Is there an easy way to make a Rails ActiveRecord model read-only?

Question

I want to be able to create a record in the DB but then prevent Rails from making changes from that point on. I understand changes will still be possible at the DB level.

Answer 1

This blog post is still valid: http://ariejan.net/2008/08/17/activerecord-read-only-models/

Basically you can rely on ActiveRecord's validation if you add a method:

def readonly?
  true
end