'State' Design Pattern from the Gang of Four book. Many other state machines focus on events and transitions. This state machine focuses on behavior and reducing conditional logic.

state_shifter is a gem that adds state machine behavior to a class

Create a database trigger that keeps the most recent Statesman state in sync.

Manage JSON object in string typed attributes for ActiveRecord models

Static authentication && authorization in rails.

Basic functionality for models to get initialised with static data and make them accessible with common finder methods

Replace your key/value classes with this. Define classes with several 'singleton' instances.

Index your Rails app's static content and search it easily

A performant and flexible counter solution that allows to make statistics on your models

Contains all of the models used by statusbot. Makes it easy for smaller pieces to use the same models.

State machine used internally at Faraday.

Rails compatible gem that provides full DB connection and models to SteemSQL.com

Steward is a standalone web service for communicating to cloud services

Fall back to base model on missing STI subclasses in ActiveRecord

Изменение класса у STI модели

attach comments to your ActiveRecord queries

STIpend is a quick way to allow assignment and modification of Single Table Inheritance in Rails.

Stockor Core contains the ActiveRecord models and business logic for the Stockor ERP system

A programmatic approach to performing various financial analysis

The acl from StoneWall, now as a shiny new gem!