{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftbpgr.hatenablog.com%2Fentry%2F20140701%2F1404222018\" title=\"Ruby on Rails | Validation | format - Tbpgr Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","image_url":null,"height":"190","width":"100%","type":"rich","url":"https://tbpgr.hatenablog.com/entry/20140701/1404222018","author_name":"tbpg","title":"Ruby on Rails | Validation | format","version":"1.0","blog_url":"https://tbpgr.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/tbpg/","description":"\u6982\u8981 format \u8a73\u7d30 ActiveRecord\u3067\u3001validation\u6642\u306bformat\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001 \u6b63\u898f\u8868\u73fe\u306b\u3088\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u30b5\u30f3\u30d7\u30eb \u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9 CREATE TABLE \"articles\" ( \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, \"title\" varchar(255), \"text\" text, \"created_at\" datetime, \"updated_at\" datetime ); Validation class Article < ActiveRecord::Base h\u2026","published":"2014-07-01 22:40:18","categories":["Ruby on Rails"],"blog_title":"Tbpgr Blog"}