Generates has-and-belongs-to-many migrations. Use rails generate habtm model1 model2

Make ActiveRecord defer/postpone saving the records you add to an habtm (has_and_belongs_to_many) association until you call model.save, allowing validation in the style of normal attributes.

Default values for ActiveRecord models

Put EAV behaviour on your ActiveRecord models

Extends ActiveRecord with the has_enumeration method allowing a symbolic enumeration to be stored in an ActiveRecord attribute. The enumeration is specified as a mapping between symbols and their underlying representation in the database. Predicates are provided for each symbol in the enumeration and the symbols may be used in finder methods. When using ActiveRecord 3, the symbols may also be used when interacting with the underlying Arel attribute for the enumeration. has_enumeration has been tested with Ruby 1.8.7, Ruby 1.9.2, JRuby 1.5.5, Rubinius 1.1.0, ActiveRecord 2.3.10, and ActiveRecord 3.0.3.

Implémentation graphique du jeu du Hashi en gtk3

Has_image is a Ruby on Rails gem/plugin that allows you to attach images to Active Record models.

Allow addition of custom 'magic' columns to ActiveRecord models.

Media Managment Library for ActiveRecord and Carrierwave

has_normalized_attributes is a Ruby on Rails gem that lets you normalize user data for an improved user experience. It takes the messy user inputed data and normalizes it into a nice clean standard format.

Uses Chronic to parse incoming dates and does not raise errors on invalid multi parameter settings

Easily track streaks on your ActiveRecord models.

Generates a unique slug for use as a drop-in replacement for ids.

The has_uuid gem adds a UUID to your AR models. See the README for details.

Webmention sending and receiving for Rails projects.

seed util (convert excel to yaml and insert yaml to db)

A messenger of gods, delivering them via RabbitMQ with a little help from Hutch

Trigger custom events with postgres

Append-only histories + chained snapshots of your ActiveRecord tables

A simple and solid concern to track ActiveRecord models attributes changes.