{"type":"rich","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm4i.hatenablog.com%2Fentry%2F2013%2F12%2F10%2F184336\" title=\"Rails 4.0 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f - @m4i&#39;s blog\" 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%","author_url":"https://blog.hatena.ne.jp/m4i/","description":"\u6700\u8fd1\u3001Rails 1.2 \u3067\u958b\u767a\u3092\u30b9\u30bf\u30fc\u30c8\u3057\u305f Rails 3.2 \u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092 Rails 4.0 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f\u3002 \u305d\u306e\u6642\u306b\u4fee\u6b63\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u3068\u3053\u308d\u306e\u30e1\u30e2\u3092\u6b8b\u3057\u3066\u304a\u304f\u3002 ActiveSupport ActiveSupport::JSON.encode \u3067\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u304c escape \u3055\u308c\u306a\u304f\u306a\u3063\u305f Range#step \u306e\u62e1\u5f35 (blockless_step) \u304c\u524a\u9664\u3055\u308c\u305f ActiveModel validates_format_of \u3067 multiline option \u306a\u3057\u306b ^ $ \u3092\u5229\u7528\u3067\u304d\u306a\u304f\u306a\u3063\u305f validates_confirmation_of \u306e\u30a8\u30e9\u30fc\u2026","version":"1.0","blog_url":"https://m4i.hatenablog.com/","categories":["Rails"],"url":"https://m4i.hatenablog.com/entry/2013/12/10/184336","title":"Rails 4.0 \u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u305f","image_url":null,"provider_url":"https://hatena.blog","height":"190","published":"2013-12-10 18:43:36","blog_title":"@m4i's blog","author_name":"m4i"}