I’m currently working on the software (called CCCash) which will be used to sell the tickets at the Chaos Comunication Camp 2007. During the development process we had a strange bug which we couldn’t really figure out. Pandur, who is also working on the software and who is more experienced than me in terms of RoR used breakpoints to figure this one out. I haven’t read the Pragmatic book this far so I didn’t know that this was even possible. It worked just as you would expect it. See the Ruby on Rails wiki for more informations. The more I dig into Ruby on Rails, the more I like it.