Rails: Twitter Auth by 0Auth (detail)

$ vim Gemfile
 10
 11 gem 'omniauth'
 12 gem 'omniauth-twitter'
 13 gem 'twitter'
 14

$ vim config/initializers/omniauth.rb

 17 

 18 Rails.application.config.middleware.use OmniAuth::Builder do

 19   provider :twitter, 'TWITTER_CONSUMER_KEY', 'TWITTER_CONSUMER_SECURET',

 20         :request_path => 'sign_in', :callback_path => 'sign_in/callback'

 21 end

 22 

$ vim config/routes.rb

 25 

 26 get '/auth/:provider/callback'=>'sessions#create'

 27 

$ rails g controller sessions

$ vim sessions_controller.rb 

 32 

 33 class SessionsController < ApplicationController                            

 34   def create

 35    raise request.env["omniauth.auth"].to_yaml

 36   end

 37 end

 38 

$ rails g model usertwitter provider:string uid:string name:string

  

$ vim controller/usertwitter.rb

 50   class SessionsController < ApplicationController                                

 51       def create

 52           auth = request.env["omniauth.auth"]

 53           user = Usertwitter.find_by_provider_and_uid(auth["provider"], au    th["uid"]) 

 54           || Usertwitter.create_with_omniauth(auth)

 55           session[:user_id] = user.id

 56   

 57          redirect_to '/' , :notice => "Signed in!"

 58       end

 59   end

$ vim model/usertwitter.rb

 63     def self.create_with_omniauth(auth)

 64      create!do |usertwitter|

 65        usertwitter.provider = auth["provider"]

 66        usertwitter.uid = auth["uid"]

 67        usertwitter.name = auth["name"]

 68      end

 69    end

$ vim controllers/twines.rb

 80     before_filter :authenticate

 81 

 82       def authenticate

 83          auth = request.env["omniauth.auth"]

 84           redirect_to '/' unless current_user

 85      end

 ***Twitter Service Setting

 42 https://dev.twitter.com/

 43 Product → Login with Twitter

 44 Manage Your Apps