Katello adds Content and Subscription Management to Foreman. For this it relies on Candlepin and Pulp.

Profile RSpec test suites

A minimalist's tiny and ultra-fast database cleaner for Active Record

PostgreSQL JSONB-based model changes tracking

PropertyWebBuilder lets you build great real estate websites fast.

Extends ActiveRecord#explain with support for EXPLAIN ANALYZE and output formats of JSON, XML, and YAML.

Textacular exposes full text search capabilities from PostgreSQL, extending ActiveRecord with scopes making search easy and fun!

Identify database issues before they hit production.

ActiveRecord and Mongoid extension for easier date scopes and time ranges

Adds typed jsonb backed fields to your ActiveRecord models.

The automatic indexer for Postgres

This gem creates a scope for unread objects and adds methods to mark objects as read

Plugin for the PaperTrail gem to track and reify associations

Make it easy to upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates merge functions for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

Adds extended functionality to Activerecord Postgres implementation

Pliny is a set of base classes and helpers to help developers write excellent APIs in Sinatra

A simple cms and blogging engine for rails apps.

ActiveRecord/Rails integration for multi-tenant databases, in particular the Citus extension for PostgreSQL

Postgres partitioning as easy as pie

Add binary (not string) UUIDs to ActiveRecord in MySQL