{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmemorandums.hatenablog.com%2Fentry%2F2026%2F09%2F08%2F220805\" title=\"json 3.0\u3067ActiveSupport::JSON.decode\u304c\u58ca\u308c\u3066Rails\u306esession\u3067\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u8a71 - memorandums\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/ke_takahashi/","provider_url":"https://hatena.blog","description":"\u304d\u3063\u304b\u3051 \u62c5\u5f53\u3057\u3066\u3044\u308b\u6f14\u7fd2\u79d1\u76ee\u306e\u8b1b\u7fa9\u8cc7\u6599\u3092\u3001\u4eca\u5e74\u5ea6\u4f7f\u3046Ruby 3.4.3 / Rails 8.1.3\u306e\u74b0\u5883\u3067\u52d5\u4f5c\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u53bb\u5e74\u306fRuby 3.2.2 / Rails 8.0\u7cfb\u3067\u78ba\u8a8d\u6e08\u307f\u3067\u7279\u306b\u554f\u984c\u306f\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u4eca\u56de\u3082\u30b5\u30e9\u30c3\u3068\u6d41\u3059\u3064\u3082\u308a\u3067\u3057\u305f\u3002 \u3068\u3053\u308d\u304c\u3001rails new\u3057\u305f\u3060\u3051\u306e\u7d20\u306e\u30a2\u30d7\u30ea\u3067\u3001session[:xxx] = \"foo\"\u3068\u66f8\u304d\u8fbc\u3093\u3060\u5f8c\u306bsession[:xxx]\u3092\u8aad\u307f\u51fa\u305d\u3046\u3068\u3059\u308b\u3068\u3001\u5fc5\u305a\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u3067500\u306b\u306a\u308b\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u3002 ArgumentError: wrong number of arguments (given 2, expected 1) cooki\u2026","provider_name":"Hatena Blog","categories":["AI","\u30e1\u30e2"],"blog_url":"https://memorandums.hatenablog.com/","width":"100%","height":"190","blog_title":"memorandums","title":"json 3.0\u3067ActiveSupport::JSON.decode\u304c\u58ca\u308c\u3066Rails\u306esession\u3067\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u8a71","version":"1.0","url":"https://memorandums.hatenablog.com/entry/2026/09/08/220805","published":"2026-09-08 22:08:05","image_url":null,"type":"rich","author_name":"ke_takahashi"}