Undo with Paper Trail in Rails 2.3.8

I was recently impressed by Ryan Bates recent Railscast on Undo with Paper Trail, but faced a few difficulties trying to port it into a Rails 2.3.8 project.

Rails 3+ has access to the view_context in the controller. It took me a while to find this because I’ve never needed it, but Rails 2.3.8 has similar access to the link_to helper via @template.

I also found that the undo action taken immediately after a create caused an Activerecord::RecordNotFound error, caused by a redirect_to the show action of the record that was just destroyed.

After fixing these issues I decided to fork Ryan’s source and provide a Rails 2.3.8 version. You can find this at https://github.com/MeetDom/railscasts-episodes/tree/rails238/episode-255. I hope someone else finds this useful.

Safari 5 →

Both Safari 5 and Rails 2.3.8 released this week. It’s like two Christmases at once! HTML5, Forms 2.0 and CSS3 here I come.

Safari 5 has some major new features:

• Reader (try it on Wikipedia), 
• greater HTML5 support, faster rendering, 
• additional search engine support (Bing and Yahoo!); and 
• a new extensions system supporting HTML/CSS/JS plugins (like FF has had forever).

I’ve installed Safari 5, and I’ve noticed a big difference in rendering on some sites - especially sites constructed using well formed HTML. Rendering of HTML5 seems blazingly fast - and has really given me the impetus to start using it wherever I can.