AASM - Ruby state machines

This package contains AASM, a library for adding finite state machines to Ruby classes.

AASM started as the acts_as_state_machine plugin but has evolved into a more generic library that no longer targets only ActiveRecord models.

AASM has the following features:

• Feature
• Feature

Download

The latest AASM can currently be pulled from the git repository on github.

• github.com/rubyist/aasm/tree/master

A release and a gem are forthcoming.

Installation

Until the gem release is made your best bet is to build the gem yourself and install it.

  % rake gem
  % sudo gem install pkg/aasm-3.0.0.gem

Simple Example

Here‘s a quick example highlighting some of the features.

  class Conversation
    include AASM

    aasm_initial_state :new

    aasm_state :new
    aasm_state :read
    aasm_state :closed

    aasm_event :view do
      transitions :to => :read, :from => [:new]
    end

    aasm_event :close do
      transitions :to => :closed, :from => [:read, :new]
    end
  end

Other Stuff

Author:	Scott Barron <scott at elitists dot net>
License:	Copyright 2006, 2007, 2008 by Scott Barron. Released under an MIT-style license. See the LICENSE file included in the distribution.

Warranty

This software is provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties of merchantibility and fitness for a particular purpose.