ruby-on-rails - 查找两个日期范围之间的日期范围

Question

我想知道 Ruby 是否有一种简单的方法来查找两个日期范围之间的所有日期范围。我有两个日期数组：一个数组，January 01, 08:00另一个数组。我想返回一个数组，如：January 01, 12:00January 01, 09:00 to January 01, 10:00

January 1, 08:00 to January 1, 09:00

和：

January 1, 10:00 to January 1, 12:00

Answer 1

这是一种方法：

date_array_1, date_array_2 = [
  'January 01, 08:00', 'January 01, 12:00',
  'January 01, 09:00', 'January 01, 10:00'
].map{ |s| DateTime.parse(s) }.each_slice(2).to_a

这设置了两个日期数组。

require 'date'

def date_ranges(ary1, ary2)
  [
    ary1,
    ary2
  ].flatten.sort.each_slice(2).map{ |s| s.first .. s.last }
end

puts date_ranges(date_array_1, date_array_2)

哪个输出：

2013-01-01T08:00:00+00:00..2013-01-01T09:00:00+00:00
2013-01-01T10:00:00+00:00..2013-01-01T12:00:00+00:00

---

如果我想让 date_array_2 成为日期数组？这简单吗？像 date_array_1 = ['January 01, 08:00', 'January 01, 13:00'] date_array_2 = [['January 01, 09:00', 'January 01, 10:00'], ['January 01, 11:00', '1 月 1 日 12:00']]

两个日期数组如下所示：

date_array_1 = ['January 01, 08:00', 'January 01, 12:00']
date_array_2 = ['January 01, 09:00', 'January 01, 10:00']

将它们强制转换为 DateTime 对象：

[ date_array_1, date_array_2 ].map{ |a| a.map!{ |d| DateTime.parse(d) } }