Contents

class AddIndexOnCountryIdOnStates < ActiveRecord::Migration
  def change
    add_index :states, :country_id
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
unico-training-7.8.0	db/migrate/20111017071127_add_index_on_country_id_on_states.rb