Note: This website has been deprecated and is no longer maintained. The open/closed principle (OCP) is a fundamental "run of thumb" in object-oriented languages. It has hands in proper inheritance, polymorphism, and encapsulation amongst other core properties of object-oriented programming. The open/closed principle says that we should refine classes to the point at which we eliminate churn. In ot
Note: This website has been deprecated and is no longer maintained. Many articles found in the Ruby community largely oversimplify the use of DCI. These articles, including my own, highlight how DCI injects Roles into objects at runtime, the essence of the DCI architecture. Many posts regard DCI in the following way: class User; end # Data module Runner # Role def run ... end end user = User.new #
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