Domain statuses improvements

app/models/domain_status.rb

@@ -1,4 +1,25 @@
 class DomainStatus < ActiveRecord::Base
+  # Domain statuses are stored as settings
+  include EppErrors
+
+  EPP_ATTR_MAP = {
+    setting: 'status'
+  }
+
   belongs_to :domain
   belongs_to :setting
+
+  delegate :value, :code, to: :setting
+
+  validates :setting, uniqueness: { scope: :domain_id }
+
+  def setting_uniqueness
+
+  end
+
+  def epp_code_map
+    {
+      '2302' => [[:setting, :taken]]
+    }
+  end
 end