MySQL Replicaition(master/slave) for ActiveRecord

For data records that only need to be partially updated, this provides versioning for dirty attributes

manage snapshot materialized views for ActiveRecord. multiple versions of each view are maintained, a live version, a working version and 1 or more history versions, all created and managed automatically

A safe way to accept user parameters and order against your ActiveRecord Models

Simple gem for Rails Active Record sorting

ActiveRecord driver for SQL Anywhere customized for in4systems

ActiveRecord JDBC driver for SQL Anywhere customized for in4systems

Provides custom ActiveRecord types to handle PostgreSQL-specific data types (inet, interval, arrays) when migrating to SQLite in Rails applications.

Fork of SQL Server 2005 and 2008 Adapter For ActiveRecord. Adds support for SQL Server 2000.

SQL Server 2005 and 2008 Adapter For ActiveRecord. Forked in order to disable unicode.

Union for ActiveRecord::Relation and SQL string queries. Fam.

ActiveRecordStash provides a helpful syntax, which faciliates active_model compliant attributes, which are stored within a single serialized attribute. Poor mans NoSQL with AR

lazy-ish, Enumerator based traversal of data within ActiveRecord

Stream ActiveRecord results

Publish events about changes to your ActiveRecord models to different targets, like HTTP endpoints, AWS SNS topics or Kinesis streams

ActiveRecord::StrictValidations adds validations to ActiveRecord models to make sure they do not trigger database errors.

Generates encrypt_string type that transparently encrypt and decrypt string value to ActiveRecord.

Make ActiveRecord 4's Enum store as strings instead of integers.

Suppressing RangeError during type casting

This gem enables the use of database specific table locks when saving or destroying your ActiveRecord objects. This ensures no race conditions exist when using e.g. validates_uniqueness_of.