{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.andpad.co.jp%2Fentry%2F2026%2F04%2F21%2F100000\" title=\"Active Record \u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u5b89\u5168\u306b\u5ec3\u6b62\u3059\u308b - ANDPAD Tech Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u3053\u3093\u306b\u3061\u306f\u3001\u30b6\u30c3\u30af\u3067\u3059\u3002\u30a2\u30f3\u30c9\u30d1\u30c3\u30c9\u3067\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e Rails \u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u50cd\u304d\u306a\u304c\u3089\u3001\u8da3\u5473\u3067 Ruby \u3084 Rails \u306b\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u30dd\u30b9\u30c8\u3067\u306f\u3001Rails \u3078\u9759\u304b\u306b\u52a0\u308f\u3063\u305f\u3042\u307e\u308a\u77e5\u3089\u308c\u3066\u3044\u306a\u3044\u6a5f\u80fd\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u5927\u898f\u6a21\u306a Rails \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6271\u3046\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u306f\u3001\u7279\u306b\u5f79\u7acb\u3064\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002 Deprecated Associations \u53e4\u3044\u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u306e\u524a\u9664\u306f\u3001\u672c\u6765\u306a\u3089\u30eb\u30fc\u30c6\u30a3\u30f3\u306a\u4f5c\u696d\u306e\u306f\u305a\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u624b\u63a2\u308a\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002 \u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u691c\u7d22\u3057\u3001\u660e\u3089\u304b\u306a\u547c\u3073\u51fa\u3057\u7b87\u6240\u3092\u4fee\u6b63\u3057\u3001\u30c6\u30b9\u30c8\u3092\u8d70\u3089\u305b\u3001\u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u554f\u984c\u306a\u3055\u305d\u3046\u306b\u898b\u3048\u2026","type":"rich","provider_name":"Hatena Blog","version":"1.0","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/it_andpad/20260420/20260420141055.png","width":"100%","height":"190","author_name":"z-zzak","author_url":"https://blog.hatena.ne.jp/z-zzak/","blog_title":"ANDPAD Tech Blog","categories":["Rails"],"blog_url":"https://tech.andpad.co.jp/","title":"Active Record \u30a2\u30bd\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u5b89\u5168\u306b\u5ec3\u6b62\u3059\u308b","published":"2026-04-21 10:00:00","url":"https://tech.andpad.co.jp/entry/2026/04/21/100000","provider_url":"https://hatena.blog"}