N+1 auto-detection for Rails with zero false positives / false negatives

Profile RSpec test suites

Identify database issues before they hit production.

Automatically eager loads Rails associations as associations are traversed

UNIONs in ActiveRecord! Adds proper union and union_all methods to ActiveRecord::Relation.

This Gem adds useful methods to your Rails app to validate, display and save phone numbers.

ranked-model is a modern row sorting library built for Rails 4.2+. It uses ARel aggressively and is better optimized than most other libraries.

Migrate large tables without downtime by copying to a temporary table in chunks. The old table is not dropped. Instead, it is moved to timestamp_table_name for verification.

Migrate large tables without downtime by copying to a temporary table in chunks. The old table is not dropped. Instead, it is moved to timestamp_table_name for verification.

A database backed ActiveSupport::Cache::Store

Simple (but safe) token authentication for Rails apps or API with Devise.

Alchemy is a powerful, userfriendly and flexible Rails CMS.

Easy upload management for ActiveRecord

Nearest neighbor search for Rails

Attach comments to your ActiveRecord queries.

Overrides some basic methods for the current model so that calling #destroy sets a 'deleted_at' field to the current timestamp. ActiveRecord is required.

Ridgepole is a tool to manage DB schema. It defines DB schema using Rails DSL, and updates DB schema according to DSL.

Action caching for Action Pack (removed from core in Rails 4.0)

Persistent event repository implementation for RubyEventStore based on ActiveRecord. Ships with database schema and migrations suitable for PostgreSQL, MySQL ans SQLite database engines. Includes repository implementation with linearized writes to achieve log-like properties of streams on top of SQL database engine.

Adds extended functionality to Activerecord Postgres implementation