A thin wrapper to use Rails Migrations in non Rails projects

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.

ActiveRecord Reputation System gem allows rails apps to compute and publish reputation scores for active record models.

Make any Ruby object quack like ActiveRecord

Polymorphic threaded comments Rails gem for Rails 4+

Provide an easy way to check the consistency of the database constraints with the application validations.

ActiveRecord backend for DelayedJobUniqueKey, originally authored by Tobias Luetke

Devise Async provides an easy way to configure Devise to send its emails asynchronously using ActiveJob.

ActiveRecord backend for DelayedJob, originally authored by Tobias Luetke

Fixtures aren't fun. Machinist is.

Seed Fu is an attempt to once and for all solve the problem of inserting and maintaining seed data in a database. It uses a variety of techniques gathered from various places around the web and combines them to create what is hopefully the most robust seed data system around.

Faster inserts! Insert N records in a single statement.

Rails port of Heroku PG Extras. The goal of this project is to provide a powerful insights into PostgreSQL database for Ruby on Rails apps that are not using the default Heroku PostgreSQL plugin.

Apartment allows Rack applications to deal with database multitenancy through ActiveRecord

makes after_commit callbacks testable in Rails 3+ with transactional_fixtures

acts_as_follower is a Rubygem to allow any model to follow any other model. This is accomplished through a double polymorphic relationship on the Follow model. There is also built in support for blocking/un-blocking follow records. Main uses would be for Users to follow other Users or for Users t...

The EmailAddress Gem to work with and validate email addresses.

A SQLite based, lightning fast, super efficient and dead simple to setup and use database, cache and job queue for Ruby and Rails applications!

Allows simple search forms to be created against an AR3 model and its associations, has useful view helpers for sort links and multiparameter fields as well.

A simple database agnostic import/export app to transfer data to/from a remote database.