Adds various #where_assoc_* methods to ActiveRecord to make it easy to do correct conditions on the associations of the model being queried.

ActsAsBookable is a reservation engine for Rails applications that allows resources to be booked. You can define availability rules for bookable models and set costraints to implement different types of booking (hotels, theaters, meeting rooms...)

Make user messageable!;-)

Add support to search through (potentially large) belongs_to associations in your Administrate dashboards.

Enable librarians, curators, and others who are responsible for digital collections to create attractive, feature-rich websites that feature these collections.

Bootstrap Forms makes Twitter's Bootstrap on Rails easy to use by creating helpful form builders that minimize markup in your views.

A utility that adds class based enum functionality to ActiveRecord attributes

With more than one application server, validates_uniqueness_of becomes a lie. Two app servers -> two requests -> two near-simultaneous uniqueness checks -> two processes that commit to the database independently, violating this faux constraint. You'll need a database-level constraint for cases like these. consistency_fail will find your missing unique indexes, so you can add them and stop ignoring the C in ACID.

Uses custom html elements with attached IntersectionObserver to automatically lazy load partials via websockets

Fragment cache for graphql-ruby

Grease provides an adapter to use Tilt as extension of Sprockets 3 or later.

HasSecureToken provides you an easily way to geneatre uniques random tokens for any model in ruby on rails. **SecureRandom::base58** is used to generate the 24-character unique token, so collisions are highly unlikely.

A gem/plugin for Rails 3+ that enables client-side validation using ActiveModel + HTML5

Inkwell provides simple way to add social networking features like comments, reblogs, favorites, following/followers, communities, categories and timelines to your Ruby on Rails application.

Irwi is Ruby on Rails plugin which adds wiki functionality to your application.

Adds generic authorization to the jsonapi-resources gem using Pundit.

Add schema comments in your migrations, see them in model annotations and db/schema.rb dump

Mousetrap is a javascript library for handling keyboard shortcuts in your web applications. This gem integrates Mousetrap with Rails asset pipeline for easy of use.

OpenConferenceWare is an open source web application for events and conferences. This customizable, general-purpose platform provides proposals, sessions, schedules, tracks and more.

ROMA is one of the data storing systems for distributed key-value stores. It is a completely decentralized distributed system that consists of multiple processes, called nodes, on several machines. It is based on pure P2P architecture like a distributed hash table, thus it provides high availability and scalability.