Thoughtbot: Design Patterns in the Wild: Null Object

url: http://robots.thoughtbot.com/post/12179019201/design-patterns-in-the-wild-null-object

Walks through a refactoring in FactoryGirl using the Null Object pattern to simplify logic.

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Creative Commons Attribution-Share Alike 3.0 New Zealand License
Thoughtbot: Design Patterns in the Wild: Null Object by Walter McGinnis is licensed under a Creative Commons Attribution-Share Alike 3.0 New Zealand License