class SimpleMongoid
  include Mongoid::Document
  include AASM

  field :status, :type => String

  aasm column: :status do
    state :unknown_scope, :another_unknown_scope
    state :new
  end
end

class SimpleMongoidMultiple
  include Mongoid::Document
  include AASM

  field :status, :type => String

  aasm :left, column: :status do
    state :unknown_scope, :another_unknown_scope
    state :new
  end
end