{"url":"https://shinespark.hatenablog.com/entry/2018/03/12/083000","categories":["Rails"],"blog_url":"https://shinespark.hatenablog.com/","height":"190","author_url":"https://blog.hatena.ne.jp/ShineSpark/","title":"Rails\u3067\u3001\u5f8c\u304b\u3089counter_cache\u3092\u8ffd\u52a0\u3057\u305f\u6642\u306bcounter_cache\u306e\u521d\u671f\u5024\u3092\u5165\u308c\u305f\u3044","published":"2018-03-12 08:30:00","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshinespark.hatenablog.com%2Fentry%2F2018%2F03%2F12%2F083000\" title=\"Rails\u3067\u3001\u5f8c\u304b\u3089counter_cache\u3092\u8ffd\u52a0\u3057\u305f\u6642\u306bcounter_cache\u306e\u521d\u671f\u5024\u3092\u5165\u308c\u305f\u3044 - \u4eba\u751f\u30b7\u30fc\u30b1\u30f3\u30b9\u30d6\u30ec\u30a4\u30af\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":"https://images-fe.ssl-images-amazon.com/images/I/51TODrMIEnL._SL160_.jpg","width":"100%","version":"1.0","author_name":"ShineSpark","description":"\u30b5\u30fc\u30d3\u30b9\u30ea\u30ea\u30fc\u30b9\u5f8c\u306b counter_cache \u3092\u8ffd\u52a0\u3057\u305f\u306e\u3067\u3001\u65e2\u5b58\u30ec\u30b3\u30fc\u30c9\u306ecounter_cache\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u305f\u304f\u306a\u3063\u305f\u3002 \u3084\u308a\u65b9 reset_counters \u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3059\u308b\u3068\u30ab\u30a6\u30f3\u30bf\u30fc\u30ea\u30bb\u30c3\u30c8\u3067\u304d\u308b\u3002 Room.reset_counters(id, :column) \u5b50\u8981\u7d20\u306e\u8981\u7d20\u6570\u306b\u5408\u308f\u305b\u3066\u4fee\u6b63\u3057\u3066\u304f\u308c\u308b\u306e\u3067\u3001\u6570\u5024\u30ba\u30ec\u304c\u51fa\u3066\u3057\u307e\u3063\u305f\u969b\u306b\u3082\u5229\u7528\u53ef\u80fd\u3002 reset_counters (ActiveRecord::Base) - APIdock \u9069\u7528 Rails\u30b3\u30f3\u30bd\u30fc\u30eb\u4e0a\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u53e9\u304f\u3068\u5168\u30ec\u30b3\u30fc\u30c9\u306e\u30ab\u30a6\u30f3\u30bf\u30fc\u3092\u30ea\u30bb\u30c3\u30c8\u3067\u304d\u308b\u3002 Room.all.each {|i| Room.\u2026","blog_title":"\u4eba\u751f\u30b7\u30fc\u30b1\u30f3\u30b9\u30d6\u30ec\u30a4\u30af","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","type":"rich"}