From: Chris Czub <chris.czub@...>
Date: 2007-10-26T07:19:36+09:00
Subject: Re: Need help understanding metaclassing

Robert Dober wrote:
> On 10/25/07, Chris Czub <chris.czub@gmail.com> wrote:
>> Why can't I use the attribute accessor? Rather - I understand why I
>> can't, because it was created in the User class rather than the
>> DefaultUser class, but how can I get access to it?
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>>
> 
> class User
>     @users = {}
>      class << self
>          attr_reader :users
>      end
>      def initialize name
>          email = nil
>          loop do
>             email = "#{name}@#{rand 1000}"
>             break unless self.class.users[ email ]
>          end
>          self.class.users[ email ] = self
>          ....
> 
> is this what you want?
> R.

I don't really want to define it in the User class, because it might not 
belong to a particular user... maybe I am not making sense.

I am writing a testing application for many web sites that require user 
registrations. Each website requires similar users, but different ones 
might have additional fields required of a user, so my idea is to create 
a metaclass of user for each user configuration a website might require. 
So, for a web site based in the UK, the metaclass looks like this:

class UKUser < User
  attribs :address3, :i_own_or_work_for_a_small, 
:my_small_business_has_its, :yes_please_send_me_the_mi, :postal
  first_name( "John" )
  last_name( "Doe" )
  email( "john.doe#{rand(100)}@abc.com" )
  address1( "1 Sunshine Parkway" )
  address2( "" )
  address3( "" )
  city( "London" )
  postal( "EH15 2JJ" )
  gender( "male" )
  phone( "(555)123-4567" )
  age( "18-25" )
        my_small_business_has_its( "no" )
        i_own_or_work_for_a_small( "no" )
        yes_please_send_me_the_mi( "no" )
end





So I am able to say

user = UKUser.new
user.address3("Apartment 12")
user.my_small_business_has_its("yes")

However, I cannot do this:

user.email("bob.smith@abc.com")


Any ideas?
-- 
Posted via http://www.ruby-forum.com/.