You can use for STI, polymorphic and custom preload

ActiveRecordPrettyKey provides functionality to generate and manage pretty, human-readable keys for ActiveRecord models.

Use the propertybase_id as the primary key in all your rails models

Convenient removal of obsolete ActiveRecord models.

Publish events to Redis when your models change.

Proof of concept for proposed new Active Record query API

The DSL provides a nice and clean way to write ActiveRecord queries better than model scopes.

Display an overview of the quantity of queries being made and their origins in a block of code in Rails applications.

Detects N+1 queries in Rails applications and provides actionable suggestions to fix them

Query Stats logging for ActiveRecord

Makes rails go _faster_. Improve read times 4x!

Turns off Rails DB schema version.

Rack middleware managing ActiveRecord connections in standalone (non-Rails) applications

Provides connection management for Rack applications using ActiveRecord.

ActiveRecord Random is a Ruby Gem that empowers your ActiveRecord Models with the ability to return a random record without using SQL RAND().

ActiveRecord Reactors provide a defined way to react on default or custom Active Record callbacks. Observers without the magic, and without the hassle.

Control readonly for activerecord.

Makes an ActiveRecord model read-only

Add support for Postgresql Enum type in ActiveRecord

reconnect after checkout in order to DB failover