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.

Automatically eager loads Rails associations as associations are traversed

Prometheus metric collector and exporter for Ruby

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

Adds typed jsonb backed fields to your ActiveRecord models.

lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.

Advisory locking for ActiveRecord

Identify database issues before they hit production.

Oracle "enhanced" ActiveRecord adapter contains useful additional methods for working with new and legacy Oracle databases. This adapter is superset of original ActiveRecord Oracle adapter.

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

Monitors Ruby apps and reports detailed metrics on performance to Scout.

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

Quick way to inspect your Rails database, see content of tables, filter, export them to CSV, Excel, EXPLAIN SQL and run SQL queries.

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

Provides simple way to integrate regression test selection approach to your RSpec test suite

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...

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.

Extends Sinatra with ActiveRecord helpers.

Extension to ActiveRecord::Base for validating hostnames

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.