Migrate country id-s to country codes

Gemfile

@@ -51,6 +51,9 @@ gem 'daemons',  '~> 1.1.9' # process delayed jobs
 # monitors
 gem 'newrelic_rpm', '~> 3.9.9.275'
 
+# country listing
+# gem 'countries', '~> 0.10.0'
+
 group :development do
   # dev tools
   gem 'spring',                '~> 1.2.0'

app/models/address.rb

@@ -8,7 +8,7 @@ class Address < ActiveRecord::Base
   ]
 
   belongs_to :contact
-  belongs_to :country
+  belongs_to :country_deprecated, foreign_key: "country_id"
 
   has_paper_trail class_name: 'AddressVersion'
 

app/models/country_deprecated.rb

@@ -1,4 +1,6 @@
-class Country < ActiveRecord::Base
+class CountryDeprecated < ActiveRecord::Base
+  self.table_name = "countries"
+
   def to_s
     name
   end

app/models/registrar.rb

@@ -1,5 +1,5 @@
 class Registrar < ActiveRecord::Base
-  belongs_to :country
+  belongs_to :country_deprecated, foreign_key: "country_id"
   has_many :domains, dependent: :restrict_with_error
   has_many :contacts, dependent: :restrict_with_error
   has_many :api_users, dependent: :restrict_with_error

app/models/user.rb

@@ -6,7 +6,7 @@ class User < ActiveRecord::Base
   # After activisation, system should require to change temp password.
   # TODO: Estonian id validation
 
-  belongs_to :country
+  belongs_to :country_deprecated, foreign_key: "country_id"
 
   validates :username, :password, presence: true
   validates :identity_code, uniqueness: true, allow_blank: true

db/migrate/20150202084444_refactor_countries.rb

@@ -0,0 +1,22 @@
+class RefactorCountries < ActiveRecord::Migration
+  def change
+    add_column :registrars, :country_code, :string
+    add_column :users, :country_code, :string
+    add_column :addresses, :country_code, :string
+
+    Registrar.all.each do |x|
+      x.country_code = x.country_deprecated.try(:iso)
+      x.save(validate: false)
+    end
+
+    User.all.each do |x|
+      x.country_code = x.country_deprecated.try(:iso)
+      x.save(validate: false)
+    end
+
+    Address.all.each do |x|
+      x.country_code = x.country_deprecated.try(:iso)
+      x.save(validate: false)
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150130085458) do
+ActiveRecord::Schema.define(version: 20150202084444) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -37,6 +37,7 @@ ActiveRecord::Schema.define(version: 20150130085458) do
     t.datetime "updated_at"
     t.string   "street2",      limit: 255
     t.string   "street3",      limit: 255
+    t.string   "country_code"
   end
 
   create_table "api_users", force: :cascade do |t|
@@ -206,7 +207,6 @@ ActiveRecord::Schema.define(version: 20150130085458) do
     t.string   "name",             limit: 255
     t.integer  "registrar_id"
     t.datetime "registered_at"
-    t.string   "status",           limit: 255
     t.datetime "valid_from"
     t.datetime "valid_to"
     t.integer  "owner_contact_id"
@@ -217,6 +217,7 @@ ActiveRecord::Schema.define(version: 20150130085458) do
     t.string   "name_puny",        limit: 255
     t.integer  "period"
     t.string   "period_unit",      limit: 1
+    t.string   "status"
   end
 
   create_table "epp_sessions", force: :cascade do |t|
@@ -296,6 +297,7 @@ ActiveRecord::Schema.define(version: 20150130085458) do
     t.string   "phone"
     t.string   "email"
     t.string   "billing_email"
+    t.string   "country_code"
   end
 
   create_table "reserved_domains", force: :cascade do |t|
@@ -329,6 +331,7 @@ ActiveRecord::Schema.define(version: 20150130085458) do
     t.string   "identity_code",      limit: 255
     t.integer  "country_id"
     t.string   "roles",                                                   array: true
+    t.string   "country_code"
   end
 
   create_table "version_associations", force: :cascade do |t|