OOP

Manging the state of objects and state specific behavior is always an interesting problem to deal with. The Rails community has done a great job of developing libraries to help manage this. Most of these libraries come in the form of State Machines. These typically have the pattern of defining states, events to change states, and constraints by which those states can or cannot change. Usually, this code is maintained in your model, and in some cases states can have their very own model and DB table and keep an audit history of some kind. ...