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 a...

Create temporary table-backed ActiveRecord models for use in tests

Add a blog to your Rails application in minutes with this mountable Rails Engine

LINES lets you manage your posts in a clear, consistent frontend. The gracefully slender editor keeps your editing simple and lets you just splash around in your ideas. Once you're happy, just hit publish and see your text, code examples, images, and links shine.

Mongify allows you to map your sql data into a mongodb document database with a simple DSL.

Obtain ActiveRecord results with a custom ordering with no need to store anything in the database.

This gem allows you to easily dump and transform subset of your ActiveRecord models and their relations.

This gem allows you to easily dump and transform subset of your ActiveRecord models and their relations.

Port of the Rails plugin "geokit-rails" to Rails 3, as a gem

Kuroko2 is a web-based job scheduler/workflow manager created at Cookpad Inc.

Easily run queries on shard and replica databases.

Execute your ActiveRecord migrations with Percona's pt-online-schema-change. Formerly known as Percona Migrator.

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 fast, safe, simple direct SQL executor for PG

ActsAsBookable is a reservation engine for Rails applications that allows resources to be booked. You can define availability rules for bookable models and set costraints to implement different types of booking (hotels, theaters, meeting rooms...)

Extends your user model with friendships management methods

Extract, Transform, and Load (ETL) ruby wrapper

Add schema comments in your migrations, see them in model annotations and db/schema.rb dump

Download, pull out of a ZIP/TAR/GZ/BZ2 archive, parse, correct, and import XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses Upsert internally for speed.

Enables your monitoring infrastructure to easily query the status of your app server's health. Provides routes under /up.