Organizes ActiveRecord models into a tree/hierarchy using a materialized path implementation based around PostgreSQL's ltree datatype. ltree's operators ensure that queries are fast and easily understood.

Ruby gem that automatically adds a lock timeout to all Active Record migrations

Store nested hashes and other types in ActiveRecord hstores

pg-eyeballs is a ruby gem that gives you detailed information about how the SQL queries created by the active record code you write are executed by the database. It gives you an easy, ruby friendly way to see the output of the Postgres EXPLAIN command and integrates with the popular query analysi...

Sync users and groups from LDAP to PostgreSQL

Adds missing native PostgreSQL data types to ActiveRecord and convenient querying extensions for ActiveRecord and Arel

A lightweight cron scheduler for the Que async job worker

Adds the ability to pull random records from ActiveRecord

This gem makes Rails console sessions less dangerous in specified environments by warning, color-coding, auto-sandboxing, and allowing read-only external connections (disables job queueing, non-GET requests, etc.)

Track what product being viewed, what being purchased. Who are consistant buyers etc.

Recursively traverse trees using a single SQL query

This gem enables your model to query the database using the earthdistance extension. This should be much faster than using trigonometry functions over standart indexs.

Rescue from MySQL and Sqlite duplicate errors

With Amountable, you can easily attach, organize and sum Ruby money fields to your models without migrating.

Extension for ActiveRecord that adds support for PostgreSQL array columns, mapping string values to integers.

An opinionated web framework build on web standards

integrated library system

https://github.com/tsukasaoishi/fresh_connection

Another business actions architecture for Rails apps

Adds recurring jobs for Sidekiq