method

alias_attribute

Ruby on Rails latest stable (v7.1.3.2) - 0 notes - Class: ActiveSupport::CoreExtensions::Module

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1 (0)
2.3.8 (0)
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
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5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
7.1.3.4
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

These similar methods exist in v7.1.3.2:

alias_attribute(new_name, old_name) public

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

Example:

  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"

Show source

# File activesupport/lib/active_support/core_ext/module/aliasing.rb, line 65
      def alias_attribute(new_name, old_name)
        module_eval "def \#{new_name}; self.\#{old_name}; end          # def subject; self.title; end\ndef \#{new_name}?; self.\#{old_name}?; end        # def subject?; self.title?; end\ndef \#{new_name}=(v); self.\#{old_name} = v; end  # def subject=(v); self.title = v; end\n", __FILE__, __LINE__ + 1
      end

alias_attribute

Related methods

Method deprecated or moved