class Geocoder::Generators::Maxmind::GeoliteCityGenerator

def self.next_migration_number(dirname)

migration_template method to work)
Define the next_migration_number method (necessary for the 
def self.next_migration_number(dirname)
  if ActiveRecord::Base.timestamped_migrations
    sleep 1 # make sure each time we get a different timestamp
    Time.new.utc.strftime("%Y%m%d%H%M%S")
  else
    "%.3d" % (current_migration_number(dirname) + 1)
  end
end

def copy_migration_files 

def copy_migration_files
  migration_template "migration/geolite_city.rb", "db/migrate/geocoder_maxmind_geolite_city.rb"
end