Ruby Design Patterns

Ruby Design Patterns. You do this by passing in a class that implements this algorithm, instead of hardcoding it into the class. Each lesson will provide an overview of a problem, and then propose a solution, using a particular design pattern.

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The first two patterns that will be covered are the Observer Pattern and the. So, Ruby On Rails follows some design patterns to achieve the DRY principle. Lets you produce families of related objects without specifying their concrete classes.

By definition, the Strategy Pattern defines a family of an algorithm and encapsulate each of them in you own class, that way it will enable that the strategy.

Design patterns can be powerful conceptual models for thinking about how to solve problems in software development.

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In this issue and the next one, I look at several design patterns laid out by the Gang of Four and explore their relevance to modern day Ruby programming. Examples from the book Design Patterns in Ruby by Russ Olsen. So, Ruby On Rails follows some design patterns to achieve the DRY principle.