on validation error for a news reorganization rollback transaction

The rollback is needed as the new_version is created only on successful save.

Without rollback, the news content is updated without new version created.

Author: Trim

app/models/news.rb

@@ -264,7 +264,8 @@ def reorganize(params)
       Paragraph.where(news_id: self.id).delete_all
       self.attributes = params
       create_parts
-      save
+      # Let commit transaction only if save is successful so version will be well created
+      raise ActiveRecord::Rollback unless save
     end
     unlock
   end