{"blog_title":"\uff08\u3072\uff09\u30e1\u30e2","type":"rich","published":"2008-04-28 00:15:55","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhirose31.hatenablog.jp%2Fentry%2F20080428%2F1209309355\" title=\" \u304a\u308c\u306e\u30e1\u30e2 - \uff08\u3072\uff09\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"width":"100%","description":"\u8db3\u5834(scaffold)\u306f\u6700\u7d42\u7684\u306b\u306f\u5916\u3059(\u6368\u3066\u3066\u7f6e\u304d\u63db\u3048\u308b) David\u306e\u9aea\u578b\u306f\u3046\u3093\u3053\u4f3c \u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u30e1\u30bd\u30c3\u30c9 20.megabytes => 20971520 20.hours => 72000 \u5358\u4e00\u30c6\u30fc\u30d6\u30eb\u7d99\u627f (STI: Single Table Inheritance) Customer, Employee, Manager\u30921\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u3002 type\u30ab\u30e9\u30e0\u3067\u533a\u5225\u3002 \u30ab\u30e9\u30e0\u306e\u91cd\u8907\u304c\u591a\u304f\u3001\u884c\u6570\u304c\u305d\u308c\u307b\u3069\u591a\u304f\u306a\u3044\u5834\u5408\u306b\u6709\u52b9\u3002\u30c6\u30fc\u30d6\u30eb\u7d50\u5408\u304c\u4e0d\u8981\u306b\u306a\u308b\u3057\u3002 \u30dd\u30ea\u30e2\u30fc\u30d5\u30a3\u30c3\u30af\u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3 \u95a2\u9023\u30c6\u30fc\u30d6\u30eb\u306b\u578b\u30ab\u30e9\u30e0\u3092\u6301\u305f\u305b\u3066\u985e\u4f3c\u7570\u7a2e\u307e\u3068\u3081\u308b\u3002 Acts As Acts As List Acts\u2026","title":" \u304a\u308c\u306e\u30e1\u30e2","height":"190","image_url":null,"author_url":"https://blog.hatena.ne.jp/hirose31/","author_name":"hirose31","url":"https://hirose31.hatenablog.jp/entry/20080428/1209309355","blog_url":"https://hirose31.hatenablog.jp/","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","version":"1.0"}