Rails plugin to add DFP tags to your site. AKA Dart for Publishers Small Business, Google Ad Manager, Google Publisher Tags, GPT...

This is a simple gem to compare 2 objects of the same class and return a hash of differences

Provides a concern for monitoring changes to has_many and has_many_and_belongs_to associations using ActiveModel::Dirty.

A Ruby gem that implements single-table inheritance (STI) for ActiveRecord models using string, integer and boolean column types.

Messaging engine

Messaging system based on the reactor pattern. You can publish messages to a queue and then a demultiplexer runs an event loop which pops items from the queue and hands it over to a dispatcher. The dispatcher hands over the message to the appropriate handler. You can choose your own queueing service.

Sinatra Based Application Framework

Delayed Job Dashboard

Create web applications using Dojo Toolkit (1.8) and Ruby on Rails 3

Mark methods as deprecated

A double-entry accural accounting system

ActiveRecord-backed data store for Dragonfly

An opinionated rails drip email engine that depends on ActiveRecord and ActionMailer

Dropkiq simplifies the creation of Liquid (from Shopify) expressions. The Dropkiq Ruby Gem automates the maintenance of fixtures within Dropkiq to allow for testing Liquid expressions.

Mutations gem interface implemented with `dry-rb`’s validation schemas.

A collection of components based on ViewComponent intended to ease the building of web applications with the Système de Design de l'État (DSFR)

It looks like Active Record and quacks like Active Record, but it can't do persistence or querying, it's Duck Record! Actually it's extract from Active Record. Used for creating virtual models like ActiveType or ModelAttribute does.

DumpedRailers helps you take a snapshot of ActiveRecord models in Rails-compatible fixture format, and re-import them wherever necessary without destroying current data you have.

For tasks that can be started early and evaluated late. Typically one might want start multiple heavy tasks concurrent. This is already solvable with threads or the [reactor-pattern](http://rubyeventmachine.com/) but setting this up could be cumbersome or require direct interactions with threads ex. Dunder is a simple way of abstracting this: you simply pass a block to Dunder.load with the expected class as the argument

Dynamically add attributes on ActiveRecord.