alias_attribute

alias_attribute(new_name, old_name)

Instance Public methods

Allows you to make aliases for attributes, which includes getter, setter, and query methods.

class Content < ActiveRecord::Base
  # has a title attribute
end

class Email < Content
  alias_attribute :subject, :title
end

e = Email.find(1)
e.title    # => "Superstars"
e.subject  # => "Superstars"
e.subject? # => true
e.subject = "Megastars"
e.title    # => "Megastars"

Links:

https://github.com/rails/rails/blob/fa03e37d31d7c69c90d41f0764c374318d8dced0/activesupport/lib/active_support/core_ext/module/aliasing.rb#L62

doc_ruby_on_rails

2015-06-20 00:00:00

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