{"author_url":"https://blog.hatena.ne.jp/onering/","categories":["ruby"],"blog_title":"OneRingToFind","version":"1.0","provider_url":"https://hatena.blog","title":"ruby\u3067\u6587\u5b57\u6570\u3092\u6570\u3048\u308b\u306b\u306f\uff1f","image_url":null,"published":"2008-06-25 16:42:59","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fonering.hatenadiary.org%2Fentry%2F20080625%2F1214379779\" title=\"ruby\u3067\u6587\u5b57\u6570\u3092\u6570\u3048\u308b\u306b\u306f\uff1f - OneRingToFind\" 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%","provider_name":"Hatena Blog","url":"https://onering.hatenadiary.org/entry/20080625/1214379779","description":"http://d.hatena.ne.jp/muscovyduck/20060504\u3092\u53c2\u7167\u3002rails\u306evalidations\u306evalidates_length_of\u3067\u3082\u540c\u3058\u3053\u3068\u3092\u3084\u3063\u3066\u3044\u308b\u3002 value\u306b\u6587\u5b57\u5217\u304c\u5165\u3063\u3066\u3044\u308b\u5834\u5408value.split(//).size\u3067\u6587\u5b57\u6570\u304c\u5f97\u3089\u308c\u308b\u3002 #byte\u306e\u6587\u5b57\u6570\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3002 \u3042\u308b\u6587\u5b57\u5217\u306e\u6587\u5b57\u6570\u3092\u8abf\u3079\u308b\u306b\u306f\u3001\u6587\u5b57\u5217\u3092\u6587\u5b57\u5358\u4f4d\u3067\u914d\u5217\u306b\u683c\u7d0d\u3057\u3066\u304b\u3089\u3001\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3092\u5f97\u308c\u3070\u3044\u3044\u307f\u305f\u3044\u3002\u6587\u5b57\u5217\u3092\u6587\u5b57\u5358\u4f4d\u3067\u914d\u5217\u306b\u683c\u7d0d\u3059\u308b\u306b\u306f\u3001String#split\u3092\u300c//\u300d\u3092\u5f15\u6570\u306b\u3057\u3066\u5b9f\u884c\u3059\u308c\u3070\u3044\u3044\u307f\u305f\u3044\u3060\u3088\u3002 validates_each(attrs, option\u2026","author_name":"onering","height":"190","blog_url":"https://onering.hatenadiary.org/"}