Redirect ActiveRecord (Rails) reads to replica databases while ensuring all writes go to the primary database.

Redirect ActiveRecord (Rails) reads to slave databases while ensuring all writes go to the master database.

*Atomic archiving/unarchiving for ActiveRecord-based apps* We had the problem that acts_as_paranoid and similar plugins/gems always work on a record by record basis and made it very difficult to restore records atomically (or archive them, for that matter). Because the archive and unarchive methods are in transactions, and every archival record involved gets the same archive number upon archiving, you can easily restore or remove an entire set of records without having to worry about partial deletion or restoration. Additionally, other plugins generally screw with how destroy/delete work. We don't because we actually want to be able to destroy records.

Simple tagging gem for Rails using postgres array.

Adds new features to Arel

Write-through and Read-through Cacheing for ActiveRecord

This rubygem does not have a description or summary.

Give your models as-of date temporal extensions. Built entirely for PostgreSQL >= 9.4

Provides automatic deadlock retry and logging functionality for ActiveRecord and MySQL

Fast batch deletes for Active Record and Postgres

Easy role authorization in rails

Ferry is a data migration and visualization command line tool rubygem that seeks to simplify the increasingly prevalent big data problems for developers

hydra_attribute is an implementation of EAV pattern for ActiveRecord models.

Rails Driver and Adapter for IBM Data Servers: {DB2 on Linux/Unix/Windows, DB2 on zOS, DB2 on i5/OS, Informix (IDS)}

Rails I18n library for ActiveRecord model/data translation using PostgreSQL's JSONB datatype. Translations are stored directly in the model table rather than shadow tables.

Organizes ActiveRecord models into a tree/hierarchy using a materialized path implementation based around PostgreSQL's ltree datatype. ltree's operators ensure that queries are fast and easily understood.

A user-centric flagging extension for Rails 3 applications.

Extend Ruby on Rails ActiveRecord with Neo4j nodes. Keep RDBMS and utilize the power of Neo4j queries. Originally by @elado.

Disables observers during testing, allowing you to write model tests that are completely decoupled from the observer.

use pagy for cursor-based pagination with rails