Midnight Oil

I’ve been playing around with Engines a bit at work, and I ran into an issue where I had to restart the server over and over due to class caching issues.

To make a long story short, I was able to force Rails to reload the particular engine I was using by adding the following to the engine’s init.rb:


%w(controllers helpers models views).each {|path| Dependencies.load_once_paths.delete File.join(File.dirname(__FILE__), 'app', path) }
Dependencies.load_once_paths.delete File.join(File.dirname(__FILE__), 'lib')


This worked with Rails 2.1 and an unknown version of the Engines plugin.