Improves the class reflection of relationships

Adds scopes to your models to perform nearest neighbor queries with PostGIS and PostgreSQL. Also provides rake tasks for generating migrations to create geospatial tables or add geospatial columns and indexes to your existing tables.

Check if nested attributes were destroyed during the last save

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

An ActiveRecord extension to build nested scopes through pre-defined associations

Normalize your ActiveRecord models' attributes

Adds NOT logic to ActiveRecord

Very simple implementation of tableless

Add support for a not_nill type to active record.

Create Null Objects for ActiveRecord models with automatic support for empty associations.

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

ODBC Data Adapter for ActiveRecord

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...

A monkey patch for oracle-enhanced ISSUE #755.

Oracle enhanced adapter with schema config support for ActiveRecord (Using this gem, you can specify schema details in database.yml). This gem is a tweaked version of original activerecord-oracle_enhanced-adapter gem.

Order your ActiveRecord scopes by a supplied list of ids

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!!!