mysql_and_sqlite3_example.rb

require 'rubygems'
require 'dm-core'

DataMapper::Logger.new(STDOUT, :debug)
DataMapper.setup(:default, 'mysql://root:@localhost/test')
DataMapper.setup(:logs,    "sqlite3:///tmp/test.db")

class LoggedEvent
  include DataMapper::Resource

  def self.default_repository_name; :logs; end

  property :id,     Serial
  property :action, String

  belongs_to :user
  
end

class User
  include DataMapper::Resource

  property :id,   Serial
  property :name, String

  has n, :logged_events, :repository => :logs

end

DataMapper.auto_migrate!

user = User.create(:name => 'jola')
user.logged_events.create(:action => 'bazinga!')
user.logged_events.create(:action => 'foo')
user.logged_events.create(:action => 'bar')

puts '-' * 80

p user.logged_events(:action => [ 'foo','bar'])
p LoggedEvent.all(:user => user, :action => ['bazinga!', 'foo'])

output.txt

/Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/associations/relationship.rb:211:in `parent_model': Cannot find the parent_model User for LoggedEvent in user (NameError)
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/associations/relationship.rb:237:in `parent_key'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/associations/many_to_one.rb:45:in `child_key'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/model.rb:708:in `assert_valid'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/model.rb:707:in `each_value'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/model.rb:707:in `assert_valid'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/model.rb:706:in `each_value'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/model.rb:706:in `assert_valid'
	from /Library/Ruby/Gems/1.8/gems/dm-core-0.10.2/lib/dm-core/migrations.rb:1310:in `auto_migrate!'
	from dm-repository-issue.rb:17