require 'rubygems' require 'pathname' gem 'dm-core', '~>0.9.7' require 'dm-core' require Pathname(__FILE__).dirname.expand_path / 'dm-is-versioned' / 'is' / 'versioned.rb' # Include the plugin in Resource module DataMapper module Resource module ClassMethods include DataMapper::Is::Versioned end # module ClassMethods end # module Resource end # module DataMapper