{"title":"rails\u306en+1\u554f\u984c\u3092includes\u3067\u5bfe\u7b56","provider_name":"Hatena Blog","published":"2021-04-30 18:00:00","image_url":null,"categories":["Rails","Ruby"],"blog_title":"study-output\u306e\u65e5\u8a18","version":"1.0","blog_url":"https://study-output.hatenadiary.com/","url":"https://study-output.hatenadiary.com/entry/2021/04/30/180000","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fstudy-output.hatenadiary.com%2Fentry%2F2021%2F04%2F30%2F180000\" title=\"rails\u306en+1\u554f\u984c\u3092includes\u3067\u5bfe\u7b56 - study-output\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/study-output/","author_name":"study-output","type":"rich","description":"\u306f\u3058\u3081\u306b rails\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u8d77\u3053\u308b\u3001n+1\u554f\u984c\u3092includes\u3092\u4f7f\u3063\u3066\u5bfe\u7b56\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066 n+1\u554f\u984c\u3068\u306f n+1\u554f\u984c\u3068\u306f\u30011\u56de\u306e\u30a2\u30af\u30bb\u30b9\u3067\u3044\u3044\u306e\u306b\u4f55\u56de\u3082\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3057\u307e\u3044\u3001 \u305d\u308c\u306b\u3088\u3063\u3066\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306e\u4f4e\u4e0b\u306a\u3069\u306b\u3064\u306a\u304c\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3067\u3059\u3002 \u4f8b\u3048\u3070\u3001user\u3068post\u304c1\u5bfe\u591a\u6570\u306e\u95a2\u4fc2\u306b\u3042\u308b\u3068\u304d\u3001 @users = User.all @users.each do |user| puts user.post.content \u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001 1\uff1a\u307e\u305auser\u306e\u4e00\u89a7\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u30c7\u30fc\u30bf\u30fc\u30d9\u30fc\u30b9\uff08user\uff09\u3078\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002 2\uff1a\u30ed\u30fc\u30ab\u30eb\u5909\u6570user\u306eid\u306b\u2026","width":"100%"}