{"provider_name":"Hatena Blog","width":"100%","height":"190","blog_url":"https://beer-takuya.hatenadiary.org/","description":"\u591c\u306b\u306a\u3089\u306a\u3044\u3068\u3001\u3084\u308b\u6c17\u304c\u51fa\u306a\u3044\u306e\u306f\u5982\u4f55\u306b\u3002\u3002\u3002\u307e\u3041\u4ed5\u4e8b\u3084\u3063\u3066\u3066\u3082\u305d\u3046\u3060\u308d\u3046\u3051\u3069\u306d 5\u7ae0\u306e\u30e2\u30c7\u30eb\u306e\u958b\u767a .8\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3 migration\u306e\u9805\u3092\u307f\u3066\u3084\u3063\u3066\u3044\u305f\u3093\u3067\u3059\u304c\u3001self:up , self:down\u3067\u8aac\u660e\u304c\u304b\u304b\u308c\u3066\u3044\u308b\u304c\u3001\u4f5c\u3089\u308c\u305f\u74b0\u5883\u304crails\u30d0\u30fc\u30b8\u30e7\u30f33.1\u306a\u306e\u3067\u3001\u3061\u3087\u3063\u3068\u8abf\u3079\u3066\u898b\u305f\u3089\u3001\u751f\u6210\u3055\u308c\u305fmigration\u30d5\u30a1\u30a4\u30eb\u3069\u304a\u308achange\u30e1\u30bd\u30c3\u30c9\u306b\u7d71\u4e00\u3067\u3044\u3044\u3088\u3046\u3060\u306d\u3002Rails 3.1 \u306e migration \u306e\u5909\u66f4\u70b9\u306b\u3064\u3044\u3066 - \u304a\u3082\u3057\u308dweb\u30b5\u30fc\u30d3\u30b9\u958b\u767a\u65e5\u8a18 \u3057\u304b\u3057\u4fbf\u5229\u3002\u3044\u307e\u307e\u3067\u4f7f\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u306f\u3042\u308a\u3048\u306a\u3044\u3088\u306a\u3002\u3002\u3042\u308a\u3048\u306a\u3044\u3051\u3069\u3001\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u4e00\u74b0\u3067\u74b0\u5883\u3054\u3068\u306b\u3061\u3087\u3063\u3068\u305a\u2026","author_name":"beer-takuya","url":"https://beer-takuya.hatenadiary.org/entry/20120329/1333028044","author_url":"https://blog.hatena.ne.jp/beer-takuya/","blog_title":"\u7121\u8077\uff1f\u30a8\u30f3\u30b8\u30cb\u30a2\uff1f\u306e\u65e5\u3005","categories":[],"title":"3/29","version":"1.0","provider_url":"https://hatena.blog","published":"2012-03-29 22:34:04","image_url":"http://ws.assoc-amazon.jp/widgets/q?_encoding=UTF8&Format=_SL160_&ASIN=4774146633&MarketPlace=JP&ID=AsinImage&WS=1&tag=beertakuya-22&ServiceVersion=20070822","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbeer-takuya.hatenadiary.org%2Fentry%2F20120329%2F1333028044\" title=\"3/29 - \u7121\u8077\uff1f\u30a8\u30f3\u30b8\u30cb\u30a2\uff1f\u306e\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>","type":"rich"}