Rename contacts.copy_from_id to original_id

Add association

#660

app/models/concerns/domain/transferable.rb

@@ -57,7 +57,7 @@ module Concerns::Domain::Transferable
     oc = c.deep_clone
     oc.code = nil
     oc.registrar_id = registrar_id
-    oc.copy_from_id = c.id
+    oc.original = c
     oc.generate_code
     oc.remove_address unless Contact.address_processing?
     oc.save!(validate: false)

app/models/contact.rb

@@ -3,6 +3,7 @@ class Contact < ActiveRecord::Base
   include EppErrors
   include UserEvents
 
+  belongs_to :original, class_name: self.name
   belongs_to :registrar, required: true
   has_many :domain_contacts
   has_many :domains, through: :domain_contacts

db/migrate/20180123154407_rename_contacts_copy_from_id_to_original_id.rb

@@ -0,0 +1,5 @@
+class RenameContactsCopyFromIdToOriginalId < ActiveRecord::Migration
+  def change
+    rename_column :contacts, :copy_from_id, :original_id
+  end
+end

db/structure.sql

@@ -668,7 +668,7 @@ CREATE TABLE contacts (
     statuses character varying[] DEFAULT '{}'::character varying[],
     status_notes hstore,
     legacy_history_id integer,
-    copy_from_id integer,
+    original_id integer,
     ident_updated_at timestamp without time zone,
     upid integer,
     up_date timestamp without time zone
@@ -4489,7 +4489,7 @@ ALTER TABLE ONLY account_activities
 --
 
 ALTER TABLE ONLY contacts
-    ADD CONSTRAINT fk_rails_c107909cf3 FOREIGN KEY (copy_from_id) REFERENCES contacts(id);
+    ADD CONSTRAINT fk_rails_c107909cf3 FOREIGN KEY (original_id) REFERENCES contacts(id);
 
 
 --
@@ -5060,3 +5060,5 @@ INSERT INTO schema_migrations (version) VALUES ('20180122105335');
 
 INSERT INTO schema_migrations (version) VALUES ('20180123124342');
 
+INSERT INTO schema_migrations (version) VALUES ('20180123154407');
+