Rails 4.2
Rails 4.2
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ActiveModel::Model

module ActiveModel::Model

Included modules:
ActiveModel::Validations, ActiveModel::Conversion

Active Model Basic Model

Includes the required interface for an object to interact with ActionPack, using different ActiveModel modules. It includes model name introspections, conversions, translations and validations. Besides that, it allows you to initialize the object with a hash of attributes, pretty much like ActiveRecord does.

A minimal implementation could be:

class Person
  include ActiveModel::Model
  attr_accessor :name, :a