Get a list/array of child classes from Single Table Inheritance in Rails?

Question

I have a whole bunch of child classes that inherit from a parent class via single-table-inheritance in my Rails app. I\'d like a way to get an array of all the child classes tha

Answer 1

In your config/environments/development.rb

Rails.application.configure do
  config.eager_load = false
end

U can change false to true, and then in your console to do

Class.subclasses

or

Class. descendants

here is the difference between subclasses and descendants

subclasses:

class Foo; end
class Bar < Foo; end
class Baz < Bar; end

Foo.subclasses # => [Bar]

descendants:

class C; end
C.descendants # => []

class B < C; end
C.descendants # => [B]

class A < B; end
C.descendants # => [B, A]

class D < C; end
C.descendants # => [B, A, D]