From: Olivier Renaud <o.renaud@...>
Date: 2007-03-20T02:29:55+09:00
Subject: Re: Sorting Dates and Times in an array

Le lundi 19 mars 2007 18:25, Robert Klemme a �crit�:
> 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

Yes you're right, I just kept in mind the instruction "sort the dates !". But 
I missed the subtlelty. Thanks.

-- 
Olivier Renaud