DRYing associations and behavior

October 31st, 2007 • Uncategorized

module CommonBehaviour
  def self.included(base)
    base.class_eval <<-EOC
      belongs_to :foo
      has_many :bars
      delegate :baz, :to => :survey_execution
    EOC
    base.send :include, InstanceMethods
  end

  module InstanceMethods
    def bla
      p 'bla'
    end
  end
end

class OneOfCommon < ActiveRecord::Base
  include CommonBehaviour
end

Tags: playground, rails, rails models

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