{"blog_url":"https://www.malanka.org/","width":"100%","author_url":"https://blog.hatena.ne.jp/mah666hhh/","provider_url":"https://hatena.blog","author_name":"mah666hhh","categories":["\u6280\u8853\u95a2\u9023","\u6280\u8853\u95a2\u9023 - Rails"],"version":"1.0","type":"rich","image_url":null,"title":"\u3010rails5\u3011db:migrate:reset\u3067\u30cf\u30de\u3063\u305f\u30e1\u30e2","published":"2020-01-06 08:02:39","height":"190","url":"https://www.malanka.org/entry/2020/01/06/080239","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.malanka.org%2Fentry%2F2020%2F01%2F06%2F080239\" title=\"\u3010rails5\u3011db:migrate:reset\u3067\u30cf\u30de\u3063\u305f\u30e1\u30e2 - \u30b9\u30ea\u98ef\u5c4bMaLanka\u306e\u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306a\u65e5\u3005\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","description":"db:migrate:reset\u306f\u3001db\u3092\u5168\u3066\u524a\u9664\u3057\u3001\u3082\u3046\u4e00\u5ea6migrate\u3092\u5b9f\u884c\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3002 reset\u3059\u308b\u3068\u3001db:seed\u3067\u4f5c\u6210\u3057\u3066\u3044\u305f\u30e6\u30fc\u30b6\u30fc\u3082\u524a\u9664\u3055\u308c\u308b\u3002 \u30c6\u30fc\u30d6\u30eb\u306b\u30ab\u30e9\u30e0\u8ffd\u52a0(Add~\u30c6\u30fc\u30d6\u30eb\u90e8\u5206\u306f\u30d1\u30b9\u30ab\u30eb\u30b1\u30fc\u30b9\u3001\u982d\u6587\u5b57\u3060\u3051\u5927\u6587\u5b57\u3067\u5165\u529b\uff09 $ rails g migration AddColumnTo\u30c6\u30fc\u30d6\u30eb\u540d \u30ab\u30e9\u30e0\u540d:\u30c7\u30fc\u30bf\u578b \u30c6\u30fc\u30d6\u30eb\u304b\u3089\u30ab\u30e9\u30e0\u524a\u9664(Remove~\u30c6\u30fc\u30d6\u30eb\u90e8\u5206\u306f\u30d1\u30b9\u30ab\u30eb\u30b1\u30fc\u30b9\u3001\u982d\u6587\u5b57\u3060\u3051\u5927\u6587\u5b57\u3067\u5165\u529b\uff09 $ rails g migration RemoveColumnFrom\u30c6\u30fc\u30d6\u30eb\u540d \u30ab\u30e9\u30e0\u540d:\u30c7\u30fc\u30bf\u578b \u4e0a\u8a18\u3067\u30ab\u30e9\u30e0\u540d\u3092\u8ffd\u52a0\u3057\u305f\u308a\u524a\u9664\u3057\u3066\u3001\u6df7\u4e71\u3057\u3066\u304d\u305f\u3089 $ git reset --hard \u76f4\u524d\u306e\u30b3\u30df\u30c3\u30c8\u540d \u3067\u3001\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u3084\u30ab\u30e9\u30e0\u306f\u76f4\u524d\u306e\u30b3\u30df\u30c3\u30c8\u306e\u72b6\u614b\u306b\u623b\u305b\u308b\u3002","blog_title":"\u30b9\u30ea\u98ef\u5c4bMaLanka\u306e\u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306a\u65e5\u3005"}