Agile Web Development with Rails - Chapter 6

Source Code depot1〜depot4

6.1 Iteration A1: Get Something Running

Create a Rails Application

toward@localmachine ~/rails
$ rails depot

toward@localmachine ~/rails
$ cd depot/

Configure the Application (順番入れ替え)

MySQL Administratorでデータベースdepot_developmentを作成
config/database.ymlを変更

login: &login
  adapter: mysql
  username: root
  password: xxxx
  host: LOCALHOST

development:
  database: depot_development
  <<: *login

test:
  database: depot_test
  <<: *login

production:
  database: depot_production
  <<: *login

Create the Product Table (順番入れ替え)

Migration

toward@localmachine ~/rails/depot
$ ruby script/generate migration InitialScheme
      create  db/migrate
      create  db/migrate/001_initial_scheme.rb

db/migrate/001_initial_scheme.rb 変更

class InitialScheme < ActiveRecord::Migration
  def self.up
    create_table :products do |t|
      t.column :title,       :string, :limit => 100, :null => false
      t.column :description, :text,                  :null => false
      t.column :image_url,   :string, :limit => 200, :null => false
      t.column :price,       :float,                 :null => false
    end
  end

  def self.down
    drop_table :products
  end
end

toward@localmachine ~/rails/depot
$ rake --trace migrate
(in /home/toward/rails/depot)
** Invoke migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute migrate

Create the Maintenance Application

toward@localmachine ~/rails/depot
$ ruby script/generate scaffold Product Admin
      exists  app/controllers/
      exists  app/helpers/
      create  app/views/admin
      exists  test/functional/
  dependency  model
      exists    app/models/
      exists    test/unit/
      exists    test/fixtures/
      create    app/models/product.rb
      create    test/unit/product_test.rb
      create    test/fixtures/products.yml
      create  app/views/admin/_form.rhtml
      create  app/views/admin/list.rhtml
      create  app/views/admin/show.rhtml
      create  app/views/admin/new.rhtml
      create  app/views/admin/edit.rhtml
      create  app/controllers/admin_controller.rb
      create  test/functional/admin_controller_test.rb
      create  app/helpers/admin_helper.rb
      create  app/views/layouts/admin.rhtml
      create  public/stylesheets/scaffold.css

toward@localmachine ~/rails/depot
$ ruby script/server
=> Booting WEBrick...
=> Rails application started on http://0.0.0.0:3000
=> Ctrl-C to shutdown server; call with --help for options
[2005-12-18 00:16:45] INFO  WEBrick 1.3.1
[2005-12-18 00:16:45] INFO  ruby 1.8.3 (2005-09-21) [i386-cygwin]
[2005-12-18 00:16:45] INFO  WEBrick::HTTPServer#start: pid=4008 port=3000

6.2 Iteration A2: Add a Missing Column

toward@localmachine ~/rails/depot
$ ruby script/generate migration AddProductDateAvailable
      exists  db/migrate
      create  db/migrate/002_add_product_date_available.rb

db/migrate/002_add_product_date_available.rb 変更

class AddProductDateAvailable < ActiveRecord::Migration
  def self.up
    add_column :products, :date_available, :datetime, :null => false
  end

  def self.down
    remove_column :products, :date_available
  end
end

toward@localmachine ~/rails/depot
$ rake --trace migrate
(in /home/toward/rails/depot)
** Invoke migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute migrate

toward@localmachine ~/rails/depot
$ ruby script/generate scaffold Product Admin
      exists  app/controllers/
      exists  app/helpers/
      exists  app/views/admin
      exists  test/functional/
  dependency  model
      exists    app/models/
      exists    test/unit/
      exists    test/fixtures/
   identical    app/models/product.rb
   identical    test/unit/product_test.rb
   identical    test/fixtures/products.yml
overwrite app/views/admin/_form.rhtml? [Ynaq] a
forcing scaffold
       force  app/views/admin/_form.rhtml
   identical  app/views/admin/list.rhtml
   identical  app/views/admin/show.rhtml
   identical  app/views/admin/new.rhtml
   identical  app/views/admin/edit.rhtml
   identical  app/controllers/admin_controller.rb
   identical  test/functional/admin_controller_test.rb
   identical  app/helpers/admin_helper.rb
   identical  app/views/layouts/admin.rhtml
   identical  public/stylesheets/scaffold.css

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