Imagine you have an Account model which has many transactions. calculable_attrs gem allows you to define Account#balance as SUM(transactions.amount) directly in your Account model. And solves n+1 problem for you in an elegant way.

Validate carrierwave uploads are virus free with clamav.

Asynchronously LISTEN for Postgresql NOTIFY messages with payloads and Do Something

An Active Record extension to provide state callbacks

Simple ActiveRecord audit system

circuit_switch is a gem for 'difficult' application. This switch helps to make changes easier and deploy safely.

For Rails applications - add creator and updater to your ActiveRecord models and automatically set these from current_user See the README on github for more info

Show recently news on the terminal.

A tool for automated testing and debugging of automation scripts (e.g., Chef).

Add comment support for ActiveRecord models.

ComputedModel is a helper for building a read-only model (sometimes called a view) from multiple sources of models. It comes with batch loading and dependency resolution for better performance. It is designed to be universal. It's as easy as pie to pull data from both ActiveRecord and remote ser...

Give condition when to increment/decrement counter cache.

Consent permission based authorization

Consort allows you to define relationships between various ORM/ODMs and access them similarly to ActiveRecord associations.

Consort allows you to define relationships between various ORM/ODMs and access them similarly to ActiveRecord associations.

Loads all records from the table on first use, and thereafter returns the cached (and frozen) records for all find calls. Optionally, creates class-level methods you can use to grab the records, named after the name field you specify.

Dynamic scopes by convention for ActiveRecord 3

copycats - command line tool (and core library) crypto cats / kitties collectibles unchained - buy! sell! hodl! sire! - play for free - runs off the blockchain w/ ledger lite - no ether / gas required; run your own peer-to-peer (P2P) network node over HTTP

Replacement for ActiveRecord belongs_to :counter_cache with ability to specify conditions.

A general purpose Rails utility plugin.