Contents

class AddCityIdToUnicoStreets < ActiveRecord::Migration
  def change
    add_column :unico_streets, :city_id, :integer
    add_index :unico_streets, :city_id
    add_foreign_key :unico_streets, :unico_cities, column: :city_id

    Street.find_each do |street|
      neighborhood = street.neighborhoods.first

      street.update_column :city_id, neighborhood.city_id if neighborhood
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
unico-training-7.8.0	db/migrate/20121025165054_add_city_id_to_unico_streets.rb