A.1. AttributeMethods

AttributeMethods adds the ability for your class to have custom prefixes and suffixes on your methods. It is used by adding the definitions for the prefixes and suffixes, defining which methods on the object will use them, then implementing the common behavior for when those methods are called. An example implementation is as follows:

class Record
  include ActiveModel::AttributeMethods

  attribute_method_prefix 'reset_'
  attribute_method_suffix '_highest?'
  define_attribute_methods [ 'score' ]
  attr_accessor :score

  private
  def reset_attribute(attribute)
    send("#{attribute}=", nil)
  end

  def attribute_highest?(attribute)
    attribute > 1000 ? true : false
  end
end