Skip default_scope in your associations

Add some nice ActiveModel/ActiveRecord validators.

Provides sortable_columns helper in active admin resource definitions.

ActiveAdmin chat plugin

Provides easy DSL integration between ActiveAdmin & state_machine

Gem that allows to attach dynamic attributes to ActiveRecord model

activejob-cancel provides cancel method to Active Job

Exposes a bulk insert API to AR subclasses

Colorized SQL Logging Backport for ActiveRecord. See http://git.io/vmlOb

Simple ActiveRecord diff functionality

ActiveRecordDistinctOn adds support for `DISTINCT ON` to ActiveRecord. At the time of this writing, PostgreSQL is the only database which supports this syntax; however, this gem has been written with database independence in mind so that if another Arel visitor adds support for `Arel::Nodes::DistinctOn` in the future, it should work seamlessly.

Provides transparent encryption for ActiveRecord. You can protect your data with any encryption algorithm you want.

An ActiveRecord extension providing convenience methods for timestamp management.

Save unnecessary round trips to the database

Active Storage previewer for Microsoft Office files based on LibreOffice

acts_as_account implements double entry accounting for Rails models. Your models get accounts and you can do consistent transactions between them. Since the documentation is sparse, see the transfer.feature for usage examples.

ActiveRecord extension that turns your models into graph objects. Includes helper methods for adding <meta> tags and the Like Button to your views.

Simple Shopping Cart implementation

ActsAsTextcaptcha provides spam protection for Rails models with text-based logic question captchas. Questions are fetched from Rob Tuley's textcaptcha.com They can be solved easily by humans but are tough for robots to crack.

An advertising manager mountable engine