From: Jan Svitok <jan.svitok@...>
Date: 2006-09-20T20:33:50+09:00
Subject: Re: simple code doesnt work

On 9/20/06, Vince /. <totalharmonicdistortion@hotmail.com> wrote:
> Hi everyone,
>
> Can anyone tell me why this doesnt work?
>
> Im getting this error
> cf.rb:26: undefined method `price' for #<Ticket:0x27ed554
> @d="11/12/2006", @price=5.0, @v="yer"> (NoMethodError)
>
> thanks, just learning :-)
>
>
> class Ticket
>
>         def initialize(venue,date)
>                 @v = venue
>                 @d = date
>         end
>
>         def venue
>                 @v
>         end
>
>         def date
>                 @d
>         end
>
>         def price=(amount)
>                 @price = amount
>         end
> end
>
> ticket = Ticket.new("yer","11/12/2006")
> puts "ticket stuff is #{ticket.venue} #{ticket.date}"
>
> ticket.price = (5.00)
>
> puts "ticket mooch is #{ticket.price}"

You need to define attribute reader:

def price
  @price
end

BTW, you could accomplish the same by using
attr_reader(R)/attr_writer(W)/attr_accessor(RW):
(if you'd rename @v, @d to @venue, @date respectively)

> class Ticket
>
>         def initialize(venue,date)
>                 @venue, @date = venue, date
>         end
           attr_reader :venue, :date # this will create venue() and date()
           attr_accessor :price  # this will create price=() and price()
> end