attribute_method_affix(*affixes) public

Declares a method available for all attributes with the given prefix and suffix. Uses method_missing and respond_to? to rewrite the method. 

  #{prefix}#{attr}#{suffix}(*args, &block)

to 

  #{prefix}attribute#{suffix}(#{attr}, *args, &block)

An #{prefix}attribute#{suffix} instance method must exist and accept at least the attr argument.

For example: 

  class Person

    include ActiveModel::AttributeMethods
    attr_accessor :name
    attribute_method_affix :prefix => 'reset_', :suffix => '_to_default!'
    define_attribute_methods [:name]

    private

    def reset_attribute_to_default!(attr)
      ...
    end
  end

  person = Person.new
  person.name                         # => 'Gem'
  person.reset_name_to_default!
  person.name                         # => 'Gemma'
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