domain and subdomain ownership wiring

app/controllers/domains_controller.rb

@@ -31,7 +31,7 @@ class DomainsController < ApplicationController
     
   def before_create_save(record)
     record.type = 'NATIVE'
-    record.user = current_user
+    record.user = record.parent_domain.present? ? record.parent_domain.user : current_user
   end
 
   def after_create_save(record)

app/models/domain.rb

@@ -56,6 +56,7 @@ class Domain < ActiveRecord::Base
   end
   
   def parent_domain
+    return nil if name.nil?
     @parent_domain ||= {}
     @parent_domain[name] ||= begin
       segments = name.split('.')

spec/controllers/domains_controller_spec.rb

@@ -1,7 +1,41 @@
 require 'spec_helper'
 
 describe DomainsController do
-  it_should_behave_like "wiring controller"
+  
+  context "wiring" do
+    include_context "data"
+    
+    # a domain who's parent domain is not in our system
+    context "domain" do
+      before do
+        sign_in user
+      end
+
+      it "is wired with the current user by #new_model" do
+        @controller.send(:new_model).user.should == user
+      end
+    
+      it "is wired with the current user by #before_create_save" do
+        domain = build(:domain)
+        @controller.send(:before_create_save, domain)
+        domain.user.should == user
+      end
+    end
+    
+    # a domain who's parent domain is in our system
+    context "subdomain" do
+      before do
+        sign_in other_user
+      end
+      
+      it "is wired with the user of the parent domain by #before_create_save" do
+        subdomain = build(:domain, :user => other_user, :name => "x.#{domain.name}")
+        @controller.send(:before_create_save, subdomain)
+        subdomain.user.should == user
+      end
+    end
+    
+  end
 end
 
 # TODO implement me