module Libis::Workflow::Mongoid::Sequence

Include this module to add automatic sequence feature (also works for _id field, so SQL-Like autoincrement primary key can easily be simulated) usage: class KlassName

include Mongoid::Document
include LIBIS::Mongoid::Sequence

field :number, :type=>Integer
sequence :number

… Note: only tested on Mongoid 3.x and 4.x