From: Robert Klemme <shortcutter@...>
Date: 2007-03-20T02:25:08+09:00
Subject: Re: Sorting Dates and Times in an array

On 19.03.2007 18:04, Olivier Renaud wrote:

> Instead of comparing arrays that contains one element for the date and another 
> element for the time, we could have created only one Time object representing 
> both :
> 
> @date_array.sort_by {|ary| Time.parse("#{ary.first} #{ary.last}") }

I think this does not meet the OP's requirements (because of descending 
date).

epoch = Date.new(0)
@date_array.sort_by {|dt,tm| [epoch - Date.parse(dt), Time.parse(tm)]}

Substraction with epoch will make date components negative and thus lead 
to descending ordering.

Kind regards

	robert