added .parent method to Page drop

lib/locomotive/liquid/drops/page.rb

@@ -12,6 +12,10 @@ module Locomotive
         def slug
           self._source.templatized? ? self._source.content_type.slug.singularize : self._source.slug
         end
+        
+        def parent
+          @parent ||= self._source.parent.to_liquid
+        end
 
         def children
           @children ||= liquify(*self._source.children)

spec/factories.rb

@@ -98,6 +98,14 @@ Factory.define :page do |p|
   p.site { Site.where(:subdomain => "acme").first || Factory(:site) }
 end
 
+Factory.define :sub_page, :parent => :page do |p|
+  p.title 'Subpage'
+  p.slug 'subpage'
+  p.published true
+  p.site { Site.where(:subdomain => "acme").first || Factory(:site) }
+  p.parent { Page.where(:slug => "index").first || Factory(:page) }
+end
+
 
 ## Snippets ##
 Factory.define :snippet do |s|

spec/lib/locomotive/liquid/drops/page_spec.rb

@@ -40,6 +40,18 @@ describe Locomotive::Liquid::Drops::Page do
     end
 
   end
+  
+  context '#parent' do
+    before(:each) do
+      @sub_page = Factory.build(:sub_page, :meta_keywords => 'Sub Libidinous, Angsty', :meta_description => "Sub Quite the combination.")
+    end
+    
+    it 'renders title of parent page' do
+      content = render_template '{{ sub_page.parent.title }}', {'sub_page' => @sub_page}
+      content.should == "Home page"
+    end
+          
+  end
 
   context '#rendering page title' do