{"author_url":"https://blog.hatena.ne.jp/hatappi1225/","version":"1.0","blog_title":"hatappi.blog","width":"100%","published":"2017-04-13 20:15:05","blog_url":"https://hatappi.blog/","image_url":null,"categories":[],"url":"https://hatappi.blog/entry/2017/04/13/201505","provider_url":"https://hatena.blog","description":"\u4eca\u56de\u306fRails v5.0.2\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059 Rails\u3067model\u306b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u3064\u3051\u308b\u304c\u3053\u306e\u6642\u3060\u3051\u306foff\u306b\u3057\u305f\u3044\u3068\u3044\u3046\u6642\u304c\u3042\u308b\u3002 \u4f8b\u3048\u3070\u7279\u5b9a\u306e\u30d0\u30c3\u30c1\u8d70\u3089\u305b\u308b\u6642\u3068\u304b\uff1f \u4f8b\u3048\u3070\u4eca\u56de\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u305f\u3068\u3057\u3066 class Item < ApplicationRecord # name\u304c\u30e6\u30cb\u30fc\u30af\u304b\u3064\u6587\u5b57\u6570\u304c1\u304b\u308910\u6587\u5b57\u5185\u306b\u304a\u3055\u307e\u3063\u3066\u3044\u308b\u304b validates :name, uniqueness: true, length: { in: 1..10 } end \u3053\u306e Item \u30e2\u30c7\u30eb\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u3059\u3079\u3066OFF\u306b\u3059\u308b\u306a\u3089 item = Item.new(name: '\u2026","author_name":"hatappi1225","provider_name":"Hatena Blog","title":"Rails\u3067\u3053\u306e\u6642\u3060\u3051\u7279\u5b9a\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u691c\u8a3c\u3057\u305f\u304f\u306a\u3044\u3068\u304d\u3057\u305f\u3053\u3068","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhatappi.blog%2Fentry%2F2017%2F04%2F13%2F201505\" title=\"Rails\u3067\u3053\u306e\u6642\u3060\u3051\u7279\u5b9a\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u691c\u8a3c\u3057\u305f\u304f\u306a\u3044\u3068\u304d\u3057\u305f\u3053\u3068 - hatappi.blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","height":"190"}