Read-write split your DB yo

Social Stream is a Ruby on Rails engine for building social network websites. It supports contacts, posts, file uploads, private messages and much more.

The best Rails 6.0+ forums engine ever. Its goal is to be as simple and feature rich as possible. Thredded works with SQLite, MySQL (v5.6.4+), and PostgreSQL. See the demo at https://thredded.org/.

Identify database issues before they hit production.

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

Provides the Import command for Jekyll.

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.

Database-backed Active Job backend.

Jetpants is an automation toolkit for handling monstrously large MySQL database topologies. It is geared towards common operational tasks like cloning slaves, rebalancing shards, and performing master promotions. It features a command suite for easy use by operations staff, though it's also a full Ruby library for use in developing custom migration scripts and database automation.

ActiveRecord and Mongoid extension for easier date scopes and time ranges

Monologue is a basic blogging engine. It is a Rails mountable engine so it can be mounted in any 4.0.X + apps

Provide an easy way to check the consistency of the database constraints with the application validations.

A query aggregator for OSINT based threat hunting

Multimedia story telling for the web.

This gem creates a scope for unread objects and adds methods to mark objects as read

Apartment allows Rack applications to deal with database multitenancy through ActiveRecord

Solves the problem of trying to get all the changes to an object during a transaction in an after_commit callbacks.

Test your Rails Engines without needing a full Rails app

Make it easy to upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates merge functions for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.