{"image_url":null,"version":"1.0","url":"https://www.letitride.jp/entry/2019/06/26/213737","blog_title":"\u8ffd\u61b6\u884c","categories":["\u30c6\u30c3\u30af"],"title":"Rails \u5b9a\u7fa9\u6e08\u307f\u30c6\u30fc\u30d6\u30eb\u306b\u5236\u7d04\u3092\u8ffd\u52a0\u3059\u308b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.letitride.jp%2Fentry%2F2019%2F06%2F26%2F213737\" title=\"Rails \u5b9a\u7fa9\u6e08\u307f\u30c6\u30fc\u30d6\u30eb\u306b\u5236\u7d04\u3092\u8ffd\u52a0\u3059\u308b - \u8ffd\u61b6\u884c\" 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","width":"100%","provider_name":"Hatena Blog","description":"\u899a\u3048\u308b\u6c17\u3082\u306a\u304f\u3044\u3064\u3082\u30b0\u30b0\u3063\u3066\u624b\u9593\u304c\u304b\u304b\u308b\u306e\u3067\u3053\u3053\u306b\u8a18\u9332\u3057\u3066\u304a\u304f\u3002 not null & default \u5927\u4f53\u3044\u3064\u30822\u3064\u30bb\u30c3\u30c8\u3067\u4f7f\u3046\u3053\u3068\u306b\u306a\u308b\u3002 class ChangeColumnNameToTables < ActiveRecord::Migration[5.2] def change change_column_null :\u30c6\u30fc\u30d6\u30eb\u540d, :\u30ab\u30e9\u30e0\u540d, null: false, 0 change_column :\u30c6\u30fc\u30d6\u30eb\u540d, :\u30ab\u30e9\u30e0\u540d, :\u30ab\u30e9\u30e0\u578b, :default => 0 end end CREATE INDEX class AddIndexColumnNameToTables < \u2026","author_url":"https://blog.hatena.ne.jp/letitride/","author_name":"letitride","provider_url":"https://hatena.blog","published":"2019-06-26 21:37:37","type":"rich","blog_url":"https://www.letitride.jp/"}