Makes ActiveRecord defer/postpone saving the records you add to an habtm (has_and_belongs_to_many) or has_many association until you call model.save, allowing validation in the style of normal attributes. Additionally you can check inside before_save ...

The Deferring gem makes it possible to defer saving ActiveRecord associations until the parent object is saved.

Simple and composable validation and coercion of data structures inspired by clojure specs

Rack middleware to inflate incoming Gzip data from HTTP requests.

Kafka libraries for Ruby.

Detect keyboard mashing and other junk in your data.

Run your cron jobs with sidekiq, delayed_job, resque, or sucker_punch.

DataMapper backend for delayed_job

DataMapper backend for delayed_job

Aggregates Delayed::Job jobs into groups with group level management and lifecycle callbacks

Delayed::Job plugin to unlock jobs from dead workers

IronMQ backend for delayed_job

Amazon SQS backend for delayed_job

Allow you to quickly move a long call to background which then executed by resque

Presenters are easier with delegators, and other friends

ActiveSupport's delegation syntax is much more convenient than Ruby's stdlib Forwardable. This gem just extracts it as an independent functionality (available on-demand without monkey-patching Module).

flag database records as deleted and hide them from subsequent queries

Adds a new :dependent option for ActiveRecord associations that recursively deletes all dependent records without instantiating them.

A "compiler" for the Delorean programming language

This interface is used to get credit check, address informations and collection checks from the Deltavista/CRIF service.