On Jul 13, 12:36 am, Buzz Hill <[email protected]>
wrote:
> class PaymentType < ActiveRecord::Base
>
> def self.get_payment_types
> payment_types_all = find(:all, :select => "display_name,
> stored_name" , :order => :display_name)
> # Creates a nested array of [[display_name,
> stored_name],[display_name, stored_name]]
> payment_types = payment_types_all.map {|item| [item.display_name,
> item.stored_name]}
> end
>
> # must be defined after the method. Can't be defined in a method
> PAYMENT_TYPES = get_payment_types
>
> end
>
> Here is some code that works fine, but I don't understand the need for
> the self reference in the def, I will get an undefined variable or
> method error.
>
in a nutshell def self.get_payment_types tells ruby to make a class
method (which is basically a single method on the class object, ie
self) rather than an instance method.
Fred
> I don't understand why I need the self when I am inside the class and I
> don't understand if I need the self, why I can't use
> self.get_payment_types
>
> Thanks
> --
> Posted viahttp://www.ruby-forum.com/.
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