datamapper.rb

require 'data_mapper'

# Add a logger, for debugging
DataMapper::Logger.new($stdout, :fatal)

# Add a convenience wrapper for debugging
module DataMapper
  def self.debug
    original_log_level = logger.level
    logger.level = DataMapper::Logger::Levels[:debug]
    yield
  ensure
    logger.level = original_log_level
  end
end