Podcast: Play in new window | Download According to The Pragmatic Programmer by Andy Hunt and Dave Thomas, “Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.” Last week I talked about extending your Ruby on Rails application. This is because in many cases in order to avoid repeating your logic across multiple classes (models or... 

Podcast: Play in new window | Download I’m going to be talking about the DRY principle next week. However, before I jump into that, I need to discuss how to extend Ruby on Rails so you know where you can put functionality to keep your application DRY. There are a couple of standard places people put code that isn’t a Model, View, Controller, or Helper: The ‘lib’ folder – This is...