{"image_url":null,"provider_name":"Hatena Blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftnakamura.hatenablog.com%2Fentry%2F2014%2F07%2F01%2F113000\" title=\"paranoia \u3092\u4f7f\u3063\u305f\u8ad6\u7406\u524a\u9664\u3067\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u5b9f\u884c\u3057\u306a\u3044 - present\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"present","url":"https://tnakamura.hatenablog.com/entry/2014/07/01/113000","provider_url":"https://hatena.blog","categories":["Ruby"],"title":"paranoia \u3092\u4f7f\u3063\u305f\u8ad6\u7406\u524a\u9664\u3067\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u5b9f\u884c\u3057\u306a\u3044","published":"2014-07-01 11:30:00","type":"rich","author_url":"https://blog.hatena.ne.jp/griefworker/","blog_url":"https://tnakamura.hatenablog.com/","version":"1.0","width":"100%","author_name":"griefworker","description":"paranoia \u3092\u4f7f\u3063\u305f\u8ad6\u7406\u524a\u9664\u3067\u306f\u3001destroy \u3057\u305f\u3068\u304d deleted_at \u304c\u8a2d\u5b9a\u3055\u308c\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3082\u5b9f\u884c\u3055\u308c\u308b\u3002 \u305d\u306e\u305f\u3081 class User < ActiveRecord::Base acts_as_paranoid has_many :items, dependent: :destroy end \u4e0a\u8a18\u306e User \u3067 destroy \u3092\u5b9f\u884c\u3059\u308b\u3068 items \u304c\u524a\u9664\u3055\u308c\u308b\u3002 \u8ad6\u7406\u524a\u9664\u3067\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u5b9f\u884c\u3055\u308c\u308b\u306e\u304c\u4eca\u56de\u90fd\u5408\u304c\u60aa\u304b\u3063\u305f\u306e\u3067\u3001paranoia \u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u898b\u306a\u304c\u3089\u3001destroy \u3092\u4e0a\u66f8\u304d\u3057\u3066\u5bfe\u51e6\u3057\u3066\u307f\u305f\u3002 class User < ActiveR\u2026"}