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...

ActiveWarehouse ETL is a pure Ruby Extract-Transform-Load application for loading data into a database.

A good, simple, solid tagging extension for ActiveRecord

Rails extensions for using Roar in the popular web framework.

Make your PG migrations safe.

Idempotent operations for Rails apps, built on top of ActiveJob.

Make your model acts as a list. This acts_as extension provides the capabilities for sorting and reordering a number of objects in a list. The class that has this specified needs to have a +position+ column defined as an integer on the mapped database table.

Execute irreversible actions only when transactions are not rolled back

Rails integration for BreezyJS

Easy SQL based report generation with the ability to accept request parameters and render multiple formats.

Easily create robust, standardized API endpoints using lightning-fast database queries

Add social network friendship features to your Active Record models.

An extension for Lograge to log SQL queries

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

Multiple databases for Rails

A simple framework for building APIs with Grape

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

Find next / previous Active Record(s) in one efficient query

Add width, height and size methods to paperclip images

Write Through and Read Through caching library inspired by CacheMoney and cache_fu, support ActiveRecord 4.