Improves the class reflection of relationships

Adds :destroy_if option to accepts_nested_attributes_for, which is basically a stronger version of :reject_if that destroys existing records, too.

Monkey patch to index nested errors for ActiveRecord 4

Normalize your ActiveRecord models' attributes

Very simple implementation of tableless

An adapter for ActiveRecord and AREL to support the NuoDB distributed database backend.

Provides `ActiveRecord::Relation#one!`, a convenience method that asserts a relation contains exactly one record and returns it. If there are no records or more than one, an `ActiveRecord::NoRecordFound` or `ActiveRecord::MultipleRecordsFound` exception is raised, respectively.

A store is required by an OpenID server and optionally by the consumer to store associations, nonces, and auth key information across requests and processes. If rails is distributed across several machines, they must must all have access to the same OpenID store data, so the FilesystemStore won't...

This gem extends active record and it's migrations for oracle queue support.

Order your ActiveRecord scopes by a supplied list of ids

Allow chaining active record scopes with OR.

Signalize when some primary key overflow soon.

An ActiveRecord ConnectionPools class supports switching connection pool by database config instead of ActiveRecord model class name

This patch provides first_or_create method to be atomic, once the default one isn't!!!

activerecord with pattern match

A Rubygem that provides an easy way to build ActiveRecord models that represent PeopleSoft tables

A ruby gem that makes working with Postgres arrays in ActiveRecord easier

ActiveRecord connection adapter for safe PgBouncer use

This gem adds a feature which inserts records using PostgreSQL generate_series function to ActiveRecord. Insertion using generate_series function is very fast, so it is useful when you want to insert simple but many and many record, e.g. prepare for performance test.

Automatic reconnection for Postgres