Strict Single Table Inheritence?s

rubyonrails-talk
1

Is there a way to set the base class to abstract? or otherwise enforce that no one can create a "Pet"?

Pet < ActiveRecord Dog < Pet Pig < Pet

I've tried:

class Pet < ActiveRecord::Base validates_presence_of :type end

but I get an error about ../vendor/rails/activerecord/lib/active_record/validations.rb:74: warning: Object#type is deprecated; use Object#class