gist: 215552


  
    
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              #!/usr/bin/env ruby -Ku
 
# encoding: utf-8
 
require 'rubygems'
require 'dm-core'
 
DataMapper::Logger.new($stdout, :debug)
DataMapper.setup(:default, 'sqlite3::memory:')
 
class Post
  include DataMapper::Resource
 
  property :id,    Serial
  property :title, String
end
 
DataMapper.auto_migrate!
 
puts '-' * 132
 
p1 = Post.new
p2 = p1.dup
p p1 == p2  # => true (correct)
 
p2.title = "x"
p p1 == p2  # => false (correct)
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