Rails 3 - How to Create a JSON Object to store in the database

Question

I\'m creating an AuditLog observer that watches over several models.

I\'d like the observer to have an after_create, which creates a JSON object that is stored in a data

Answer 1

Current versions of rails support json serialisation out of the box. Define your field as a string (or text) in the migration and then:

class Foo < ActiveRecord::Base
  serialize :field, JSON
end

bar = Foo.new
bar.field = [1,2,3]
bar.save