{"author_url":"https://blog.hatena.ne.jp/ayaketan/","width":"100%","published":"2013-09-24 21:26:13","description":"where\u3067OR\u3092\u4f7f\u7528\u3057\u305f\u306e\u3067\u3001\u30e1\u30e2\u3002User\u306bclass1_id\u3001class2_id\u3001class3_id\u304c\u3042\u308a\u3001\u305d\u3053\u306b\u306fClass\u306eid\u3092\u767b\u9332\u3059\u308b\u3082\u306e\u3068\u3059\u308b\u3002 class1_id\u3001class2_id\u3001class3_id\u306e\u3069\u308c\u304b\u304c1\u3067\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u3092\u63a2\u3057\u305f\u3044\u3002 class1 = User.where(:class1_id => 1) class2 = User.where(:class2_id => 1) class3 = User.where(:class3_id => 1) class1 = class1.where_values.reduce(:and) class2 = class2.w\u2026","title":"Rails4 ActiveRecord\u3067or\u3092\u4f7f\u7528\u3059\u308b","blog_title":"ayaketan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\u65e5\u8a18","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fayaketan.hatenablog.com%2Fentry%2F2013%2F09%2F24%2F212613\" title=\"Rails4 ActiveRecord\u3067or\u3092\u4f7f\u7528\u3059\u308b - ayaketan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\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>","author_name":"ayaketan","blog_url":"https://ayaketan.hatenablog.com/","categories":["Ruby"],"version":"1.0","provider_url":"https://hatena.blog","url":"https://ayaketan.hatenablog.com/entry/2013/09/24/212613","provider_name":"Hatena Blog","height":"190","type":"rich"}