ruby-on-rails - Rails 3/Ruby 1.9.2 Date.tomorrow 不正确

Question

在 Mac Snow leopard 上使用 Ruby 1.9.2 和 Rail 3

ruby-1.9.2-p290 :001 > Date.today
 => Sun, 25 Sep 2011 
ruby-1.9.2-p290 :002 > Date.tomorrow
 => Tue, 27 Sep 2011 

ruby 日期类是否有问题，或者这与我安装 ruby​​ 的方式有关吗？

编辑:

ruby-1.9.2-p290 :039 > Date.current
 => Mon, 26 Sep 2011 
ruby-1.9.2-p290 :040 > DateTime.now
 => Sun, 25 Sep 2011 20:47:01 -0500

好吧，rails Date 类似乎有点问题。 DateTime 类似乎工作正常。感谢 derp 和 Adam

Answer 1

在网上查找资料，发现了这个:
https://rails.lighthouseapp.com/projects/8994/tickets/6410-dateyesterday-datetoday

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检查最后一条评论:

I do agree with you that its a bit confusing that you need to use Date.current with Date.yesterday instead of Date.today, but the general rule of thumb is Rails does not change how Ruby methods work, which Date.today is. All we can do is add better documentation and make sure people are aware of the subtle difference.

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换句话说，使用 current(rails) 而不是 today(ruby) 来避免问题。