require 'rubygems'
require 'active_record'
ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :database => ":memory:")
ActiveRecord::Schema.define { create_table(:tasks) {} }

class Task < ActiveRecord::Base
  def type
    "Woot"
  end
end

class Woot < Task
end

Task.create
p Task.all
# => [#<Task id: 1>]
p Task.all.map(&:type)
# => ["Woot"]