{"categories":["Lisp","on","Rails","tahara"],"url":"https://tech.actindi.net/2010/03/12/3477394606","blog_url":"https://tech.actindi.net/","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.actindi.net%2F2010%2F03%2F12%2F3477394606\" title=\"Lisp on Rails \u7b2c5\u56de \u301c has-one - \u30a2\u30af\u30c8\u30a4\u30f3\u30c7\u30a3\u958b\u767a\u8005\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/dev-actindi/","height":"190","description":"\u3053\u3093\u306b\u3061\u306f!! tahara \u3067\u3059\u3002 Lisp on Rails \u7b2c5\u56de\u3067\u3059! \u4eca\u56de\u306f ActiveRecord \u306e has_one \u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3082\u3069\u304d\u3092\u5b9f\u88c5\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u524d\u56de\u306e has_many \u306b\u74dc\u4e8c\u3064\u3067\u3059\u3002 ar-has-one-direct-slot-definition \u3068 ar-has-one-effective-slot-definition \u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002 (defclass ar-has-one-slot-mixin () ((has-one :initarg :has-one :initform nil :accessor has-one) (class-symb\u2026","title":"Lisp on Rails \u7b2c5\u56de \u301c has-one","image_url":null,"blog_title":"\u30a2\u30af\u30c8\u30a4\u30f3\u30c7\u30a3\u958b\u767a\u8005\u30d6\u30ed\u30b0","published":"2010-03-12 23:56:46","version":"1.0","author_name":"dev-actindi","provider_name":"Hatena Blog"}