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.

This 'acts_as' extension provides multi-table inheritance for rails models.

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

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

Compose, decouple and manage domain logic and data persistence separately. Works particularly great for composing form objects!

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.

Execute your ActiveRecord migrations with Percona's pt-online-schema-change. Formerly known as Percona Migrator.

Safe destroy for ActiveRecord.

Ruby workflow/orchestration engine

SQL input/output plugin for Fluentd event collector

Fast fuzzy string matching for rails

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

Adds typed hstore backed fields to an ActiveRecord model (FORK).

fork of hstore accessor that supports rails 5 .

Shield sensitive data in Postgres and MySQL

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