{"provider_name":"Hatena Blog","categories":["Rails"],"author_name":"LukeSilvia","image_url":null,"width":"100%","url":"https://lukesilvia.hatenablog.com/entry/20080316/1205644760","description":"\u4eca\u56de\u3001rails\u3067\u30d6\u30fc\u30eb\u578b\u3092\u4f7f\u3063\u305f\uff08\u6b63\u78ba\u306b\u306fmigration\u306etype\u306b:boolean\u3092\u6307\u5b9a\u3057\u305f\uff09\u306e\u3067\u3001Rails\u3067\u30d6\u30fc\u30eb\u578b\u3092\u4f7f\u3046\u969b\u306e\u6ce8\u610f\u306a\u3069\u3092\u30e1\u30e2\u3057\u3066\u304a\u304d\u307e\u3059\u3002 \u30d6\u30fc\u30eb\u578b\u306e\u6271\u3044 \u30c6\u30fc\u30d6\u30eb\u306e\u30ab\u30e9\u30e0\u3092\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u5b9a\u7fa9\u3059\u308b\u969b\u306b\u4ee5\u4e0b\u306e\u69d8\u306b\u3059\u308b\u3068\u3001Rails\u306f\u305d\u306e\u30ab\u30e9\u30e0\u3092\u30d6\u30fc\u30eb\u578b\u3068\u3057\u3066\u6271\u3046\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \u30d6\u30fc\u30eb\u578b\u30ab\u30e9\u30e0\u306e\u5b9a\u7fa9 def self.up create_table(:users) do |table| table.column :active, :boolean, :null => false, :default => true end end def self.down dro\u2026","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Flukesilvia.hatenablog.com%2Fentry%2F20080316%2F1205644760\" title=\"Rails\u3067\u306e\u30d6\u30fc\u30eb\u578b(Boolean)\u306e\u6271\u3044 - LukeSilvia\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/LukeSilvia/","blog_title":"LukeSilvia\u2019s diary","title":"Rails\u3067\u306e\u30d6\u30fc\u30eb\u578b(Boolean)\u306e\u6271\u3044","version":"1.0","height":"190","type":"rich","blog_url":"https://lukesilvia.hatenablog.com/","published":"2008-03-16 14:19:20"}