{"title":"ActiveRecord Relation \u306e\u5185\u5bb9\u3092\u30d3\u30e3\u30c3\u3068 view \u306b\u51fa\u3059","image_url":null,"author_url":"https://blog.hatena.ne.jp/donbulinux/","type":"rich","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdonbulinux.hatenablog.jp%2Fentry%2F2021%2F06%2F29%2F160645\" title=\"ActiveRecord Relation \u306e\u5185\u5bb9\u3092\u30d3\u30e3\u30c3\u3068 view \u306b\u51fa\u3059 - AR \u30db\u30fc\u30e0\u30d9\u30fc\u30ab\u30ea\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://donbulinux.hatenablog.jp/","url":"https://donbulinux.hatenablog.jp/entry/2021/06/29/160645","published":"2021-06-29 16:06:45","provider_url":"https://hatena.blog","blog_title":"AR \u30db\u30fc\u30e0\u30d9\u30fc\u30ab\u30ea\u30fc","categories":["Rails"],"description":"Model.select(\"created_at\").first \u3068\u304b\u3059\u308b\u3068\u3001#<ActiveRecord::reration:\u301c\u301c\u301c> \u3068\u3044\u3046\u611f\u3058\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u9802\u3051\u308b\u306e\u3067\u3001\u3044\u3084\u62d9\u8005\u306f\u5024\u3060\u3051\u304c\u307b\u3057\u3044\u2026\u2026\u3068\u3044\u3046\u3068\u304d\u306b\u30d3\u30e3\u30c3\u3068\u3059\u308b\u3002 Model.pluck(\"created_at\").first \u306a\u308b\u307b\u3069\u914d\u5217\u306a\u306e\u3067 select \u3067\u306f\u306a\u304f pluck \u307f\u305f\u3044\u306a\u6c17\u6301\u3061\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3002 \u3068\u308a\u3042\u3048\u305a view \u306b\u300c\u30d3\u30e3\u30c3\uff01\u300d\u3068\u51fa\u3057\u305f\u3044\u6642\u306f\u3053\u308c\u3067\u3044\u3044\u304b\u3002","provider_name":"Hatena Blog","author_name":"donbulinux","height":"190","version":"1.0"}