Class inherits from

mark — Sun, 03 Aug 2008 06:41:00 +0000

I wanted to know if a class was an Active Record class. I couldn’t find an easy way to do it in Ruby so I monkey patches the Class object like so (assuming Person is an active record model object).

class Class
  def inherits_from?(klass, me=self)
    return false if me.nil?
    return true if me == klass
    inherits_from? klass, me.superclass
  end
end

>> Person.inherits_from? ActiveRecord::Base
=> true

State Of Flux » inheritance

Class inherits from