module Sequel::Plugins::Subclasses

  1. lib/sequel/plugins/subclasses.rb
Parent: Plugins

The Subclasses plugin keeps track of all subclasses of the current model class. Direct subclasses are available via the subclasses method, and all descendent classes are available via the descendents method.

c = Class.new(Sequel::Model)
c.plugin :subclasses
sc1 = Class.new(c)
sc2 = Class.new(c)
ssc1 = Class.new(sc1)
c.subclasses    # [sc1, sc2]
sc1.subclasses  # [ssc1]
sc2.subclasses  # []
ssc1.subclasses # []
c.descendents   # [sc1, ssc1, sc2]

Methods

Public Class

  1. apply

Public Class methods

apply (model)

Initialize the subclasses instance variable for the model.

[show source] 
# File lib/sequel/plugins/subclasses.rb, line 20
def self.apply(model)
  model.instance_variable_set(:@subclasses, [])
end