From: "W. Kent Starr" <elderburn@...>
Date: 2001-02-22T22:59:14+09:00
Subject: [ruby-talk:11313] Re: Time without seconds...

On Thursday 22 February 2001 08:44, David Alan Black wrote:
> On Thu, 22 Feb 2001, DaVinci wrote:
> >  Hi.
> >
> >  I want to get a Time instance without seconds (round minutes). I have
> >  probed next class:
> >
> >  	class MyTime < Time
> > 		def initialize
> > 			super
> > 			self -= sec
> > 		end
> > 	end
> >
> >  but it doesn't work. I get error:
> >
> >  	Can't change the value of self
> >
> >  Is any form of doing this?.
>
> You could add a method to class Time:
>
>   class Time
>     def round_to_m
>       self - sec
>     end
>   end
>
>   t = Time.new
>   p t
>   p t.round_to_m
>
>

Except that you might want to name the method 'floor' in that, by always 
_subtracting_ sec, you are always rounding down to the minute.

Regards,

Kent Starr
elderburn@mindspring.com