Better support for legacy database schemas for ActiveRecord, such as columns named class, or any other name that conflicts with an instance method of ActiveRecord.

Provides an internal extension API to ActiveRecord, in the form of middleware-style callback stacks

A smart sms verification tool

State machine that allows dynamic transitions for business workflows

Sharding

Functions from timescaledb available in the ActiveRecord models.

Rails way to harness the power of SQL "EXISTS" statement

Subscribe to changes on ActiveRecord models

ActiveRecord/Rails Integration for the Workflow library. Workflow is a finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'.

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.