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This video was recorded on http://wrocloverb.com. You should follow us at https://twitter.com/wrocloverb. See you next year! "Fat models" cause maintenance issues in large apps. Only incrementally better than cluttering controllers with domain logic, they usually represent a failure to apply the Single Responsibility Principle (SRP). "Anything related to what a user does" is not a single responsibility. Early on, SRP is easier to apply. ActiveRecord classes handle persistence, associations and not much else. But bit-by-bit, they grow. Objects that are inherently responsible for persistence become the de facto owner of all business logic as well. And a year or two later you have a User class with over 500 lines of code, and hundreds of methods in it's public interface. Callback hell ensues. This talk will explore patterns to smoothly deal with increasing intrinsic complexity (read: features!) of your application. Transform fat models into a coordinated set of small, encapsulated objects working together in a veritable symphony.
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