Is there any away to create STI child model objects from the STI base class?

Question

Given the following hierarchy

class Content < ActiveRecord::Base end
class Page < Content end
class Post < Content end

Is it possible to create for example, Page content (indirectly) using the following style:

c = Content.new c.type = Page c.title = 'test' c.save!

Looks like type is also a ruby method on the object.

Answer 1

Definitely, but you have to use write_attribute

c.write_attribute(:type, "Page")
c.save

Answer 2

I'd recommend doing something like this...

klass = "Page"
klass.constantize.create(:title=>'title')

If you just monkey around with the 'type' attribute, you won't have any methods you override in the subclass in your object.