dm-is-remixable-example.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'dm-core'
require 'dm-types'
require 'dm-migrations'
require 'dm-is-remixable'

DataMapper.setup(:default, 'mysql://root@localhost/dm_remixable_test')
#########################################################################################################

module Comment
  include DataMapper::Resource
  is :remixable

  property :id,         Serial
  property :body,       String
  property :created_at, DateTime
end

module Addressable
  include DataMapper::Resource

  is :remixable, :suffix => "address"

  property :id,         Serial

  property :label,      String #home, work, etc...

  property :address1,   String, :length => 255
  property :address2,   String, :length => 255

  property :city,       String, :length => 128
  property :state,      String, :length => 2
  property :zip,        String, :length => 5..10
end

module Vote
  include DataMapper::Resource

  is :remixable

  property :id,         Serial
  property :opinion,    Enum["good","bad"]
end

class Location
  include DataMapper::Resource

  remix 1, :addressables

  property :id,         Serial
end

class User
  include DataMapper::Resource

  remix n, :addressables, :as => "addresses"

  enhance :addressables do
    property :label, Enum["work","home"]
  end

  property :id,         Serial
end

class Article
  include DataMapper::Resource

  remix n, :comments, :for => "User"

  property :id,         Serial
end

class Video
  include DataMapper::Resource

  remix n, :comments, :for => "User", :as => "comments"

  enhance :comments do
    def reverse
      return self.body.reverse
    end

    remix 1, :votes, :for => "User"
  end

  property :id,         Serial
end

#########################################################################################################
DataMapper.auto_migrate!

errors.txt

> ruby dm-is-remixable-example.rb   


/usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/associations/relationship.rb:173:in `target_model': Cannot find the child_model VideoCommentVotes for User in video_comment_votes (NameError)
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/associations/relationship.rb:391:in `inverse'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/associations/one_to_many.rb:22:in `child_key'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/associations/one_to_one.rb:81:in `send'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/associations/one_to_one.rb:81:in `method_missing'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/model.rb:793:in `assert_valid'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/model.rb:792:in `each'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/model.rb:792:in `assert_valid'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/model.rb:791:in `each'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/model.rb:791:in `assert_valid'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-migrations-1.0.0/lib/dm-migrations/auto_migration.rb:128:in `auto_migrate!'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-migrations-1.0.0/lib/dm-migrations/auto_migration.rb:45:in `send'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-migrations-1.0.0/lib/dm-migrations/auto_migration.rb:45:in `repository_execute'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/support/descendant_set.rb:68:in `each'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-core-1.0.2/lib/dm-core/support/descendant_set.rb:67:in `each'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-migrations-1.0.0/lib/dm-migrations/auto_migration.rb:44:in `repository_execute'
        from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/dm-migrations-1.0.0/lib/dm-migrations/auto_migration.rb:22:in `auto_migrate!'
        from dm-is-remixable-example.rb:92