chibiccooooo https://blog.hatena.ne.jp/chibiccooooo/ chibicco's blog https://blog.chibicco.dev/ Ruby Ruby on Rails はじめに StringとSymbolで同一名のKeyを持つHashはやめよう {'id' => 10, :id => 11, 'name' => 'AAA', :name => 'BBB'} 遭遇 ruby2.4+rails Hash.transform_keys!が特定の状況でsymbolize_keys(非破壊)と互換のない挙動をする ruby2.5.2+rails ruby2.5で同関数が実装された事で正常に動作する 確認 ruby2.4+rails symbolが先の場合 [1] pry(main)> {:id => 10, 'id' => 11, :name => 'AAA', 'n… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.chibicco.dev%2Fentry%2F2019%2F04%2F09%2F094304" title="ActiveSupportのsymbolize_keys!が挙動不審だった件 - chibicco&#39;s blog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2019-04-09 09:43:04 rich https://blog.chibicco.dev/entry/2019/04/09/094304 1.0 100%