Defers saving of nested associations by ID, and adds dirty tracking of said associations to parent model

A tiny hack for Rails to make Model#as_json(include: :association) return a hash with association keys suffixed with _attributes.

Dynamic attr_accessible for Active Record, inspired by Ryan Bates Railscasts episode 237

Accessitude

Use the policy pattern to define access control mechanisms in Rails. Store user-level, group-level, or org-level permission on any given record or concept in the database with ultra-fast lookups.

Access token for client-side and API authentication.

Account Scopper: Automatically scope your ActiveRecord's model by account. Ideal for multi-account applications.

Provides enhancements to ActiveRecord to handle spatial datatypes in PostgreSQL and MySQL.

An adapter for Rails::ActiveRecord ORM to the KirbyBase pure-ruby DBMS

a-blog cms をrubyで操作したい

A DSL for seed.rb

Friendly cache with ActiveRecord.

Active Record plugin which allows you to disable and enable the record by adding act_as_disabled in model

Helps import records from CSV files.

Add full name methods on a model

Library (Docsplit wrapper) for text extraction from pdf, doc/x, txt files with OpenOffice

Make your models work with a release candidate that must be approved

Add time_as_boolean feature to ActiveRecord classes

Simple implementation of command pattern focused on reuse in multiple contexts

ActionController is great, but could be better. Here are some tweaks for it.