Easily set ActiveRecord attributes to auto-generate as unique values from a given proc.

before_create helper to create unique idenfication fields

Read more on GitHub.

A Rails adaptor that encapsulate measurements and their units in Ruby on Rails.

Validate that a column is a valid unit of measurement

A minimal endpoint for driving server-side validations from a remote UI

UniversalApi gives REST interface for accessing ActiveRecord models

Make your model uniq and identifiable through a readable name.

Moip Assinaturas integration with Unlock

paypal-recurrring integration with Unlock

The Locode gem gives you the ability to lookup UN/LOCODE codes.

Unreliable helps uncover bugs in Rails apps that rely on ambiguous database ordering. Installing it makes both your app and your test suite more robust.

Untied Consumer Synchronizer.

A ActiveRecord backend for Untied Consumer Sync.

This is a Rails plugin to see unused views in you controllers

Unveil provides a super simple way to specify which of a model's attributes are available to an API in a Ruby on Rails application.

Remove where conditions from your AR relations

A Ruby Gem for you to write update queries.

ActiveRecord#update, but only when needed.

Allow to use update_or_create when db:seed or sometime.