{"published":"2020-01-31 07:20:24","blog_url":"https://www.malanka.org/","categories":["\u6280\u8853\u95a2\u9023","\u6280\u8853\u95a2\u9023 - Rails"],"description":"where\u53e5\u3067\u30c6\u30fc\u30d6\u30eb\u540d\u3068\u30ab\u30e9\u30e0\u540d\u4e21\u65b9\u3092\u6307\u5b9a\u3057\u3001 \u6587\u5b57\u5217\u3067\u6761\u4ef6\u6307\u5b9a\u3059\u308c\u3070\u51fa\u6765\u307e\u3057\u305f\u3002 Model.joins(:join\u5bfe\u8c61\u306e\u30c6\u30fc\u30d6\u30eb\u540d).where(\"join\u5bfe\u8c61\u306e\u30c6\u30fc\u30d6\u30eb\u540d.join\u5bfe\u8c61\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u3042\u308b\u30ab\u30e9\u30e0\u540d >= ?\", \u65e5\u4ed8) \u4f8b: orders\u30c6\u30fc\u30d6\u30eb\u306eorder_date\u304c\u30012020/01/20\u4ee5\u964d\u306eUser\u3092\u53d6\u5f97\u3059\u308b User.joins(:orders).where(\"orders.order_date >= ?\", Date.parse('2020/01/20')) \u767a\u884c\u3055\u308c\u308bSQL SELECT 1 AS one FROM `users` INNER JOIN `orders` ON `orders`.`user_id` = `users`.`id` WHERE (orders.order_date >= '2020-01-20') LIMIT 1","author_name":"mah666hhh","height":"190","width":"100%","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/m/mah666hhh/20210516/20210516184926.jpg","version":"1.0","provider_name":"Hatena Blog","title":"\u3010Rails\u3011join\u3057\u305f\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3057\u3001where\u53e5\u3067\u7279\u5b9a\u306e\u65e5\u4ed8\u524d\u5f8c\uff08\u4ee5\u524d\u4ee5\u964d\uff09\u3067\u7d5e\u308a\u8fbc\u307f\u3057\u305f\u3044","author_url":"https://blog.hatena.ne.jp/mah666hhh/","blog_title":"\u30b9\u30ea\u98ef\u5c4bMaLanka\u306e\u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306a\u65e5\u3005","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.malanka.org%2Fentry%2F2020%2F01%2F31%2F072024\" title=\"\u3010Rails\u3011join\u3057\u305f\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3057\u3001where\u53e5\u3067\u7279\u5b9a\u306e\u65e5\u4ed8\u524d\u5f8c\uff08\u4ee5\u524d\u4ee5\u964d\uff09\u3067\u7d5e\u308a\u8fbc\u307f\u3057\u305f\u3044 - \u30b9\u30ea\u98ef\u5c4bMaLanka\u306e\u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306a\u65e5\u3005\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","url":"https://www.malanka.org/entry/2020/01/31/072024"}