Announcement:
Composite Primary Keys gem now includes support for ActiveRecord
Associations.
Summary:
Composite Primary Keys allows an ActiveRecord to support 2+ primary keys
using the set_primary_keys class method. Previous versions provided full
CRUD and find support. This latest release provides support for more
ActiveRecord magic: associations (has_many, belongs_to, etc)
Full report:
http://drnicwilliams.com/2006/08/02/composite-primary-keys-supports-associations/
Cheers
Dr Nic