Simple tagging gem for Rails using postgres array.

Plugin for running methods on ActiveRecord models after record is committed

With Amountable, you can easily attach, organize and sum Ruby money fields to your models without migrating.

Multidb is an ActiveRecord extension for switching between multiple database connections, such as primary/replica setups.

Oauth and OpenID made dead simple

Brainstem allows you to create rich API presenters that know how to filter, sort, and include associations.

This rubygem does not have a description or summary.

Give your models as-of date temporal extensions. Built entirely for PostgreSQL >= 9.4

Provides automatic deadlock retry and logging functionality for ActiveRecord and MySQL

Fast batch deletes for Active Record and Postgres

Easy role authorization in rails

Preload factories (Factory Bot) just like fixtures. It will be easier and, probably, faster!

Ferry is a data migration and visualization command line tool rubygem that seeks to simplify the increasingly prevalent big data problems for developers

hydra_attribute is an implementation of EAV pattern for ActiveRecord models.

Rails I18n library for ActiveRecord model/data translation using PostgreSQL's JSONB datatype. Translations are stored directly in the model table rather than shadow tables.

Organizes ActiveRecord models into a tree/hierarchy using a materialized path implementation based around PostgreSQL's ltree datatype. ltree's operators ensure that queries are fast and easily understood.

A user-centric flagging extension for Rails 3 applications.

Ruby gem that automatically adds a lock timeout to all Active Record migrations

Loader to solve N+1 issue for good.

Extend Ruby on Rails ActiveRecord with Neo4j nodes. Keep RDBMS and utilize the power of Neo4j queries. Originally by @elado.