Enable ActiveRecord models to be handled as BiTemporal Data Model.

Adds various #where_assoc_* methods to ActiveRecord to make it easy to do correct conditions on the associations of the model being queried.

Decreases the need to write integration tests by ensuring that the things you stub or mock actually exist.

Auto-create models, views, controllers, and routes with this slick Rails extension

Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses Upsert internally for speed.

Safe destroy for ActiveRecord.

Ruby workflow/orchestration engine

SQL input/output plugin for Fluentd event collector

Garner is a cache layer for Ruby and Rack applications, supporting model and instance binding and hierarchical invalidation.

Provides support for using versioning gems such as PaperTrail with Globalize.

Referencing code in app/ from a database migration risks breaking the migration when your app code changes; this gem prevents that mistake

Adds group and membership functionality to Rails models

Shield sensitive data in Postgres and MySQL

Likeable allows you to make your models...well...likeable using redis.

A faster, lower-memory, fuller-featured querying API for ActiveRecord that returns results as unadorned, read-only objects.

#set(), speed-up your specs

Add support for master/slave database database clusters in ActiveRecord to improve performance.

Search object DSL

Provides enhancements to ActiveRecord to handle spatial datatypes in PostgreSQL and MySQL.

A gem that provides a client interface for getstream.io