CanCan supported Allow Header for Rack responses

All of the goodness of ActiveModel (validations, callbacks, etc.) along with declarative typed accessors, JSON serialization, and more.

Lightweight utility to create simple JSON Apis

This gem allows you to call consistent responses, making it easier for you to create your API

Patches ActiveRecord to make models returned from custom queries respond much faster.

Resque plugin to fail over to ActiveRecord backend for Resque job storage, when Redis is unavailable.

add rake task for resque to await DB migration of activerecord

Enable send_later support for Resque. Includes support for mongoid backends. Based on the original resque-delay gem by Michael Ryko.

Resque queue backed by database audits, with automatic retry

ensure active record connections are valid before performing resque background jobs

Adds persistence to Resque jobs, and retry properties

Enable ActiveRecord query cache for Resque jobs

An Active Record model can be defined as 'queueable'. That adds extensions to add any method to the queue that exists on the method instance.

Ruby Apple Address Book Interface and Tools

Retrying once if raise a RecordNotUnique

Retries an operation on an ActiveRecord until no StaleObjectError is being raised.

A gem to handle deadlocks in ActiveRecord by retrying transactions and logging details.

Simple implementation of RETURNING for ActiveRecord

Simulates realistic Revel Systems POS operations against the sandbox API. Generates orders, payments, and transaction data across 4 business types.

Reversible Data provides migration-like functionality for tests etc - All with temporary models.