{"categories":["Rails"],"blog_title":"\u3068\u30fc\u307e\u3059\u30e1\u30e2","url":"https://thoames.hatenadiary.jp/entry/2019/10/08/003936","published":"2019-10-08 00:39:36","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/Thoames1212/","blog_url":"https://thoames.hatenadiary.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fthoames.hatenadiary.jp%2Fentry%2F2019%2F10%2F08%2F003936\" title=\"\u3010Rails\u3011migration\u30d5\u30a1\u30a4\u30eb\u5b9f\u884c\u6642\u306b\u540c\u6642\u306bSQL\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5 - \u3068\u30fc\u307e\u3059\u30e1\u30e2\" 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","author_name":"Thoames1212","version":"1.0","description":"\u4f5c\u6210\u3059\u308bmigration\u30d5\u30a1\u30a4\u30eb\u306e\u51e6\u7406\u306f\u3001\uff11\u3064\u306e\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3044\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u51e6\u7406\u306e\u307f\u3092\u884c\u3046\u3002 \u3057\u304b\u3057default\u5024\u306f\u8a2d\u5b9a\u305b\u305a\u3001\u5168\u30ec\u30b3\u30fc\u30c9\u4e0a\u306e\u4f5c\u6210\u3055\u308c\u308b\u30ab\u30e9\u30e0\u306b\u306f\u3001\u7279\u5b9a\u306e\u5024\u3092\u57cb\u3081\u8fbc\u307f\u305f\u3044\u3068\u3044\u3046\u8981\u4ef6\u304c\u3042\u3063\u305f\u305f\u3081 migration\u5b9f\u884c\u6642\u306b\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u5f8c\u3001\u305d\u306e\u7279\u5b9a\u5024\u3092\u57cb\u3081\u8fbc\u3080\u51e6\u7406\u3082\u540c\u6642\u306b\u5165\u308c\u305f\u304f\u306a\u3063\u305f\u3002\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u304c\u53c2\u8003\u306b\u306a\u3063\u305f\u3002 qiita.com class ChangeTests < ActiveRecord::Migration def change add_column :sample_tables, :test_column, :string, :after => :previo\u2026","width":"100%","title":"\u3010Rails\u3011migration\u30d5\u30a1\u30a4\u30eb\u5b9f\u884c\u6642\u306b\u540c\u6642\u306bSQL\u3092\u5b9f\u884c\u3059\u308b\u65b9\u6cd5","type":"rich","provider_url":"https://hatena.blog","image_url":null}