{"categories":["IT"],"description":"Rails\u3067\u306fDB\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u3068\u304d\u3084valid?\u30e1\u30bd\u30c3\u30c9\u304c\u5b9f\u884c\u3055\u308c\u305f\u3068\u304d\u306b \u30e2\u30c7\u30eb\u306b\u8a18\u8ff0\u3057\u305fvalidates\u30d8\u30eb\u30d1\u3084validate\u30e1\u30bd\u30c3\u30c9\u3067\u30e2\u30c7\u30eb\u306e\u5024\u3092\u691c\u8a3c\u3059\u308b\u3002 \u30a8\u30e9\u30fc\u304c\u3042\u3063\u305f\u3089error_messages_for\u3067\u300c\u301c\u306e\u5024\u304c\u4e0d\u6b63\u3067\u3059\u3088\uff01\u300d\u307f\u305f\u3044\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u308f\u3051\u3060\u304c\u3001 \u30b3\u30ec\u306b\u95a2\u3059\u308bTips\u3092\u307e\u3068\u3081\u3066\u304a\u304f\u3002 \uff11\uff0e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u307e\u3068\u3081\u308b \u8907\u6570\u306e\u30e2\u30c7\u30eb\u3092\u4fdd\u5b58\u3059\u308b\u5834\u5408 <%= error_messages_for :user %> <%= error_messages_for :person %>\u2191\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u5225\u3005\u306b\u8868\u793a\u3055\u308c\u308b\u3002 \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4f8b\u306f\u2193 2 \u2026","provider_name":"Hatena Blog","type":"rich","blog_url":"https://anton0825.hatenablog.com/","height":"190","published":"2008-09-06 13:35:50","title":"Rails - \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u307e\u3068\u3081\u308b","author_url":"https://blog.hatena.ne.jp/anton0825/","url":"https://anton0825.hatenablog.com/entry/20080906/1220675750","blog_title":"\u65e5\u3005\u7cbe\u9032","image_url":null,"author_name":"anton0825","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fanton0825.hatenablog.com%2Fentry%2F20080906%2F1220675750\" title=\"Rails - \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u307e\u3068\u3081\u308b - \u65e5\u3005\u7cbe\u9032\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","version":"1.0"}