This gem automatically logs SQL EXPLAIN of every queries. You can check naturally every SQL EXPLAIN from development log, without manually executions.

ActiveRecord extension to allow partitioning ids into regions, for merge replication purposes

Specify columns like you would with ActiveRecord migrations and then run .auto_upgrade! Based on the mini_record gem from Davide D'Agostino, it adds fewer aliases, doesn't create timestamps and relationship columns automatically.

An ActiveRecord adapter for MySQL, based on mysql gem.

Implements the Null Object Pattern for nil values in ActiveRecord associations.

Database sharding library for ActiveRecord

Shorten index name

This gem changes ActiveRecord's query logs to be compatible with the sqlcommenter format.

Guarantee uniqueness of a single attribute across one or more children of an ActiveRecord object Works around https://github.com/rails/rails/issues/4568

Use your DB as a cache store

write-through cache store that allows you to chain multiple cache stores together

Provides a thread-isolated attributes singleton for Rails applications pre v5.2.0.

ActiveRecord DB Store engine for ActiveSupport::Cache

Typed store for active records json columns (postgresql, mysql, sqlite)

A RubyGem for ActivityStreams Publishers

ActsAsIcontact connects Ruby applications with the iContact e-mail marketing service using the iContact API v2.0. Building on the RestClient gem, it offers two significant feature sets: * Simple, consistent access to all resources in the iContact API; and * Automatic synchronizing between ActiveRecord models and iContact contact lists for Rails applications.

This gem will let you inherit any attribute or relation from the parent model.

Acts as kaltura

Track activities in your ActiveRecord models.

A ruby gem to handle multiple user roles on a Rails app, it also has Devise support