From: Vincent Fourmond <vincent.fourmond@9online.fr>
Date: 2006-09-20T20:30:49+09:00
Subject: Re: simple code doesnt work


  Hello Vince ;-) !

> 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 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 define the price= method, but you don't define the price method.
You can't access to instance variables from outside the instance unless
you explicitly allow it via appropriate accessors. In your case,
replacing the price= definition by

attr_accessor :price

should work pretty well. You might want to use attr_reader to only grant
read acces to an instance variable or attr_writer to only grant write
access.

  Enjoy !

	Vince (yet another one...)