{"author_name":"griefworker","categories":["Ruby","Rails"],"author_url":"https://blog.hatena.ne.jp/griefworker/","published":"2014-05-08 20:50:24","height":"190","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftnakamura.hatenablog.com%2Fentry%2F2014%2F05%2F08%2F205024\" title=\"Rails \u3067\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u4f7f\u3046\u65b9\u6cd5 - present\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"blog_title":"present","blog_url":"https://tnakamura.hatenablog.com/","provider_name":"Hatena Blog","version":"1.0","title":"Rails \u3067\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u4f7f\u3046\u65b9\u6cd5","provider_url":"https://hatena.blog","width":"100%","url":"https://tnakamura.hatenablog.com/entry/2014/05/08/205024","description":"Rails \u3067\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u8a2d\u5b9a\u3057\u305f\u3044\u306a\u3089\u3001foreigner \u3092\u4f7f\u3046\u306e\u304c\u826f\u3055\u305d\u3046\u3002 matthuhiggins/foreigner foreigner \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3068\u3001\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3002 \u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u6642\u306a\u3089 class CreateComments < ActiveRecord::Migration def change create_table do |t| t.reference :entry t.string :content t.timestamp t.foreign_key :entries, dependent: :delete end end e\u2026"}