Sinatra and friends

Rails to Sinatra What's ready Jiang Wu

Is Mr. Tsuyoshikawa Here? 吉川さんは着たのか。 1/51

『Sinatra 1.0 の世界にようこそ』 2/51

Minimal Eﬀort 最小限の労力 require 'rubygems' require 'sinatra' get '/' do "Hello, world!" end 3/51

It's unfair 不公平 4/51

over one 5/51

The answer is friends 「友達」がカギ 6/51

Sinatra is designed to need friends Sinatraは友達を前提に設計されている No Presets 設定不要 Pure Ruby ピュアRuby Rack-lover Rack好き 7/51

Fight with our friends! 友と闘え！ 8/51

Rack is the best friend Rackは最高の友達 9/51

Middlewares in Sinatra Sinatraでのミドルウェア Rack::Session::Cookie Rack::CommonLogger Rack::MethodOverride 10/51

rack-contrib Rack::Proﬁler Rack::JSON-P Rack::Recaptcha Rack::MailExceptions (and more) 11/51

Rack::Cache 12/51

Rack::URLMap 13/51

Seperate apps by path パスでアプリを分割 # in config.ru map '/blogs' do run App::SimpleBlog end map '/us' do run App::UrlShortener end 14/51

Seperate apps by host ホスト名でアプリを分割 # in config.ru map 'http://blogs.mysite.com/' do run App::SimpleBlog end map 'http://us.mysite.com/' do run App::UrlShortener end 15/51

Directory Structure(1) ディレクトリ構成(1) - multi/ - apps/ | simple_blog_app.rb | url_shortener_app.rb - views/ + simple_blog/ + url_shortener/ | config.ru 16/51

Rack is awesome! Rack最高! 18/51

Some common tasks 基本タスク CRUD Unit Test Authentication Ajax 19/51

CRUD example CRUDの例 Need these friends: 必須の友 shotgun haml sequel 20/51

migration マイグレーション # in 1281789589_create_blogs.rb # touch `date +%s`_create_blogs.rb Sequel.migration do up do create_table(:blogs) do primary_key :id end end end 21/51

run migration マイグレーションの実行 sequel -m migrations -E $DATABASE_URL 22/51

rollback ロールバック # "-M 0" means to rollback all # "-M 0" は全部をロールバックという意味 sequel -m migrations -M 0 -E $DATABASE_URL 23/51

app.rb require 'rubygems' require 'sinatra' require 'blog' get '/blogs/:id' do |id| @blog = Blog[:id => id] haml :article end post '/blogs/?' do @blog = Blog.create(params[:blog]) redirect "/#{@blog.id}" end 24/51

conﬁg.ru require 'app' require 'sequel' DB = Sequel.connect ENV['DATABASE_URL'] class Blog < Sequel::Model end run Sinatra::Application 25/51

run conﬁg.ru conﬁg.ruの実行 ~/workspace/sinatra$ shotgun -s thin == Shotgun/Thin on http://127.0.0.1:9393/ >> Thin web server (v1.2.7 codename No Hup) >> Maximum connections set to 1024 >> Listening on 127.0.0.1:9393, CTRL+C to stop 26/51

Unit Test Need these friends: 必須の友 Rack::MockRequest Rspec | Test::Unit | Shoulda 27/51

Rack::MockRequest # Mock of a Rack App # Rack アプリケーションをモックする req = Rack::MockRequest.new(Sinatra::Application) # invoke HTTP methods(as in Sinatra) # HTTPメソッドを呼び出す(Sinatraと同じ) resp = req.get('/') # And you get one Rack::MockResponse # Rack::MockResponseを得る resp.should.be.kind_of Rack::MockResponse resp.should.be.ok resp.body.should.match(%r{ <title>My Title</title> }) 28/51

Authentication 認証 Need these friends: 必須の友 Warden Rack::OpenID 29/51

Strategies 認証方式 No presetted strategies. あらかじめセットされた認証方式はない Adding new strategy is very easy. 新しい方式を加えるが容易だ 30/51

Add new Strategy # Add to strategies // 認証方式を加える Warden::Strategies.add(:password) do def authenticate! u = User.auth(params['username'], params['password']) u.nil? ? fail!("Could not log in") : success!(u) end end 31/51

Use Warden # must enable session when use warden # セッションの使用が必須 enable :session # just as use a rack middleware # Rackミドルワェアの使用と同じ use Warden::Manager do |manager| # assign the stategies # 認証方式を指定する manager.default_strategies :password # Which Rack App to handle failure? # 失敗したらどのRack Appをとうして処理するか manager.failure_app = Failed end 32/51

OpenID and OAuth warden-openid provides warden-oauth provides 33/51

Ajax Need these friends: 必須の友 jQuery 34/51

Client-side code $.post('/blogs', { title: 'new title', content: '.. some content' }); // with jquery-form $('#form').ajaxSubmit(); 35/51

No respond_to # in a rails controller # different routes "/:id.:format", "/:id?format=:format" # shares the same code # パスが異なっていても同じコードを共有している def show respond_to do |format| format.json do # deal with json end format.html do # deal with html end end end 36/51

Only case ... when ... # use regexp routes # 正規表現のルーツを使う get %r{^/blogs/:id(.json|.xml)?$} do if params[:captures] params[:format] = params[:captures][0][1..-1] end case params[:format] when 'json' # deal with json else # deal with html end end 37/51

Web services may help 便利なサービス 38/51

Heroku Minimal eﬀort to deploy app 最小限の労力でアプリをデプロする 39/51

just a "push" "push"するだけ wujiang@wujiang-laptop:~/jiangwu.net$ git push heroku master Counting objects: 7, done. Delta compression using up to 2 threads. Compressing objects: 100% (4/4), done. Writing objects: 100% (4/4), 1.03 KiB, done. Total 4 (delta 2), reused 0 (delta 0) -----> Heroku receiving push -----> Rack app detected Compiled slug size is 340K -----> Launching...... done http://www.jiangwu.net deployed to Heroku 40/51

no need to setup system by yourself セットアップ不要 41/51

Disqus Minimal eﬀort of comment system 最小限の労力でコメントシステムを作る 42/51

add commenting system in one minute 瞬時にコメント機能を追加 <section class="comments"> ... <script type="text/javascript" src="http://disqus.com/forums/wujiang/embed.js"> </script> ... </section> 43/51

Loading 読み込み中 44/51

Loading Complete 読み込み完了 45/51

Light but powerful 軽くてパワフル 46/51

Focus 専念 47/51

Real Business 真の用事 48/51

Make friends actively 友達をたくさん作ろう! 49/51

Questions? 質問どうぞ 50/51

Thank you! Especially thanks Masayoki TakaHashi and Eito Katagiri for translations! http://jiangwu.net @mastewujiang 51/51

Sinatra and friends

by Jiang Wu on Sep 06, 2010

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Sinatra and friends — Presentation Transcript