Creating a ! method

ruby-talk
1

One potential way to accomplish this is what I did in my MutableTime class[1]. Create a new class that has an internal Time instance variable and -- when you want to 'round' your time -- replace this instance variable with the new Time instance. Judicious use of #method_missing allows your class to pass off any methods it doesn't understand to the time instance.

[1] File: MutableTime.rb

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________________________________

From: Jamis Buck [mailto:jamis@37signals.com]
Sent: Mon 6/13/2005 11:55 AM
To: ruby-talk ML
Subject: Re: creating a ! method

On Jun 13, 2005, at 11:51 AM, Kurt V. Hindenburg wrote:

Hello,
  I have this code. It works fine but I would like to use
round_to_interval!.
I could not figure out how to code that. Any suggestions?

class Time
   def round_to_interval!
      # how?
   end

   def round_to_interval
      self - (self.min % 10) * 60
   end
end

Time objects are immutable (like numbers, symbols, etc.), so you
cannot alter them directly.

- Jamis