Active Model Attribute Methods

Provides a way to add prefixes and suffixes to your methods as well as handling the creation of ActiveRecord::Base - like class methods such as table_name.

The requirements to implement +ActiveModel::AttributeMethods+ are to:

• include ActiveModel::AttributeMethods in your class.

• Call each of its methods you want to add, such as attribute_method_suffix or attribute_method_prefix.

• Call define_attribute_methods after the other methods are called.

• Define the various generic _attribute methods that you have declared.

• Define an attributes method which returns a hash with each attribute name in your model as hash key and the attribute value as hash value. Hash keys must be strings.

A minimal implementation could be:

class Person include ActiveModel::AttributeMethods attribute_method_affix prefix: 'reset_', suffix: '_to_default!' attribute_method_suffix '_contrived?' attribute_method_prefix 'clear_' define_attribute_methods :name attr_accessor :name def attributes { 'name' => @name } end private def attribute_contrived?(attr) true end def clear_attribute(attr) send("#{attr}=", nil) end def reset_attribute_to_default!(attr) send("#{attr}=", 'Default Name') end end