GitHub - ebertech/composite_primary_keys: Composite Primary Keys support for Active Record

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lib		lib
scripts		scripts
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README.txt		README.txt
README_DB2.txt		README_DB2.txt
Rakefile		Rakefile
composite_primary_keys.gemspec		composite_primary_keys.gemspec
init.rb		init.rb
install.rb		install.rb
loader.rb		loader.rb

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= 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/group/compositekeys

== Author

Written by Dr Nic Williams, drnicwilliams@gmail.
Contributions by many!