{"width":"100%","provider_url":"https://hatena.blog","height":"190","author_url":"https://blog.hatena.ne.jp/willnet/","description":"rails \u304c\u8ffd\u52a0\u3057\u3066\u3044\u308b\u30e1\u30bd\u30c3\u30c9\u3002\u771f\u306a\u3089\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u81ea\u8eab\u3092\u8fd4\u3057\u3066\u3001\u507d\u306a\u3089 nil \u3092\u8fd4\u3059\u3002 object.present? ? object : nil. \u3068\u540c\u3058\u3002\u4e0b\u8a18\u306e\u3088\u3046\u306a\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u4f7f\u3046\u3088\u304f\u3042\u308b\u611f\u3058\u306e\u30b3\u30fc\u30c9\u304c state = params[:state] if params[:state].present? country = params[:country] if params[:country].present? region = state || country || 'US' \u3053\u3093\u306a\u98a8\u306b\u4e00\u884c\u306b\u307e\u3068\u307e\u308b\u3002\u4fbf\u5229\u304b\u3082\uff1f region = params[:state].p\u2026","published":"2011-05-25 03:07:23","blog_title":"\u304a\u3082\u3057\u308dweb\u30b5\u30fc\u30d3\u30b9\u958b\u767a\u65e5\u8a18","title":"Object#presence","blog_url":"https://blog.willnet.in/","author_name":"willnet","url":"https://blog.willnet.in/entry/20110525/1306346843","provider_name":"Hatena Blog","categories":["rails"],"image_url":null,"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.willnet.in%2Fentry%2F20110525%2F1306346843\" title=\"Object#presence - \u304a\u3082\u3057\u308dweb\u30b5\u30fc\u30d3\u30b9\u958b\u767a\u65e5\u8a18\" 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"}