Attach nameservers directly to domain

app/models/domain.rb

@@ -3,7 +3,6 @@ class Domain < ActiveRecord::Base
   #TODO most inputs should be trimmed before validatation, probably some global logic?
 
   belongs_to :registrar
-  belongs_to :ns_set
   belongs_to :owner_contact, class_name: 'Contact'
 
   has_many :domain_contacts
@@ -16,6 +15,7 @@ class Domain < ActiveRecord::Base
     where(domain_contacts: {contact_type: Contact::CONTACT_TYPE_ADMIN})
   }, through: :domain_contacts, source: :contact
 
+  has_and_belongs_to_many :nameservers
 
   validates_presence_of :name
 

app/models/nameserver.rb

@@ -1,3 +1,4 @@
 class Nameserver < ActiveRecord::Base
-  has_and_belongs_to_many :ns_sets
+  belongs_to :registrar
+  has_and_belongs_to_many :domains
 end

db/migrate/20140731081816_add_nameservers_to_domain.rb

@@ -0,0 +1,8 @@
+class AddNameserversToDomain < ActiveRecord::Migration
+  def change
+    create_table :domains_nameservers do |t|
+      t.integer :domain_id
+      t.integer :nameserver_id
+    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: 20140730141443) do
+ActiveRecord::Schema.define(version: 20140731081816) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -74,6 +74,11 @@ ActiveRecord::Schema.define(version: 20140730141443) do
     t.integer  "period"
   end
 
+  create_table "domains_nameservers", force: true do |t|
+    t.integer "domain_id"
+    t.integer "nameserver_id"
+  end
+
   create_table "epp_sessions", force: true do |t|
     t.string   "session_id"
     t.text     "data"

spec/models/domain_spec.rb

@@ -2,7 +2,7 @@ require "rails_helper"
 
 describe Domain do
   it { should belong_to(:registrar) }
-  it { should belong_to(:ns_set) }
+  it { should have_and_belong_to_many(:nameservers)}
   it { should belong_to(:owner_contact) }
   it { should have_many(:tech_contacts) }
   it { should have_many(:admin_contacts) }

spec/models/nameserver_spec.rb

@@ -1,5 +1,5 @@
 require "rails_helper"
 
 describe Nameserver do
-  it { should have_and_belong_to_many(:ns_sets) }
+  it { should have_and_belong_to_many(:domains) }
 end