Make your Mongoid model acts as a list. This acts_as extension provides the capabilities for sorting and reordering a number of objects in a list. The instances that take part in the list should have a +position+ field of type Integer.

Make your ActiveNode acts as a list. This acts_as extension provides the capabilities for sorting and reordering a number of objects in a list. The instances that take part in the list should have a +position+ field of type Integer.

Simple Role System for Rails Apps

Admin Web UI to manage permissions - Who can do What on Which objects

Raw github-like messaging system to reuse across Rails apps. Acts as Rails 3.1 mountable engine. Fast and robust.

Configures relationships between subject, join and object model for a given behavior