{"url":"https://tnakamura.hatenablog.com/entry/2012/12/09/153711","blog_url":"https://tnakamura.hatenablog.com/","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftnakamura.hatenablog.com%2Fentry%2F2012%2F12%2F09%2F153711\" title=\"ActiveRecord\u3067\u30c6\u30fc\u30d6\u30eb\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 - present\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"present","type":"rich","title":"ActiveRecord\u3067\u30c6\u30fc\u30d6\u30eb\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5","version":"1.0","author_name":"griefworker","height":"190","author_url":"https://blog.hatena.ne.jp/griefworker/","provider_url":"https://hatena.blog","description":"Rails\u30a8\u30f3\u30b8\u30f3\u3092\u4f5c\u3063\u3066\u308b\u3068\u30c6\u30fc\u30d6\u30eb\u540d\u3084\u5217\u60c5\u5831\u3092\u53d6\u5f97\u3057\u305f\u3044\u3068\u304d\u304c\u3042\u308b\u3002Rails\u30a2\u30d7\u30ea\u3092\u4f5c\u3063\u3066\u308b\u3068\u304d\u306f\u3042\u3093\u307e\u308a\u7121\u3044\u3051\u3069\u3002\u305d\u3093\u306a\u3068\u304d\u7528\u306b\u3001ActiveRecord \u306b\u306f\u30c6\u30fc\u30d6\u30eb\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002\u30c6\u30fc\u30d6\u30eb\u540d\u306a\u3089 table_name\u3001\u5217\u60c5\u5831\u306a\u3089 columns \u3068\u3044\u3063\u305f\u98a8\u306b\u306d\u3002 irb(main):001:0> Task.table_name => \"tasks\" irb(main):002:0> Task.columns => [#<ActiveRecord::ConnectionAdapters::SQLiteColumn:0x007f8c1c6f7b60\u2026","categories":["Ruby","Rails"],"published":"2012-12-09 15:37:11","width":"100%","image_url":null}