Merge pull request #458 from rhec/store_metadata_on_create

store attribute metadata as it exists at creation

lib/paper_trail/has_paper_trail.rb

@@ -403,8 +403,9 @@ module PaperTrail
             if v.respond_to?(:call)
               v.call(self)
             elsif v.is_a?(Symbol) && respond_to?(v)
-              # if it is an attribute that is changing, be sure to grab the current version
-              if has_attribute?(v) && send("#{v}_changed?".to_sym)
+              # if it is an attribute that is changing in an existing object, 
+              # be sure to grab the current version
+              if has_attribute?(v) && send("#{v}_changed?".to_sym) && data[:event] != 'create'
                 send("#{v}_was".to_sym)
               else
                 send(v)

test/unit/model_test.rb

@@ -800,8 +800,8 @@ class HasPaperTrailModelTest < ActiveSupport::TestCase
         assert_equal @article.action_data_provider_method, @article.versions.last.action
       end
 
-      should 'store dynamic meta data based on an attribute of the item prior to creation' do
-        assert_equal nil, @article.versions.last.title
+      should 'store dynamic meta data based on an attribute of the item at creation' do
+        assert_equal @initial_title, @article.versions.last.title
       end