*Atomic archiving/unarchiving for ActiveRecord-based apps* We had the problem that acts_as_paranoid and similar plugins/gems always work on a record by record basis and made it very difficult to restore records atomically (or archive them, for that matter). Because the archive and unarchive methods are in transactions, and every archival record involved gets the same archive number upon archiving, you can easily restore or remove an entire set of records without having to worry about partial deletion or restoration. Additionally, other plugins generally screw with how destroy/delete work. We don't because we actually want to be able to destroy records.

Manage custom fields to a mongoid document or a collection. This module is one of the core features we implemented in our custom cms named Locomotive.

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.

A user-centric flagging extension for Rails 3 applications.

pg-eyeballs is a ruby gem that gives you detailed information about how the SQL queries created by the active record code you write are executed by the database. It gives you an easy, ruby friendly way to see the output of the Postgres EXPLAIN command and integrates with the popular query analysis tool gocmdpev

Adds missing native PostgreSQL data types to ActiveRecord and convenient querying extensions for ActiveRecord and Arel

A lightweight cron scheduler for the Que async job worker

Record Cache for Rails 3

A smart sms verification tool

Additional Payment Gateways for Solidus

Track what product being viewed, what being purchased. Who are consistant buyers etc.

UI interface for rails-settings-cached in active admin

Recursively traverse trees using a single SQL query

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

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

Adds the validates_uniqueness_without_deleted validator to ignore deleted fields when validating for uniqueness.

Web interface to manage i18n translations for your apps to facilitate the editors of your translations. Provides a low-tech and complete workflow for importing, translating, and exporting your I18n translation files. Design to allows you to keep the translation files inside your projects git repository where they should be.

A Rails engine that adds a piece of middleware to the top of your middleware stack that looks for redirect rules stored in your database and redirects you accordingly.

Allows multiple types of relationships between products to be defined

Add support to complex resources of PostgreSQL, like data types, array associations, and auxiliary statements (CTE)