ActiveRecord

Active Record Doctorgregnavis/active_record_doctor

A Ruby gem that detects database issues in Rails applications before they reach production.

Chewytoptal/chewy

A high-level Object Document Mapper (ODM) for Elasticsearch in Ruby, built on the official elasticsearch-ruby client.

Statesmangocardless/statesman

A robust, opinionated state machine library for Ruby that provides an audit trail and data integrity.

money-railsRubyMoney/money-rails

A Rails integration gem for the Money library, enabling easy handling of currency and monetary values in ActiveRecord and Mongoid models.

Large Hadron Migratorsoundcloud/lhm

A Ruby gem for performing online MySQL schema migrations without locking tables, enabling agile database evolution at scale.

marginaliabasecamp/marginalia

Attach comments to ActiveRecord SQL queries to trace their origin in Rails applications.

Enumerizebrainspec/enumerize

A Ruby gem for adding enumerated attributes with I18n support and ORM integrations like ActiveRecord and Mongoid.

has_scopeplataformatec/has_scope

Dynamically apply named scopes to Rails resources based on incoming controller parameters for flexible filtering.

has_scopeheartcombo/has_scope

A Ruby gem that maps incoming controller parameters to named scopes for dynamic resource filtering in Rails applications.

Acts As TennantErwinM/acts_as_tenant

A Ruby on Rails gem for row-level multi-tenancy using a shared database strategy.

goldiloadersalsify/goldiloader

A Ruby gem that automatically eager loads ActiveRecord associations to prevent N+1 queries without manual configuration.

Mailboxermailboxer/mailboxer

A Rails gem for adding private messaging and notification systems to web applications.

pg_searchCasecommons/pg_search

Adds PostgreSQL full-text search capabilities to ActiveRecord models with named scopes and multi-model search.

Impressionistcharlotte-ruby/impressionist

A Rails plugin for tracking page views and custom impressions, ignoring bots and providing in-app analytics.

Vanityassaf/vanity

A/B testing framework for Ruby on Rails applications with datastore agnostic experiment tracking.

ActsAsParanoidActsAsParanoid/acts_as_paranoid

A Rails plugin that adds soft delete functionality to ActiveRecord models, hiding records instead of permanently deleting them.