DbCharmer is a Rails plugin (and gem) that could be used to manage AR model connections, implement master/slave query schemes, sharding and other magic features many high-scale applications need.

A Ruby gem for YAML serialization and deserialization of ActiveRecord models with JSON schema generation.

I'll clean your data

Yet another paginator for Ruby on Rails adding pagination and filtering interface to ActiveRecords.

Yet another publish subscribe gem

The goal of this gem is to facilitates the use of Active Record in non Rails projects. The tasks in the db namespace that we use when developing Rails applications are a nice part of our lifes, so this gem tries to glue this in your application too.

YDD is a tool (a fork of yaml_db really) to make it generally easy to use it for things like copying databases from production to staging and the like.

Makes working with weeks more fun

SQL "raw" for Rails projects

Store yinx metadata with activerecord

ROXML is a Ruby library designed to make it easier for Ruby developers to work with XML. Using simple annotations, it enables Ruby classes to be mapped to XML. ROXML takes care of the marshalling and unmarshalling of mapped attributes so that developers can focus on building first-class Ruby clas...

Discord bot development framework.

Adds WSDL/SOAP and XML-RPC web service support to Action Pack

Zabbix application monitoring

Zabbix application monitoring

This gem provides a mountable Rails engine that provides single sign on, directory access and further Zaikio platform connectivity.

Communication with the Zabbix API made easy

isbn_validation adds an isbn validation routine to active record models.

Zero Downtime Migrator of mysql compatible databases

Includes a general and an ActiveRecord StaleObject-focused retry loop