Apartment allows Rack applications to deal with database multitenancy through ActiveRecord

A Rails grid plugin to create grids with sorting, pagination, and filters generated automatically based on column types. The contents of the cell are up for the developer, just like one does when rendering a collection via a simple table. WiceGrid automates implementation of filters, ordering, paginations, CSV export, and so on. Ruby blocks provide an elegant means for this.

Redis for Ruby on Rails

A gem that removes duplicates when multiple copies of a que job are enqueued.

Implements Law of Demeter by mapping associated record attributes as own attributes (one-way read-only). Consequently, speeds up SQL queries by removing joins queries between intermediary models, at the cost of slower writes. This is an anti-normalization pattern in favour of actual data-redundancy and faster queries. Use this only as necessary.

Rabl generators for Rails resources

rack-metrics is a performance monitoring tool.

Rack middleware to generate pages that can be served by a web server. Compatible with Rails page caching.

Validate rack responses against schema named in the Link header

Client Side Validations for Rails 4

A comprehensive AI toolkit for Rails with multi-provider support, context awareness, and performance optimizations

Many apps need to send basic notifications to users, often using multiple delivery methods (like email, push notifications, SMS, twitter, etc). This gem is designed to make that process easy and track the state of the notification in a centralized fashion.

Get the version of your Rails app

Browser compatibility definition

"development" is not always the best name for the local environment. An alternate environment name, like "localdev", will prevent confusion, when "dev", or "develop", is used as a deployed environment.

A simple and powerful feature flagging system for Ruby on Rails applications. RailsFlags provides an easy way to manage feature flags with support for multiple storage backends.

Starting in v5.0, Rails removed the `force_reload` option from ActiveRecord association readers. This gem adds that functionality back in.

A gem to help you retrofit UUIDs to your existing Rails application.

rails_jskit provides jskit.js to the asset pipeline and allows seamless event dispatching from your rails application to jskit.

This gem provides an extraction of the DeprecatedMapper from Rails 3.0. If you have a legacy application with an old style routes.rb file this allows you to get your application running quickly in Rails 3.1.