ActiveRecord

deviseheartcombo/devise

Flexible authentication solution for Ruby on Rails based on Warden, offering modular authentication modules.

Deviseplataformatec/devise

A flexible authentication solution for Ruby on Rails applications based on the Warden Rack framework.

Paperclipthoughtbot/paperclip

A deprecated Ruby gem for easy file attachment management in ActiveRecord with image processing capabilities.

Carrierwavecarrierwaveuploader/carrierwave

A simple and flexible Ruby gem for handling file uploads in Rails, Sinatra, and other Rack-based web applications.

kaminarikaminari/kaminari

A scope-based, customizable paginator for Ruby web apps supporting multiple ORMs and template engines.

rails_adminrailsadminteam/rails_admin

A Rails engine providing an easy-to-use admin interface for managing application data.

RailsAdminsferik/rails_admin

A Rails engine providing an easy-to-use admin interface for managing application data.

Bulletflyerhzm/bullet

A Ruby gem that detects N+1 queries, unused eager loading, and missing counter caches to improve application performance.

PaperTrailairblade/paper_trail

Track changes to your Rails models for auditing, versioning, and reverting to previous states.

Geocoderalexreisner/geocoder

A complete Ruby geocoding solution with forward/reverse geocoding, IP address lookup, and ActiveRecord/Mongoid integration.

FriendlyIdnorman/friendly_id

A comprehensive slugging and permalink plugin for ActiveRecord that creates human-friendly URLs and works with strings as numeric IDs.

ransackactiverecord-hackery/ransack

A Ruby gem for adding object-based search and filtering to Rails applications without external dependencies.

draperdrapergem/draper

A decorator/view-model library for Rails applications that adds an object-oriented layer of presentation logic.

formtasticjustinfrench/formtastic

A Rails form builder DSL that generates semantically rich, accessible HTML forms with minimal code.

ActsAsTaggableOnmbleigh/acts-as-taggable-on

A Rails plugin for adding flexible, multi-context tagging to ActiveRecord models.

Delayed Jobcollectiveidea/delayed_job

A database-backed asynchronous priority queue system for Ruby on Rails, extracted from Shopify.

Authlogicbinarylogic/authlogic

An unobtrusive Ruby authentication library for ActiveRecord-based Rails applications.

Rails ERDvoormedia/rails-erd

Generate Entity-Relationship Diagrams for Rails applications using Active Record model reflection.

flipperjnunemaker/flipper

A Ruby gem for beautiful, performant feature flags with granular control and multiple storage adapters.

Ancestrystefankroes/ancestry

A Ruby gem for organizing ActiveRecord models into efficient tree structures using the materialized path pattern.

Auditedcollectiveidea/audited

An ActiveRecord extension for Rails that logs all changes to your models, including who made them and why.

rolifyRolifyCommunity/rolify

A simple Ruby role management library with resource scoping, designed to integrate with authentication and authorization gems.

elasticsearch-railselastic/elasticsearch-rails

A suite of Ruby gems providing seamless Elasticsearch integration for ActiveModel/Record, Rails applications, and Ruby objects.

public_activitychaps-io/public_activity

A Ruby gem for tracking model changes and creating activity feeds in Rails applications, similar to GitHub's public activity.

paranoiarubysherpas/paranoia

A Rails gem for soft-deleting records by setting a deleted_at timestamp instead of removing them from the database.

Paranoiaradar/paranoia

A Rails gem for soft-deleting records by setting a deleted_at timestamp instead of removing them from the database.

Apartmentinfluitive/apartment

A Ruby gem for implementing database multi-tenancy in Rails applications using PostgreSQL schemas or separate databases.

Discardjhawthorn/discard

A simple ActiveRecord mixin for soft-deleting records by flagging them as discarded, without overriding ActiveRecord methods.

Awesome Nested Setcollectiveidea/awesome_nested_set

A Ruby on Rails ActiveRecord implementation of the nested set pattern for efficient hierarchical data management.

CKEditorgaletahub/ckeditor

A Ruby on Rails integration gem for CKEditor 4.x, providing WYSIWYG editor functionality with file upload support.

Rpushrpush/rpush

A Ruby gem for sending push notifications to iOS, Android, Windows, and web platforms with reliability and advanced features.

globalizeglobalize/globalize

Rails I18n library for ActiveRecord model translations, enabling multilingual content storage in separate tables.

counter_culturemagnusvk/counter_culture

A Rails gem providing advanced, flexible counter caches that update on value changes and support multi-level relations.

ActsAsListswanandp/acts_as_list

An ActiveRecord plugin for managing ordered lists of items with scoped positioning and reordering methods.

IdentityCacheShopify/identity_cache

A blob-level read-through caching solution for ActiveRecord that adds fetch methods to cache model objects and associations using Memcached.

closure_treemceachen/closure_tree

A Ruby gem for efficiently modeling hierarchical data in ActiveRecord using closure tree tables.