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Decoration is best, except when it isn’t

I think by now we all know to prefer composition over inheritance. But in a language with a lot of options, what’s the best kind of composition to use? Composing an adventure Consider an adventure game, with objects representing player characters. class Character # … end A Character can be described: class Character # … […]

End your OOP Confusion with the Design Pattern Classifier

The Ruby community has seen a renaissance of interest in classic Object-Oriented thinking lately. We’re talking about Presenters, and DCI, and Data Objects. But with these new discussions come new problems. Namely: the dreaded pattern terminology debate. He says it’s a Decorator. She says it’s an Adapter. Who is right? Well fret no more, because I have […]

Object Oriented Programming Books

A few people have asked for recommendations of good foundational Object Oriented Programming texts. The truth is I’m kind of behind on my formal OOP reading, and some of the early texts I read I wouldn’t recommend. My first proper OOP book was Object-Oriented Analysis and Design with Applications by Booch, and while it’s not a bad book, I remember […]

Early access beta of “Objects on Rails” Now Available

UPDATE: Objects on Rails is now complete and freely available online. Often, at conferences and users group meetings, I find myself discussing the intersection of Ruby on Rails, Object-Oriented development, and Test-Driven Development, and I’ll mention something like “I prefer to develop my business objects first, and add ActiveRecord in later”. This usually leads to questions about how I structure […]

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Virtuous Code

"The three virtues of a programmer: laziness, impatience, and hubris" — Larry Wall

Books and Screencasts

RubyTapas Screencasts

RubyTapas Screencasts

Small plates of gourmet Ruby code.

Confident Ruby

Confident Ruby cover

32 Patterns for joyful coding.

The Making of Cowsays.com

Confident Ruby cover

Watch me build an app in Sinatra and Rails

Objects on Rails

Objects on Rails

A developer notebook on applying classic Object-Oriented principles to Ruby on Rails projects.

Exceptional Ruby

Exceptional Ruby

The definitive guide to exceptions and failure handling in Ruby.

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