# This file should contain all the record creation needed to seed the database with its default values. # The data can then be loaded with the rails db:seed command (or created alongside the database with db:setup). # # Examples: # # movies = Movie.create([{ name: 'Star Wars' }, { name: 'Lord of the Rings' }]) # Character.create(name: 'Luke', movie: movies.first) require 'csv' CSV.foreach(File.open('db/us.csv'), headers: true) do |row| data_hash = row.to_hash state = State.find_or_create_by!(name: data_hash['state_name'], abbr: data_hash['state_id']) county = County.find_or_create_by!(name: data_hash['county_name'], state_id: state.id) city = City.find_or_create_by!(name: data_hash['city'], county_id: county.id) end