Ruby on Rails3 Tutorial Chapter2

RUBY ON RAILS 3 Tutorial を日本語訳してみた Chapter 2 2011-10-12

目次 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

目次 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Chapter 2 A demo app ,[object Object],[object Object],[object Object]

2.1 Planning the Application ,[object Object],[object Object],[object Object],[object Object],$ rails new demo_app $ cd demo_app $ bundle install

2.1 Planning the Application ,[object Object],[object Object],$ git init $ git add . $ git commit –m “Initial commit” $ git remote add origin git@github.com:<username>/demo_app.git $ git push origin master

2.1 Planning the Application ,[object Object],users id integer name string email string microposts id integer content string user_id integer

2.1 Planning the Application ,[object Object],[object Object],[object Object],$ rails generate scaffold User name:string email:string invoke active_record create db/migrate/20111011172415_create_users.rb create app/models/user.rb invoke test_unit 　　　　　　　　…省略… $ rake db:migrate == CreateUsers: migrating ============= -- create_table(:users) -> 0.0023s == CreateUsers: migrated (0.0024s) =================================

Box 2.1 Rake ,[object Object],[object Object],[object Object],$ rake -T db … 省略… rake db:schema:load # Load a schema.rb file into the database rake db:seed # Load the seed data from db/seeds.rb rake db:structure:dump # Dump the database structure to an SQL file rake db:version # Retrieves the current schema version number $ rake –T … 省略… rake db:seed # Load the seed data from db/seeds.rb rake assets:clean # Remove compiled assets … 省略…

2.2.1 A User Tour ,[object Object],[object Object],[object Object],[object Object],URL Action 説明 /users index 全ユーザ表示 /users/1 show ユーザ id が 1 のユーザ表示 /users/new new 新しいユーザを作るページ /users/1/edit edit ユーザ id が 1 のユーザの編集ページ

2.2.2 MVC in Action ,[object Object],[object Object],[object Object],[object Object],[object Object]

2.2.2 MVC in Action ,[object Object],[object Object],[object Object],[object Object]

2.2.2 MVC in Action ,[object Object],[object Object]

2.2.3 Weaknesses of This Users Recource ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2.2.3 Weaknesses of This Users Recource ,[object Object],[object Object],[object Object],[object Object]

2.3 The Microposts Resource ,[object Object],$ rails generate scaffold Micropost content:string user_id:integer $ rake db:migrate

2.3 The Microposts Resource HTTP request URL Action 詳細 GET /microposts index すべての post 表示ページ GET /microposts/1 show id が１の post を表示するページ GET /microposts/new new 新しい post 作成するページ POST /microposts create 新しい post 作成 GET /microposts/1/edit edit id が 1 の post を編集するページ PUT /microposts/1 update id が 1 の post を更新する DELETE /microposts/1 destroy id が 1 の post を削除する

2.3 The Microposts Resource ,[object Object],class Micropost < ActiveRecord :: Base validates :content , :length => { :maximum => 140 } end

2.3 The Microposts Resource ,[object Object],[object Object]

2.3.3 A User has_many Microposts ,[object Object],[object Object],[object Object],class Micropost < ActiveRecord :: Base belongs_to :user validates :content , :length => { :maximum => 140 } end class User < ActiveRecord :: Base has_many :microposts end

2.3.3 A User has_many Microposts

2.3.5 Deploying the Demo App ,[object Object],[object Object],$ git add . $ git commit –a –m “Done with the demo app” $ git push $ heroku create $ git push heroku master $ heroku rake db:migrate

2.3.5 Deploying the Demo App ,[object Object],[object Object],[object Object],$ [ sudo ] gem install taps $ heroku db:push

2.4 Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2.4 Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ruby on Rails3 Tutorial Chapter2

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