Many of the features that people add to systems are little tweaks. They require the addition of a little code and maybe a few more methods. It’s tempting to just make these changes to an existing class. Chances are, the code that you need to add must use data from some existing class, and the easiest thing is to just add code to it. Unfortunately, this easy way of making changes can lead to some serious trouble. When we keep adding code to existing classes, we end up with long methods and large classes. Our software turns into a swamp, and it takes more time to understand how to add new
...more
In Rails see the Mammoth Model or the Triple Thick Controller
