Evaluating Alternative Decorator Implementations In Ruby
Recently, decorators have become a big part of my Ruby on Rails life. We used them heavily in a recent client project, Harold Giménez wrote a great post about them, Avdi Grimm is writing about them in Objects on Rails, and Jeff Casimir has a great presentation about them. Until recently, I still had some questions, however, such as: Should I roll my own decorators? If I roll my own, what are the t
Tidy Views and Beyond with Decorators
The problem Here’s a view serving monkeys#show. What’s wrong with it? <% if @monkey.eating? %> <div class="eating"> <%= @monkey.name -%> is eating. Nom nom </div> <% elsif @monkey.sleeping? %> <div class="sleeping"> <%= @monkey.name %> cannot be bothered right now </div> <% end %> <div id="banana-status"> <% if @monkey.bananas.any? %> <div class="banana-count"> The monkey has had <%= @monkey.banan
Decorator Pattern with Ruby in 8 lines | the blog of luke redpath
Decorator Pattern with Ruby in 8 lines The Decorator Pattern is a design pattern that enables you to dynamically wrap behaviour around an existing object at runtime. It is especially useful when an object can have many variables that can be combined in different ways, which in turn affect it’s behaviour. This small, simple implementation of the decorator pattern in Ruby sums up what I love about t
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