From: Jedrin <jrubiando@...>
Date: 2010-10-06T04:25:11+09:00
Subject: Re: Calling a method with an instance

On Oct 5, 2:59 pm, Paul Roche <prpaulro...@gmail.com> wrote:
> Hi. I'm playing around with creating methods and then creating an
> instance that calls the instance. Here's my code.....
>
> class Discount
> attr_accessor :amount, :discount
>
>  def initialize(am, dis)
> @amount = am
> @discount = dis
>
> end
>
> def self.discount_amount(amt, disc)
> newamount = amt - disc
> end
>
> end
>
> dis1 = Discount.new(100, 20)
>
> dis1.discount_amount(amount, discount)
>
> The error I get is......
>
> discount.rb:25:in `<main>': undefined local variable or method `amount'
> for main
> :Object (NameError)
>
> What is the best way to call a method with an instance?
> Thanks
> --
> Posted viahttp://www.ruby-forum.com/.

I think u want:
dis1.discount_amount(dis1.amount, discount)