{"version":"1.0","blog_url":"https://bluerabbit.hatenablog.com/","image_url":null,"blog_title":"\u3042\u304a\u3046\u3055\uff20\u65e5\u8a18","url":"https://bluerabbit.hatenablog.com/entry/20080220/1203515944","title":"rails\u306eMigration\u3067\u300c\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u3001\u5b9a\u7fa9\u6e08\u307f\u306e\u30e6\u30fc\u30b6\u306a\u3069\u3001\u672c\u756a\u74b0\u5883\u306b\u3082\u30ed\u30fc\u30c9\u3057\u305f\u3044\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306e\u30de\u30a4\u30b0\u30ec\u300d\u3092\u4f5c\u6210\u3059\u308b\u3002\u3000\u30e1\u30e2","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbluerabbit.hatenablog.com%2Fentry%2F20080220%2F1203515944\" title=\"rails\u306eMigration\u3067\u300c\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u3001\u5b9a\u7fa9\u6e08\u307f\u306e\u30e6\u30fc\u30b6\u306a\u3069\u3001\u672c\u756a\u74b0\u5883\u306b\u3082\u30ed\u30fc\u30c9\u3057\u305f\u3044\u30c7\u30fc\u30bf\u3092\u30ed\u30fc\u30c9\u3059\u308b\u305f\u3081\u306e\u30de\u30a4\u30b0\u30ec\u300d\u3092\u4f5c\u6210\u3059\u308b\u3002\u3000\u30e1\u30e2 - \u3042\u304a\u3046\u3055\uff20\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","author_name":"bluerabbit","description":"#{RAILS_ROOT}/db/migrate/001_create_system.rb require \"migration_helpers\" class CreateSystem < ActiveRecord::Migration extend MigrationHelpers def self.up create_table :system, create_tbl_option do |t| t.column :cd, :string t.column :name, :string end add_index(:system, :cd, :unique => true ) end de\u2026","width":"100%","author_url":"https://blog.hatena.ne.jp/bluerabbit/","categories":["\u6280\u8853"],"provider_url":"https://hatena.blog","published":"2008-02-20 22:59:04","height":"190"}