Translation Center is a multi lingual web engine for Rails 3 apps. It builds a translation center community with translators and admins from your system users.

uffizzi_core

Universal ID opens the flood gates with a deluge of profoundly powerful yet easily implemented new use-cases for your apps and scripts.

Easing the form object pattern in Rails applications.

Amazon Redshift _makeshift_ adapter for ActiveRecord 4.

Gem adds an "analyze" method to all Active Record query objects. Compatible with PostgreSQL database.

Associate a Ruby PORO with an Active Record class and have it quack like one.

Allows the use of CockroachDB as a backend for ActiveRecord and Rails apps.

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

acts_as_xlsx lets you turn any ActiveRecord::Base inheriting class into an excel spreadsheet. It can be added to any finder method or scope chain and can use localized column and sheet names with I18n.

A Rails library for storing user sessions in a backend database

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

Stores draft versions of your ActiveRecord models' data in a single table or split up into separate tables. Works with Ruby on Rails and Sinatra.

FastPage applies the MySQL "deferred join" optimization to your ActiveRecord offset/limit queries.

Fast fuzzy string matching for rails

Preload ActiveRecord associations with graphql-batch

The JitPreloader has the ability to send notifications when N+1 queries occur to help guage how problematic they are for your code base and a way to remove all of the commons explicitly or automatically

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

A phishing kit collector for scavengers

JRuby gem for performing multidimensional queries of relational database data using Mondrian OLAP Java library