Version refactored

app/models/concerns/version_session.rb

@@ -0,0 +1,12 @@
+module VersionSession
+  extend ActiveSupport::Concern
+
+  included do
+    before_save :add_session
+
+    def add_session
+      self.session = PaperSession.session
+      true
+    end
+  end
+end

app/models/concerns/versions.rb

@@ -5,6 +5,7 @@ module Versions
   included do
     has_paper_trail class_name: "#{model_name}Version"
 
+    # add creator and updator
     before_create :add_creator
     before_create :add_updator
     before_update :add_updator
@@ -18,5 +19,14 @@ module Versions
       self.updator_str = ::PaperTrail.whodunnit
       true
     end
+
+    # callbacks
+    def touch_domain_version
+      domain.try(:touch_with_version)
+    end
+
+    def touch_domains_version
+      domains.each(&:touch_with_version)
+    end
   end
 end