gistfile1.txt

require 'rubygems'

# built off of next
gem 'dm-core', '0.10.0'
require 'dm-core'

DataMapper.setup(:default, :adapter => :in_memory)

module Blog
  
  class Post
    include DataMapper::Resource
    
    property :id, Serial
    has 1, :comment
  end
  
  class Comment
    include DataMapper::Resource
    
    property :id, Serial
  end
  
end

post = Blog::Post.new(:comment => Blog::Comment.new)

gistfile2.txt

/Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/many_to_one.rb:130:in `create_reader': compile error (SyntaxError)
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/many_to_one.rb:128: syntax error, unexpected '/', expecting '\n' or ';'
            def blog/post(query = nil)             ...
                     ^
/Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/many_to_one.rb:130: syntax error, unexpected kEND, expecting $end
            end                                               # end
               ^
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:338:in `initialize'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/many_to_one.rb:107:in `initialize'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:384:in `new'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:384:in `invert'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:301:in `inverse'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:149:in `source_scope'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/relationship.rb:157:in `query_for'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/associations/one_to_many.rb:42:in `collection_for'
	 ... 8 levels...
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/resource.rb:691:in `initialize'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/model.rb:459:in `send'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.0/lib/dm-core/model.rb:459:in `new'
	from /Users/carl/Desktop/example.rb:25