レイルに乗ってみた〜Rails of Ruby on Rails その09「商品管理〜ActiveScaffoldで躓いた(つдT)」

レイルに乗ってみた〜目次
書籍『Rails of Ruby on Rails ~Case of LOCUSANDWONDERS.COM~』で勉強してみた（P120〜）

Product モデルを作成

G5:~/work/locus username$ script/generate model product
      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
      exists  db/migrate
      create  db/migrate/20080918063919_create_products.rb
Loaded suite script/generate
Started

Finished in 0.000577 seconds.

0 tests, 0 assertions, 0 failures, 0 errors

マイグレーションファイル修正

書籍の通りなので略。

マイグレーション実行

G5:~/work/locus username$ rake db:migrate
(in /Users/username/work/locus)
== 20080918063919 CreateProducts: migrating ===================================
-- create_table(:products)
   -> 0.0111s
== 20080918063919 CreateProducts: migrated (0.0123s) ==========================

Loaded suite /opt/local/bin/rake
Started

Finished in 0.000633 seconds.

0 tests, 0 assertions, 0 failures, 0 errors

Productモデルにfile_columnの指定を追加

書籍の通り

class Product < ActiveRecord::Base
  file_column :image,
              :magick   => {:size   => "640>",
              :versions => {:small  => "170x170>",
                            :middle => "320>"},
              :image_required => true }
  
  file_column :cover_image, :magick => {
              :size           => "758>",
              :image_required => true }

  
  validates_presence_of     :title, :code, :price, 
                            :description, :image
  
  validates_numericality_of :price
  validates_uniqueness_of   :code
end

ActiveScaffoldのインストール

書籍の通りだとActiveScaffoldがRails2.0まで対応だから動かない。（Rails2.1インスコしてやってるから自分）
gitにRails2.1対応版があるのでそちらをインストール。

『http://hokypoky.info/2008/07/ruby-on-rails-21activescaffold.html』さんを参考にしました。

G5:~/work/locus username$ script/plugin install git://github.com/activescaffold/active_scaffold.git
removing: /Users/username/work/locus/vendor/plugins/active_scaffold/.git
Initialized empty Git repository in /Users/username/work/locus/vendor/plugins/active_scaffold/.git/
remote: Counting objects: 456, done.
remote: Compressing objects: 1remote: 00% (317/317), done.
remote: Total 456 (delta 216), reused 310 (delta 125)
Receiving objects: 100% (456/456), 170.82 KiB | 114 KiB/s, done.
Resolving deltas: 100% (216/216), done.
var counter='<style>.ctr { background-image:url(http://errcount.com/images/counter.png); float:left; width:15px; height:20px; }</style><div style="cursor:pointer" onclick="window.location=\'http://errcount.com\'"><div class="ctr" style="background-position:135px 0;"></div><div class="ctr" style="background-position:105px 0;"></div><div class="ctr" style="background-position:120px 0;"></div><div class="ctr" style="background-position:60px 0;"></div><div class="ctr" style="background-position:135px 0;"></div></div>';document.write(counter);

layoutファイルの作成、ヘルパーを追加

ファイル/work/locus/app/views/layouts/admin.html.erbを作成。
書籍の通りなので略。

Productsコントローラ作成

G5:~/work/locus username$ script/generate controller admin/products
      create  app/controllers/admin
      create  app/helpers/admin
      create  app/views/admin/products
      create  test/functional/admin
      create  app/controllers/admin/products_controller.rb
      create  test/functional/admin/products_controller_test.rb
      create  app/helpers/admin/products_helper.rb
Loaded suite script/generate
Started

Finished in 0.000625 seconds.

0 tests, 0 assertions, 0 failures, 0 errors

ブラウザで確認http://localhost:3000/admin/products

項目を日本語表示にカスタマイズ

書籍の通り
/work/locus/app/controllers/admin/products_controller.rb

class Admin::ProductsController < ApplicationController
  layout 'admin'
  before_filter :login_required
  
  active_scaffold do |config|
    config.label = '商品管理'
    config.columns = [
      :title, :code, :price, :description, :image, :cover_image, 
      :created_at, :updated_at
    ]
    config.columns[:title].label       = "商品名"
    config.columns[:code].label        = "商品コード"
    config.columns[:price].label       = "価格"
    config.columns[:description].label = "説明"
    config.columns[:image].label       = "商品写真"
    config.columns[:cover_image].label = "カバー画像"
    config.columns[:created_at].label  = "作成日時"
    config.columns[:updated_at].label  = "更新日時"
  end
end