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= ConcernedWith, an ActiveRecord extension ConcernedWith allows you to split up a model's several concerns into separate files to keep your code clear and modularized. This version is a bit more sophisticated as it uses the include-mechanism instead of re-opening the model's class. It required a bit more setup but provides more flexibility on the other hand. Inspired by Rick Olson's original code. == Installation In your application root do: $ git submodule add git://github.com/jazen/concerned_with.git vendor/plugins/concerned_with == How to use # app/models/user.rb class User < ActiveRecord::Base concerned_with :authentication, :validations end # app/models/user/authentication.rb module User::Authentication def self.included(base) base.extend ClassMethods end module ClassMethods def authenticate(name, password) ... end end end # app/models/user/validations.rb module User::Validations def self.included(base) base.validates_presence_of :name, :email end end == Template code for your convenience module Model::Concern def self.included(base) base.extend ClassMethods base.send :include, InstanceMethods # You can use base.alias_method_chain and other cool things here! ... end module ClassMethods ... end module InstanceMethods ... end end Copyright (c) 2009 Stephan Schubert, released under the MIT license