{"blog_url":"https://opiyotan.hatenablog.com/","categories":["Rails","model"],"author_name":"opiyotan","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fopiyotan.hatenablog.com%2Fentry%2Frails_model_before-after\" title=\"\u3010Rails\u3011\u30e2\u30c7\u30eb\u306e\u5909\u66f4\u524d\u5f8c\u306e\u5024\u3084\u5909\u66f4\u3055\u308c\u305f\u306e\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b - \u304a\u3074\u3088\u306e\u6c17\u307e\u3050\u308c\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>","url":"https://opiyotan.hatenablog.com/entry/rails_model_before-after","height":"190","image_url":"https://cdn.user.blog.st-hatena.com/default_entry_og_image/110785513/1514221383750427","width":"100%","published":"2019-09-30 21:05:56","description":"Ruby on Rails\u3067\u4fdd\u5b58\u3084\u5909\u66f4\u3057\u305f\u6642\u306e\u5024\u3092\u53d6\u5f97\u3057\u305f\u308a\u3001\u5024\u304c\u5909\u66f4\u3055\u308c\u305f\u306e\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u5909\u66f4\u306e\u30c1\u30a7\u30c3\u30af\uff08changed?\uff09 \u30e2\u30c7\u30eb\u5168\u4f53\u3067\u5909\u66f4\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306b\u306fchanged?\u3092\u4f7f\u3044\u307e\u3059\u3002 > hoge = Hoge.last Hoge Load (0.3ms) SELECT \"hoges\".* FROM \"hoges\" ORDER BY \"hoges\".\"id\" DESC LIMIT $1 [[\"LIMIT\", 1]] => #<Hoge:0x00007fd646062b78 id: 1, name: \"opiyo\", age: 30, gende\u2026","title":"\u3010Rails\u3011\u30e2\u30c7\u30eb\u306e\u5909\u66f4\u524d\u5f8c\u306e\u5024\u3084\u5909\u66f4\u3055\u308c\u305f\u306e\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b","blog_title":"\u304a\u3074\u3088\u306e\u6c17\u307e\u3050\u308c\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/opiyotan/","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","version":"1.0","type":"rich"}