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.

Vanityassaf/vanity

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

Impressionistcharlotte-ruby/impressionist

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

ActsAsParanoidActsAsParanoid/acts_as_paranoid

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

rails_dbigorkasyanchuk/rails_db

A Rails gem providing a web-based database viewer and SQL query runner for inspecting, editing, and managing your application's database.

SorcerySorcery/sorcery

A stripped-down, bare-bones authentication library for Ruby on Rails applications.

Seed dumprroblak/seed_dump

A Rails plugin to dump database records into seed files (db/seeds.rb) for easy data persistence and sharing.

Foreignermatthuhiggins/foreigner

Adds foreign key helpers to ActiveRecord migrations and dumps foreign keys to schema.rb for MySQL, PostgreSQL, and SQLite.

DatabaseConsistencydjezzzl/database_consistency

A Ruby gem that detects inconsistencies between ActiveRecord models and database schema to prevent data issues.

ahoy_emailankane/ahoy_email

First-party email analytics for Rails applications, providing message history, UTM tagging, and click tracking.

rails-settings-cachedhuacnlee/rails-settings-cached

A Rails gem for managing global application settings with ActiveRecord-like syntax and built-in caching.

ByStarradar/by_star

A Ruby gem for querying ActiveRecord and Mongoid objects by time ranges like year, month, week, and day.

activerecord-sqlserver-adapterrails-sqlserver/activerecord-sqlserver-adapter

A Rails adapter enabling ActiveRecord to connect to and interact with Microsoft SQL Server databases.

textaculartextacular/textacular

A Ruby gem that exposes PostgreSQL's full-text search capabilities to ActiveRecord with simple search scopes.

MotorAdminmotor-admin/motor-admin-rails

A low-code admin panel and business intelligence Rails engine configurable entirely from the UI, no DSL required.

SearchCopmrkamel/search_cop

Adds search engine-like fulltext query support to ActiveRecord models using simple query strings and hash-based queries.

deep_cloneablemoiristo/deep_cloneable

A Ruby gem that adds deep cloning capabilities to ActiveRecord models, including user-specified associations.

bulk_insertjamis/bulk_insert

An ActiveRecord extension for efficiently inserting large datasets via single SQL statements in Ruby on Rails.

PoloIFTTT/polo

A Ruby gem that traverses ActiveRecord associations to generate SQL snapshots of real-world data for development environments.

SchemaPlusSchemaPlus/schema_plus

A collection of gems that extend ActiveRecord with automatic behaviors and advanced database features.

Reinnullobject/rein

A Ruby gem that adds database constraint methods to ActiveRecord migrations for PostgreSQL data integrity.

ActsAsTreeamerine/acts_as_tree

A Ruby gem that extends ActiveRecord to easily model hierarchical parent-child relationships in Rails applications.

transitionstroessner/transitions

A Ruby state machine implementation extracted from ActiveModel, providing event-driven state transitions with callbacks.

activity_notificationsimukappu/activity_notification

A Ruby on Rails gem for integrated user activity notifications with email, push, and optional targets like Slack and Amazon SNS.