Update Region Seed Data for Idempotence

Ensure that region seed data will not create duplicate entries if it is run more than once.

core/db/default/spree/countries.rb

@@ -1,17 +1,13 @@
 require 'carmen'
 
-countries = []
-Carmen::Country.all.each do |country|
- countries << {
- name: country.name,
- iso3: country.alpha_3_code,
- iso: country.alpha_2_code,
- iso_name: country.name.upcase,
- numcode: country.numeric_code,
- states_required: country.subregions?
- }
-end
-
 ActiveRecord::Base.transaction do
- Spree::Country.create!(countries)
+ Carmen::Country.all.each do |country|
+ Spree::Country.where(iso: country.alpha_2_code).first_or_create!(
+ name: country.name,
+ iso3: country.alpha_3_code,
+ iso_name: country.name.upcase,
+ numcode: country.numeric_code,
+ states_required: country.subregions?
+ )
+ end
 end

core/db/default/spree/states.rb

@@ -1,15 +1,12 @@
 ActiveRecord::Base.transaction do
  Spree::Country.all.each do |country|
- carmen_country = Carmen::Country.named(country.name)
- @states ||= []
+ carmen_country = Carmen::Country.coded(country.iso)
  next unless carmen_country.subregions?
+
  carmen_country.subregions.each do |subregion|
- @states << {
- name: subregion.name,
- abbr: subregion.code,
- country: country
- }
+ Spree::State.where(abbr: subregion.code, country: country).first_or_create!(
+ name: subregion.name
+ )
  end
  end
- Spree::State.create!(@states)
 end