def load_continent_refs( name )
    reader = create_hash_reader( name )

    reader.each do |key, value|
      country = Country.find_by_key!( key )
      continent = Continent.find_by_key!( value )
      country.continent_id = continent.id
      country.save!
    end
  end
def load_continent_refs( name )
    reader = create_hash_reader( name )

    reader.each do |key, value|
      country = Country.find_by_key!( key )
      continent = Continent.find_by_key!( value )
      country.continent_id = continent.id
      country.save!
    end
  end
use ContinentRefReader