Rails4：deviseとomniauthでTwitterログイン機能を実装する（その2）

4. 認証用の画面を作成する

$ rails g devise:views
Warning: Running `gem pristine --all` to regenerate your installed gemspecs (and deleting then reinstalling your bundle if you use bundle --path) will improve the startup performance of Spring.
      invoke  Devise::Generators::SharedViewsGenerator
      create    app/views/devise/shared
      create    app/views/devise/shared/_links.erb
      invoke  form_for
      create    app/views/devise/confirmations
      create    app/views/devise/confirmations/new.html.erb
      create    app/views/devise/passwords
      create    app/views/devise/passwords/edit.html.erb
      create    app/views/devise/passwords/new.html.erb
      create    app/views/devise/registrations
      create    app/views/devise/registrations/edit.html.erb
      create    app/views/devise/registrations/new.html.erb
      create    app/views/devise/sessions
      create    app/views/devise/sessions/new.html.erb
      create    app/views/devise/unlocks
      create    app/views/devise/unlocks/new.html.erb
      invoke  erb
      create    app/views/devise/mailer
      create    app/views/devise/mailer/confirmation_instructions.html.erb
      create    app/views/devise/mailer/reset_password_instructions.html.erb
      create    app/views/devise/mailer/unlock_instructions.html.erb

5. 認証用のモデルを作成する

$ rails g devise user
Warning: Running `gem pristine --all` to regenerate your installed gemspecs (and deleting then reinstalling your bundle if you use bundle --path) will improve the startup performance of Spring.
      invoke  active_record
      create    db/migrate/20140804112353_devise_create_users.rb
      create    app/models/user.rb
      invoke    test_unit
      create      test/models/user_test.rb
      create      test/fixtures/users.yml
      insert    app/models/user.rb
      route  devise_for :users

auth認証に必要なカラムを追加する

$ rails g migration AddTwitterFieldsToUsers name:string provider:string uid:string access_token:string
Warning: Running `gem pristine --all` to regenerate your installed gemspecs (and deleting then reinstalling your bundle if you use bundle --path) will improve the startup performance of Spring.
      invoke  active_record
      create    db/migrate/20140804112607_add_twitter_fields_to_users.rb

access_tokenとかいるのかな...

$ rake db:migrate
== 20140804112353 DeviseCreateUsers: migrating ================================
-- create_table(:users)
   -> 0.0026s
-- add_index(:users, :email, {:unique=>true})
   -> 0.0006s
-- add_index(:users, :reset_password_token, {:unique=>true})
   -> 0.0005s
== 20140804112353 DeviseCreateUsers: migrated (0.0039s) =======================

== 20140804112607 AddTwitterFieldsToUsers: migrating ==========================
-- add_column(:users, :name, :string)
   -> 0.0005s
-- add_column(:users, :provider, :string)
   -> 0.0002s
-- add_column(:users, :uid, :string)
   -> 0.0002s
-- add_column(:users, :access_token, :string)
   -> 0.0002s
== 20140804112607 AddTwitterFieldsToUsers: migrated (0.0013s) =================

6. User モデルを編集する

omniauthableを追加する。
trackableとomniauthable以外は使わないので、他はコメントアウトしておいたほうが良いかも。

# app/models/user.rb
devise :database_authenticatable, :omniauthable, :recoverable, :registerable, :rememberable, :trackable, :validatable 

続きは次回〜（　´∀｀）