Use marshal to serialize things, similar to ActiveRecord::Store

Memoize ActiveRecord objects and search there.

Useful to generate namespaced database models for a legacy database

Monocle helps you manage your DB views.

translation support for your models with an I18n active-record backend

A library which offers flexible, chained serializion for Active Record

Execute multithreaded code while still using transactional fixtures by synchronizing db access to a single connection

ar_mysql_flexmaster allows configuring N mysql servers in database.yml and auto-selects which is a master at runtime

a cli for tarot.

A little gem that lets you execute lower-level ActiveRecord queries and access the resulting rows like you would by calling `find_by_sql`

ar_orderable adds a consistent way to order results at database level using ActiveRecord. Supports ordering by multiple attributes and by associated model's attributes.

You can order AR records and skip callbacks

Authorization Gem for Ruby and Ruby on Rails projects

Use a Postgres array column to manage a model's roles

This is an ActiveRecord connection adapter for PostGIS. It is based on the stock PostgreSQL adapter, but provides built-in support for the spatial extensions provided by PostGIS. It uses the RGeo library to represent spatial data in Ruby.

ar-preloader lets you fetch the selected associations for a list of ActiveRecord objects.

This gem turns off schema introspection in favor of declaring properties in your models. Instead, you declare the properties in the model itself and ActiveRecord will only read and write the columns that you specify.

Like Ar::Store, but with Protocol Buffers

Explore database without Rails

Use ActiveRecord and Pry as your favorite SQL query editor.