{"provider_url":"https://hatena.blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.te-nu.com%2Fentry%2F2017%2F02%2F16%2F233416\" title=\"Rails\u306eActiveRecord\u3067create_or_update\u3092\u5206\u5c90\u306a\u3057\u3067\u30b9\u30de\u30fc\u30c8\u306b\u3059\u308b\u65b9\u6cd5 - \u30a6\u30a7\u30d6\u30a8\u30f3\u30b8\u30cb\u30a2\u73cd\u9053\u4e2d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Rails"],"url":"https://www.te-nu.com/entry/2017/02/16/233416","height":"190","title":"Rails\u306eActiveRecord\u3067create_or_update\u3092\u5206\u5c90\u306a\u3057\u3067\u30b9\u30de\u30fc\u30c8\u306b\u3059\u308b\u65b9\u6cd5","author_url":"https://blog.hatena.ne.jp/te-nu/","description":"\u6700\u8fd1\u898b\u3064\u3051\u305f\u306e\u3067\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u4eca\u56de\u306f\u672c\uff08Book\uff09\u30e2\u30c7\u30eb\u3092\u4f8b\u984c\u306b\u3057\u307e\u3059\u3002 \u65b9\u6cd5 \u3053\u3093\u306a\u611f\u3058\u3067\u3067\u304d\u307e\u3059\u3002 book = Book.find_or_initialize_by(id: 1) # book = Book.find_or_initialize_by(name: \"\u3053\u3053\u308d\") # id\u3058\u3083\u306a\u304f\u3066\u3082OK book.update_attributes( name: \"\u3053\u3053\u308d\", author: \"\u590f\u76ee\u6f31\u77f3\" ) \u89e3\u8aac find_or_initialize_by\u30e1\u30bd\u30c3\u30c9\u306f\u5f15\u6570\u3067\u4e0e\u3048\u3089\u308c\u305f\u8981\u7d20\u3092\u4f7f\u3063\u3066\u691c\u7d22\u3092\u884c\u3044\u307e\u3059\u3002 \u898b\u3064\u304b\u3063\u305f\u6642\u306b\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8fd4\u3057\u3001\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u5834\u5408\u306f\u65b0\u3057\u304f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u2026","image_url":null,"width":"100%","published":"2017-02-16 23:34:16","blog_url":"https://www.te-nu.com/","author_name":"te-nu","provider_name":"Hatena Blog","blog_title":"\u30a6\u30a7\u30d6\u30a8\u30f3\u30b8\u30cb\u30a2\u73cd\u9053\u4e2d","type":"rich"}