after_commit is an ActiveRecord gem to add an after_commit callback. This can be used to trigger things only after the entire transaction is complete.

A gem to follow, follow request and block between any ActiveRecord models.

Internal Affairs integration helper

Module to provide helper methods for interpreting American formatted date strings.

InterstateMachine is a simple state machine which use interactors to trigger transitions

Finds invalid ActiveRecord entries and reports them

A gem that lets you control the flow of products, and orders through invoices

Allows ActiveRecord to hide record data without deleting anything.

Allows ActiveRecord to hide record data without deleting anything.

A magic for life developer.

IP address - integer conversion and activerecord support for ip attribute as integer column

ipcauthpipe gem implements Courier's authpipe protocol to interface Courier POP/IMAP server with Invision Power Board / Converge members database.

A gem to integrate the IPligence database in ruby

This gem allows ActiveRecord models to generate, validate, and clear OTP codes with an expiration time.

When object factories don't work because your data is too complex and creating manual fixtures is cumbersome and brittle: Iron Fixture Extractor (for Rails/ActiveRecord)

Wires up ActiveRecord to use SQLServer through IronRuby.

Adds wiki functionality. Based on http://github.com/alno/irwi.

Transform database constraint errors into activerecord validation errors

Simple gem to reduce the spam attacks on sign-up, sign-in and other similar sorts of forms.

Isimud is an AMQP message publishing and consumption gem intended for Rails applications. You can use it to define message consumption queues for ActiveRecord instances, or synchronize model updates between processes. It also provides an event listener background process for managing queues that consume messages.