This gem adds comments to the SQL to indicate where the SQL parts are constructed.

Gives a hook on MySQL warnings that allow you to either raise or log them.

PostgreSQL PGCrypto support for ActiveRecord models.

Active Record support for PostgreSQL JSON type

citext support for rails

A whole bunch of extensions the ActiveRecord PostgreSQL adapter.

Count total number of ActiveRecord queries and row counts inside a block

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

This gem changes ActiveRecord's query logs to be compatible with the sqlcommenter format.

Create ActiveRecord relations from UNIONs

Touch `updated_at` by default with calls to `update_column(s)` and `update_all`

Define attributes in arel

An implementation of repository pattern that can connect with any ORM

Sample functionality for Active Record.

Use your DB as a cache store

Generic approval queues for record creation, updates and deletion

ActiveRecord extension for sorted adjacency lists support

This is a ruby gem that provides drop in replacement for acts_as_tree but makes use of SQL recursive statement. Be sure to have a DBMS that supports recursive queries when using this gem (e.g. PostgreSQL or SQLite).

ActiveRecord extension that provides revision support so that history can be tracked and changes can be reverted. Emphasis for this plugin versus similar ones is including associations, saving on storage, and extensibility of the model.

This act gives an Active Record model the ability to act as a finite state machine (FSM).