From: cies <cies.breijs@...>
Date: 2006-10-24T11:20:27+09:00
Subject: Re: Override Time#to_s -- how?

> > I'd like to override the Time#to_s function to parse Time objects a
> > specific way -- how can I do this from within my script? (Without
> > modifying the Time class itself)

or maybe you want:

irb(main):001:0> class MyTime < Time
irb(main):002:1> def to_s
irb(main):003:2> "time from MyTime"
irb(main):004:2> end
irb(main):005:1> end
=> nil
irb(main):006:0> MyTime.new.to_s

then the Time class is guaranteedly not changed in behavior by the above code...

cies breijs.


On 10/24/06, Wilson Bilkovich <wilsonb@gmail.com> wrote:
> On 10/23/06, Ben Winekur <ben.vinegar@gmail.com> wrote:
> > Hey everyone,
> >
> > I'd like to override the Time#to_s function to parse Time objects a
> > specific way -- how can I do this from within my script? (Without
> > modifying the Time class itself)
> >
> > Thanks,
> > Ben
> >
>
> What do you mean by 'without modifying the Time class itself'?  Isn't
> that precisely what you want to do?
>
> All classes are 'open' in Ruby, so you can simply do:
>
> class Time
>   def to_s
>     "blah"
>   end
> end
>
> If you need access to the original method as well, you can do this:
>
> class Time
>   alias_method :original_to_s, :to_s
>   def to_s
>      "The old to_s method would have said: " + self.original_to_s
>   end
> end
>
>


-- 
"Computer games don't affect kids; I mean if Pac-Man affected us as
kids, we'd all be running around in darkened rooms, munching magic
pills and listening to repetitive electronic music." -- Kristian
Wilson (Nintendo, Inc), 1989