Adds enumerations to your models

Enum machine is a library for defining enums and setting state machines for attributes in ActiveRecord models and plain Ruby classes.

Allows ActiveRecord to better use PostgreSQL's ENUM types.

Elasticity provides a higher level abstraction on top of [elasticsearch-ruby](https://github.com/elasticsearch/elasticsearch-ruby) gem

Make your Ruby objects searchable with Elasticsearch.

Database based event counter with throttling per time intervals

Everett is a substitute for Active Record Observer on Rails 5.

Hash condition syntax for AR query everywhere!

A zero-configuration logging solution for projects using Sidekiq, Rails, Sequel, etc.

facetq - "stand-alone" facet (activerecord) models for easy (re)use for sql database queries and more

Facteur allows you add a messaging system in your Rails 3. You can create many mailboxes for your users. They will be able to send and receive messages.

A library for preloading test data in rails applications.

A gem that helps you generate your factory files.

FactoryGirl can now handle JSON representation for an object.

Fast ActiveRecord Serializer

Implements a simple system for handling xml news feeds with caching.

FindBug is a Sentry-like error tracking and performance monitoring gem that stores data locally using Redis and your database. Features include exception capture, performance instrumentation, alerting, and a built-in dashboard.

Extensions for Finder classes

A simple way to find records in the same order of input array. Has better performance than manually sorting. Supports Rails 3+.

ActiveRecord adapter for Fino settings engine