ruby-on-rails - 检查 DateTime 值是今天、明天还是之后

Question

我有一个 DateTime 类的对象属性。

我如何理解保存的日期是今天、明天还是更晚？

Answer 1

以下是一些有用的方法来实现它:

datetime = DateTime.now  => Sun, 26 Oct 2014 21:00:00

datetime.today? # => true
datetime.to_date.past? # => false (only based on date)
datetime.to_date.future? # => false  (only based on date)

datetime.to_date == Date.tomorrow # => false
datetime.to_date == Date.yesterday # => false