A smart sms verification tool

Backported from Rails 5.0 to use with 4.x versions

Simulate multi-table inheritance for activerecord models using a polymorphic association

Recursively traverse trees using a single SQL query

ActiveRecord Stand-alone migrations

Awesome patches backported for ActiveRecord MySQL adapters

MySQL index hint support for ActiveRecord

This gem enables your model to query the database using the earthdistance extension. This should be much faster than using trigonometry functions over standart indexs.

Rescue from MySQL and Sqlite duplicate errors

Rails ActiveRecord connector for Google Spanner Database

Directed Acyclic Graph hierarchy for Rail's ActiveRecord, supporting Rails 4.x

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.

Oauth and OpenID made dead simple, added custom token settings for Facebook

Extension for ActiveRecord that adds support for PostgreSQL array columns, mapping string values to integers.

Restrict the values assignable to ActiveRecord attributes or associations

Oauth and OpenID made dead simple

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

Cucumber Factory allows you to create ActiveRecord models from your Cucumber features without writing step definitions for each model.

Delayed is a multi-threaded, SQL-driven ActiveJob backend used at Betterment to process millions of background jobs per day. It supports postgres, mysql, and sqlite, and is designed to be Reliable (with co-transactional job enqueues and guaranteed, at-least-once execution), Scalable (with an optimized pickup query and concurrent job execution), Resilient (with built-in retry mechanisms, exponential backoff, and failed job preservation), and Maintainable (with robust instrumentation, continuous monitoring, and priority-based alerting).