Optimize queries of ActiveRecord preload functions.

Atomic updates to ActiveRecord models

Transparent conversion for ActiveRecord

Add simple attribute annotations to your active records

Batch up your ActiveRecord "touch" operations for better performance. All accumulated "touch" calls will be consolidated into as few database round trips as possible.

Several small active record modules to empower models in a simple way.

A gem that makes better dependent error messages telling exactly which relationship tree failed with which ID's.

Activerecord::BitField provide a feature of mapping bit fileds to RDB table in ActiveRecord.

a framework for xross transformer between ActiveRecord and other format.

Binary search extension for ActiveRecord.

This gem adds a caching layer to ActiveRecord models when finding them by a numeric primary key.

Allows ActiveRecord and Rails to use a `cached_at` column for the `cache_key` if available

This gem extends cashier with possibility to add AR objects and classes as keys and automaticaly hook with AR to clean up this keys on object change/deletion

This gem adds custom block expectation matchers for RSpec, such as `expect { ... }.to create_a_new(User)`

Instead of scattering validations, strong parameters, and business rules across controllers and models, changesets give you one clear interface for handling data before it touches the database.

Adds several different inheritance patterns for use with Rails models and ActiveRecord relations.

Provides a set of helper methods for dealing with chronological records that have common primary key and date columns denoting when the record is active (example: Oracle EBS tables).

A tool to help with cloning of active record objects.

A collection of useful coders for ActiveRecord, including a pipeline for chaining them.

Create collections of records, represented by ActiveRecord::Relation query criteria which can be serialized and passed around without executing queries or loading records.