Question

使用带有日期时间范围的Ruby Range#include?会引发异常：

> (Time.zone.now.beginning_of_day..Time.zone.now.end_of_day).include?(Time.zone.now)
TypeError: can't iterate from ActiveSupport::TimeWithZone

使用Rails＆＃39; Range#overlaps?有效：

> (Time.zone.now.beginning_of_day..Time.zone.now.end_of_day).overlaps?(Time.zone.now..Time.zone.now)
=> true

我不喜欢这样一个事实：我必须创建一个单元素范围以使用overlaps?检查包含是否有办法在Rails中使用include?和日期时间范围？

Answer 1

啊哈！

这是怎么回事？

Time.zone.now.between?(Time.zone.now.beginning_of_day,Time.zone.now.end_of_day)

结果：

2.3.0 :001 > Time.zone.now.between?(Time.zone.now.beginning_of_day,Time.zone.tomorrow.end_of_day)
 => true 
2.3.0 :002 > Time.zone.tomorrow.between?(Time.zone.now.beginning_of_day,Time.zone.now.end_of_day)
 => false 
2.3.0 :003 > Time.zone.yesterday.between?(Time.zone.now.beginning_of_day,Time.zone.now.end_of_day)

参考：http://apidock.com/rails/ActiveSupport/TimeWithZone/between%3F

如何在Rails的范围内检查日期时间是否包含在内？

1 个答案: