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

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

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.

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

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

A query aggregator for OSINT based threat hunting

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

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

Multimedia story telling for the web.

Test your Rails Engines without needing a full Rails app

Your Rails console, 1984 style

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

Integrated user activity notifications for Ruby on Rails. Provides functions to configure multiple notification targets and make activity notifications with notifiable models, like adding comments, responding etc.

Add binary (not string) UUIDs to ActiveRecord in MySQL

Transparent ActiveRecord encryption

A collection of libraries for working with SQL on top of ActiveRecord's connection.

ThumbsUp provides dead-simple voting capabilities to ActiveRecord models with karma calculation, a la stackoverflow.com.

ActiveRecord provides validations on app level but it won't guarantee the consistent. In some cases, like `validates_uniqueness_of` it executes additional SQL query to the database and that is not very efficient. The main goal of the gem is to provide compatibility between database constraints and ActiveRecord validations with better performance and consistency.