => "git://github.com/mkdynamic/omniauth-facebook.git"

	gem 'rspec-rails', :group => [:development, :test]

	group :test do
	# Pretty printed test output
	gem 'turn', '< 0.8.3', :require => false
	gem 'cucumber-rails'
	gem 'capybara'
	gem 'database_cleaner'
	gem 'factory_girl_rails'
	gem 'faker'
	end
	# Place all the behaviors and hooks related to the matching controller here.
	# All this logic will automatically be available in application.js.
	# You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/
	@App =
	subscribeToFBSessionChange: ->
	FB.Event.subscribe('auth.sessionChange', (response) ->
	if response.session
	# A user has logged in, and a new cookie has been saved
	else
	# The user has logged out, and the cookie has been cleared
	App.clearSession()
	)
	clearSession: ->
	window.location = '/users/sign_out'
	logout: ->
	FB.getLoginStatus((response) ->
	FB.logout() if response.status == 'connected'
	)
	App.clearSession()

	$ ->
	# Initialization code goes here
	App.subscribeToFBSessionChange()
	class OmniauthCallbacksController < Devise::OmniauthCallbacksController
	def facebook
	auth = request.env["omniauth.auth"]
	user = User.find_by_provider_and_uid(auth["provider"], auth["uid"]) \|\| User.create_with_omniauth(auth)
	flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
	sign_in_and_redirect user, :event => :authentication
	end
	end
	class User < ActiveRecord::Base
	# Include default devise modules. Others available are:
	# :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
	devise :database_authenticatable, :omniauthable

	# Setup accessible (or protected) attributes for your model
	attr_accessible :email, :password, :password_confirmation, :remember_me

	def self.create_with_omniauth(auth)
	create! do \|user\|
	user.provider = auth["provider"]
	user.uid = auth["uid"]
	user.name = auth["info"]["name"]
	end
	end

	end
	class CreateUsers < ActiveRecord::Migration
	def change
	create_table :users do \|t\|
	t.string :provider, :null => false
	t.string :uid, :null => false
	t.string :name, :null => false
	t.database_authenticatable
	t.timestamps
	end
	end
	end