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

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

Add hook on activerecord records loaded

Using an ActiveRecord scope, recursively query trees.

Amazon Redshift _makeshift_ adapter for ActiveRecord.

This gem provides the Rails 3 with database adapter for AWS RedShift.

This gem provides the Rails 3 with database adapter for AWS RedShift.

Quickly make a cache column in ActiveRecord, non painful

Adds as reversible add_referential_integrity migration to Rails. Currently supports only PostgreSQL