{"version":"1.0","title":"Rails4 \u5217\u540d\u306e\u5909\u66f4","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fayaketan.hatenablog.com%2Fentry%2F2014%2F01%2F08%2F100412\" title=\"Rails4 \u5217\u540d\u306e\u5909\u66f4 - ayaketan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\u65e5\u8a18\" 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","provider_url":"https://hatena.blog","image_url":null,"provider_name":"Hatena Blog","url":"https://ayaketan.hatenablog.com/entry/2014/01/08/100412","blog_title":"ayaketan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u52c9\u5f37\u65e5\u8a18","type":"rich","categories":["Ruby"],"description":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u3063\u305f\u304c\u3001\u5217\u540d\u3092\u5909\u66f4\u3057\u305f\u304f\u306a\u3063\u305f\u3002 \u5217\u540d\u306e\u5909\u66f4\u65b9\u6cd5\u3092\u8abf\u3079\u305f\u306e\u3067\u30e1\u30e2\u3002\u2460\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210 \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3002 rails g migration RenameColumnToTargetTable \uff08\u4f8b\uff09 \u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u4e0b\u8a18\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c rails g migration RenameColumnToUsers \u203b\u3053\u3053\u3067\u306fusers\u30c6\u30fc\u30d6\u30eb\u306e\u5217\u540d\u3092\u5909\u66f4\u3059\u308b\u3002\u3059\u308b\u3068\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u308b\u3002 \u203b\u6570\u5b57\u306e\u90e8\u5206\u306f\u74b0\u5883\u306b\u3088\u3063\u3066\u7570\u306a\u308b db/migrate/20140108005106_rename_\u2026","width":"100%","blog_url":"https://ayaketan.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/ayaketan/","author_name":"ayaketan","published":"2014-01-08 10:04:12"}