= Composite Primary Keys for ActiveRecords == Summary ActiveRecords/Rails famously doesn't support composite primary keys. This RubyGem extends the activerecord gem to provide CPK support. == Installation gem install composite_primary_keys == Usage require 'composite_primary_keys' class ProductVariation set_primary_keys :product_id, :variation_seq end pv = ProductVariation.find(345, 12) It even supports composite foreign keys for associations. See http://compositekeys.rubyforge.org for more. == Running Tests See test/README.tests.txt == Url http://compositekeys.rubyforge.org == Questions, Discussion and Contributions http://groups.google.com/compositekeys == Author Written by Dr Nic Williams, drnicwilliams@gmail Contributions by many!