{"provider_url":"https://hatena.blog","width":"100%","version":"1.0","blog_url":"https://imaizumimr.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fimaizumimr.hatenablog.com%2Fentry%2F2020%2F09%2F29%2F012937\" title=\"find_or_initialize_by \u3068 find_or_create_by \u306e\u9055\u3044 - Eggshell\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"find_or_create_by \u306f\u5f15\u6570\u306b\u6e21\u3057\u305f\u6761\u4ef6\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u306a\u3051\u308c\u3070 create \u3059\u308b\u3002 find_or_initialize_by \u306f\u5f15\u6570\u306b\u6e21\u3057\u305f\u6761\u4ef6\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u306a\u3051\u308c\u3070 new \u3059\u308b\u3002 \u8fd4\u308a\u5024\u306f\u30ec\u30b7\u30fc\u30d0\u306emodel\u3002 \u5f15\u6570\u306b\u6e21\u3057\u305f\u6761\u4ef6\u306f AND \u3067\u691c\u7d22\u3055\u308c\u308b\u306e\u3067\u3001\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u3067 create_or_update \u307f\u305f\u3044\u306b\u4f7f\u3046\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002 Book.find_or_create_by(id: 5) # <Book id: 5, title: nil, created_at: \"2020-09-28 04:13:23\", updated_at: \"2020-09-28 04:1\u2026","provider_name":"Hatena Blog","blog_title":"Eggshell","image_url":null,"title":"find_or_initialize_by \u3068 find_or_create_by \u306e\u9055\u3044","published":"2020-09-29 01:29:37","author_name":"imaizumimr","type":"rich","url":"https://imaizumimr.hatenablog.com/entry/2020/09/29/012937","categories":["Ruby on Rails"],"author_url":"https://blog.hatena.ne.jp/imaizumimr/","height":"190"}