kakurenbo-puti provides an ActiveRecord-friendly soft-delete gem. This gem does not override methods of ActiveRecord. I think that kakurenbo-puti is cho-iketeru! (very cool!)

A gem for easily using read replicas

This plugin lets you define specific columns in ActiveRecord models to be loaded lazily

Use database lookup tables in AR models.

A user-centric voting extension for Rails 3 applications.

Ruby client for memcached supporting advanced protocol features and pluggable architecture.

Gives you binaries like mysql2csv, mysql2json, and mysql2xml, and Ruby classes to match.

Rails plugin to set created_by, updated_by, deleted_by to ActiveRecord objects. Supports associations.

Act as Notified is a flexible framework to add notifications to a Rails application

Octoshark is a library for switching between multiple ActiveRecord connections

Octoshark is a library for switching between multiple ActiveRecord connections

Provides automatic deadlock retry and logging functionality for ActiveRecord and MySQL

Pandas wrapper for Ruby

Paperclip-Azure is a [Paperclip](https://github.com/thoughtbot/paperclip) storage driver for storing files in a Microsoft Azure Blob.

This gem will help you to integrate PostgreSQL RLS to help you develop a great multitenancy application checkout the repository at https://github.com/Dandush03/pg_rls

Allows the *_type field in the DB to be an integer rather than a string

Power Enum allows you to treat instances of your ActiveRecord models as though they were an enumeration of values. It allows you to cleanly solve many of the problems that the traditional Rails alternatives handle poorly if at all. It is particularly suitable for scenarios where your Rails application is not the only user of the database, such as when it's used for analytics or reporting.

Automatic generates public unique identifier for model

Build complex SQL queries by defining each subquery separately. Query::Composer will then compose those subqueries together, nesting as needed, to produce the final SQL query.

Failover for ActiveRecord and Redis