Similar to globalize, but uses PostgreSQL's JSONB to store data in a single field. No additional tables required. Very thin abstraction

Tusk is a minimal pub / sub system with multiple observer strategies. Tusk builds upon the Observer API from stdlib in order to provide a mostly consistent API for building cross thread or process pub / sub systems. Currently, Tusk supports Redis and PostgreSQL as message bus back ends.

Allows rails models to work as the edges and nodes of a directed acyclic graph (dag). The edges may be typed.

Create associations that combine multiple Active Record associations using a SQL UNION under the hood, with full support for joins, preloading and eager loading on the union association, as well as through-union associations.

A gem to include all the USDA nutrient data quickly into a ruby project

Keep your code DRY by inferring column validations from table properties! Automagically validate presence, length, numericality, inclusion and uniqueness of ActiveRecord backed columns.

Action Draft brings your ActiveRecord model to storage multiple draft attributes without add columns to the business table.

Allow to track changes of records which done through ActiveAdmin

This gem helps you build nice filters in Activeadmin. It combines Select2, PostgresSQL and Ajax to create an easy to use select field.

ActiveAdmin CMS extension

ActiveRecord integration for encrypted querying operations

Extend your Rails models without changing DB schema.

Support for binary UUIDs in ActiveRecord

Extends ActiveRecord to support covering indexes in PostgreSQL using the INCLUDE clause.

ActiveRecord adapter for AWS Aurora DSQL (PostgreSQL)

A safe way to accept user parameters and query against your ActiveRecord Models

ActiveRecord extension to allow partitioning ids into regions, for merge replication purposes

Add PostgreSQL multiranges support

PostgreSQL PGCrypto support for ActiveRecord models.

Several extensions to ActiveRecord's PostgreSQLAdapter.