https://github.com/mnutt/acts_as_state_machine

acts_as_state_machine
https://github.com/mnutt/acts_as_state_machine

Last synced: about 2 months ago
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acts_as_state_machine

• Host: GitHub
• URL: https://github.com/mnutt/acts_as_state_machine
• Owner: mnutt
• License: mit
• Created: 2009-03-31T20:32:10.000Z (over 15 years ago)
• Default Branch: master
• Last Pushed: 2009-03-31T20:32:29.000Z (over 15 years ago)
• Last Synced: 2024-04-08T15:45:50.259Z (9 months ago)
• Language: Ruby
• Homepage:
• Size: 97.7 KB
• Stars: 5
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • Changelog: CHANGELOG
  • License: MIT-LICENSE

Awesome Lists containing this project

README

        
= Acts As State Machine

This act gives an Active Record model the ability to act as a finite state

machine (FSM).

Acquire via subversion at:

http://elitists.textdriven.com/svn/plugins/acts_as_state_machine/trunk

If prompted, use the user/pass anonymous/anonymous.

== Example

 class Order < ActiveRecord::Base

   acts_as_state_machine :initial => :opened

   state :opened

   state :closed, :enter => Proc.new {|o| Mailer.send_notice(o)}

   state :returned

   event :close do

     transitions :to => :closed, :from => :opened

   end

   event :return do

     transitions :to => :returned, :from => :closed

   end

 end

 o = Order.create

 o.close! # notice is sent by mailer

 o.return!

This version of State Machine will additionally create named scopes for your states - referring to the above example

Order.opened will return all orders with a state of opened

Order.closed will return all models with a state of closed

and so on 

For more information on named scopes see 

http://railscasts.com/episodes/108