dkubb (owner)

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gist: 181518 Download_button fork
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#!/usr/bin/env ruby -KU
 
require 'rubygems'
require 'dm-core'
require 'dm-validations'
require 'pp'
 
DataMapper::Logger.new($stdout, :debug)
DataMapper.setup(:default, 'sqlite3::memory:')
 
class League
  include DataMapper::Resource
 
  property :id,       Serial
  property :name,     String, :nullable => false, :unique => true
  property :irc,      String
  property :homepage, String
 
  has n, :league_users
  has n, :users, :through => :league_users
end
 
class LeagueUser
  include DataMapper::Resource
 
  property :id, Serial
 
  belongs_to :user
  belongs_to :league
end
 
class User
  include DataMapper::Resource
 
  property :id,     Serial
  property :login,  String, :nullable => false, :unique => true
 
  has n, :league_users
  has n, :leagues, :through => :league_users
end
 
DataMapper.auto_migrate!
 
puts '-' * 80
 
user = User.new(:login => 'login')
 
pp user.valid?
pp user.errors