Rails - May 2007 - Polymorphic has_many :images, :through => [...] - possible?

I have a polymorphic image model (profiles have images, products have
images, user has a profile, user has products). I''d like to be able to
access all of a user''s images regardless of which model they represent.
This doesn''t work:

has_many :images, :through => [:profile, :products]

... as :through => doesn''t work with an array.

Of course I could add a user_id column to the Image table, but I wanted
to see if this concept was possible first.

Any ideas?

=======CODE
=======
class User < ActiveRecord::Base
  has_one :profile
  has_many :products

  has_many :images, :through => [:profile, :products]
end

class Profile < ActiveRecord::Base
  belongs_to :user
  has_many :images, :as => :imageable
end

class Product < ActiveRecord::Base
  belongs_to :user
  has_many :images, :as => :imageable
end


=======ROUTES
=======
map.resources :profiles do |profile|
  profile.resources :images, :name_prefix => ''profile_''
end

map.resources :products do |product|
  product.resources :images, :name_prefix => ''product_''
end

-- 
Posted via http://www.ruby-forum.com/.

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On 5/10/07, Adam Roth
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
>   has_many :images, :through => [:profile, :products]
>
Your through should be based on the polymorphic class name, have you tried?

  has_many :images, :through => :imageable

You may want to try the has_many_polymorphs plugin to help you out too.
http://rubyforge.org/projects/polymorphs/

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