0.03
Repository is archived
No commit activity in last 3 years
No release in over 3 years
Mongoid::Sequence gives you the ability to specify fields to behave like a sequence number (exactly like the "id" column in conventional SQL flavors).
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Dependencies

Development

~> 0.9

Runtime

 Project Readme

Mongoid Sequence

Mongoid Sequence allows you to specify fields to behave like a sequence number (exactly like the "id" column in conventional SQL flavors).

Credits

This gem was inspired by a couple of gists by masatomo and ShogunPanda.

Usage

Include Mongoid::Sequence in your class and call sequence(:field).

Like this:

class Sequenced
	include Mongoid::Document
	include Mongoid::Sequence
	
	field :my_sequence, :type => Integer
	sequence :my_sequence
end

s1 = Sequenced.create
s1.sequence #=> 1

s2 = Sequenced.create
s2.sequence #=> 2 # and so on

It's also possible to make the id field behave like this:

class Sequenced
	include Mongoid::Document
	include Mongoid::Sequence
	
	sequence :_id
end

s1 = Sequenced.create
s1.id #=> 1

s2 = Sequenced.create
s2.id #=> 2 # and so on

Consistency

Mongoid::Sequence uses the atomic findAndModify command, so you shouldn't have to worry about the sequence's consistency.

Installation

Just add it to your projects' Gemfile:

gem "mongoid-sequence"

Copyright © 2010 Gonçalo Silva, released under the MIT license