Zero downtime migrations with ActiveRecord and PostgreSQL

Arproxy is a proxy layer that allows hooking into ActiveRecord query execution and injecting custom processing

Tools to build your double entry financial ledger

MetaWhere offers the ability to call any Arel predicate methods (with a few convenient aliases) on your Model's attributes instead of the ones normally offered by ActiveRecord's hash parameters. It also adds convenient syntax for order clauses, smarter mapping of nested h...

Extend ActiveRecord pluck to return hash instead of an array. Useful when plucking multiple columns.

Make your PG migrations safe.

Scoped search makes it easy to search your ActiveRecord-based models. It will create a named scope :search_for that can be called with a query string. It will build an SQL query using the provided query string and a definition that specifies on what fields to search. Because the func...

Create temporary table-backed ActiveRecord models for use in tests

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

Real PostgreSQL 9.5+ upserts using ON CONFLICT for ActiveRecord

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

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...

A good, simple, solid tagging extension for ActiveRecord

Multiple databases for Rails

Rails extensions for using Roar in the popular web framework.

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.