Keep a DRY history of your ActiveRecord models' changes

Caches retrieved information to your user profile and reuses it when you query again.

Token auth for grape apps

GraphQL::QueryResolver is an add-on to graphql-ruby that allows your field resolvers to minimize N+1 SELECTS issued by ActiveRecord.

Allows multiple environments in database.yml, and dynamically switching them.

Provides an easy way to work with bit fields in active record

Allows for your ActiveRecord models to have drafts which are stored in a separate duplicate table.

Simple way to manage feature rollout / flipping

Rails I18n library for ActiveRecord model/data translation using PostgreSQL's hstore datatype. Translations are stored directly in the model table rather than shadow tables.

A basic metadata editor for hydra-head

Typical paranoid gem built for Rails 4 and with the minimum code needed to satisfy acts_as_paranoid's API

Topological Inventory Persister

If only this were easier...

provides soft delete. Kakurenbo is a re-implementation of paranoia and acts_as_paranoid for Rails4 and 3. implemented a function that other gems are not enough. The usage of the Kakurenbo is very very very simple. Only add `deleted_at`(datetime) to column. Of course you can use `acts_as_paranoid`.In addition, Kakurenbo has many advantageous.

Model.validates { presence_of :name }

A gem for easily using read replicas

Kogno is an open source framework running on the Ruby programming language for developing conversational applications.

Better Stack Rails integration

A simple DB queueing library built on top of ActiveRecord.

MerbAdmin is a Merb plugin that provides an easy-to-use interface for managing your data