ArelToolkit contains parsing, querying, modifying, optimisations, extensions and more for Arel.

Add MySQL geometry type to Active Record.

ActiveRecord Object Instrumenter: Instrument the creation of ActiveRecord objects

ar_pg_array includes support of PostgreSQL's int[], float[], text[], timestamptz[] etc. into ActiveRecord. You could define migrations for array columns, query on array columns.

These RSpec matchers allow guarding against N+1 queries by specifying exactly how many queries you expect each of your ActiveRecord models to perform.

Add support for PostgreSQL's SEQUENCE on ActiveRecord migrations

Associate multiple models together and make them behave as one.

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Changes behavior of Active Record present?

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

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.

Automatic data change tracking for Ruby on Rails.

bio-ngs provides a framework for handling NGS data with BioRuby

bio-ngs provides a framework for handling NGS data with BioRuby

Automatically userstamps create and update operations if the table has created_by and/or updated_by columns

brtraducao é uma das gems que compoem o Brazilian Rails

Cabalist is conceived as a simple way of adding some smarts (machine learning capabilities) to your Ruby on Rails models without having to dig deep into mind-boggling AI algorithms. Using it is meant to be as straightforward as adding a few lines to your existing code and running a Rails generator or two.

Speed up ActiveRecord counting with caching

Automatically add calculated attributes to ActiveRecord models.

CanBe allows you to track the type of your ActiveRecord model in a consistent simple manner. With just a little configuration on your part, each type of record can contain different attributes that are specifc to that type of record.