Merge 2 ActiveRecords, preserving associations and attributes

Fast access to database results without the memory overhead of ActiveRecord objects

Easing the query object pattern in Rails applications.

ActiveRecord data synchronized with frontend DataStore

Override migration methods to support UUID columns without having to be explicit about it.

Add sorting scopes `asc` and `desc` to your ActiveRecord models.

Athar records database deletions to a separate audit table using PostgreSQL triggers, instead of soft-deleting rows in their original tables.

An ActiveRecord extension for writing commonly useful atomic SQL statements to avoid race condition.

Changes behavior of Active Record present?

Store a few extra (non-searchable) attributes away in a bucket. This is probably a horrible idea, but try it anyway.

A simple and non-intrusive way to mark deprecated columns/attributes in your models. Any usage of these attributes will logged with a warning message and a trace of where the deprecated attribute was called. An exception can be optionally raised as well.

A pgcrypto based Encryptor implementation for attr_encrypted

Auditor allows you to declaratively specify what CRUD operations should be audited and save the audit data to the database.

AuditTracker helps you centralize data tracking configuration to be used across different models

Automatic Foreign Key automatically generates foreign-key constraints when creating tables or adding columns. It uses SQL-92 syntax and as such should be compatible with most databases that support foreign-key constraints.

This gem uses PostgreSQLs hstore datatype and ActiveRecord models to translate model data. It is based on the gem hstore_translate by Rob Worely.

Backfiller for null database columns

This engine allows users to inject requests into a queue to be processed. The queue handles bank account validations, credit payments, debit orders and collecting bank statements/notify me statements.

A highly available, reliable messaging infrastructure

Allows hstore columns to store belongs_to association foreign keys with the same functionality as the default belongs_to