consistent updated display

app/models/merged/page.rb

@@ -19,16 +19,8 @@ module Merged
       Section.where(page_id: id).order(index: :asc)
     end
 
-    def section_update
-      last = Time.now
-      last_section = nil
-      sections.each do |section|
-        if( section.updated_at < last )
-          last = section.updated_at
-          last_section = section
-        end
-      end
-      last_section
+    def sections_update
+      last_update_for( sections )
     end
 
     def template_style

app/models/merged/section.rb

@@ -15,6 +15,10 @@ module Merged
       Card.where(section_id: id).order(index: :asc)
     end
 
+    def cards_update
+      last_update_for( cards )
+    end
+
     def template_style
       SectionStyle.find_by_template( template )
     end

app/models/merged/view_base.rb

@@ -12,6 +12,18 @@ module Merged
 
     fields :options , :updated_at , :updated_by
 
+    def last_update_for(elements)
+      last = Time.now
+      last_section = nil
+      elements.each do |section|
+        if( section.updated_at < last )
+          last = section.updated_at
+          last_section = section
+        end
+      end
+      last_section
+    end
+
     def edit_save( editor )
       self.updated_at = Time.now
       self.updated_by = editor