Import tabular data from spreadsheets or similar sources into data models

Amazon Redshift _makeshift_ adapter for ActiveRecord 4.

Allows the use of CockroachDB as a backend for ActiveRecord and Rails apps.

This 'acts_as' extension provides multi-table inheritance for rails models.

acts_as_xlsx lets you turn any ActiveRecord::Base inheriting class into an excel spreadsheet. It can be added to any finder method or scope chain and can use localized column and sheet names with I18n.

A Rails library for storing user sessions in a backend database

Auto-create models, views, controllers, and routes with this slick Rails extension

Compose, decouple and manage domain logic and data persistence separately. Works particularly great for composing form objects!

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.

Mine remote data into your ActiveRecord models. You can also perform associations and convert units.

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

Ruby workflow/orchestration engine

ruby-plsql gem provides simple Ruby API for calling Oracle PL/SQL procedures. It could be used both for accessing Oracle PL/SQL API procedures in legacy applications as well as it could be used to create PL/SQL unit tests using Ruby testing libraries.

SQL input/output plugin for Fluentd event collector

Fast fuzzy string matching for rails

The JitPreloader has the ability to send notifications when N+1 queries occur to help guage how problematic they are for your code base and a way to remove all of the commons explicitly or automatically

Log transitions on a state machine to support auditing and business process analytics.

Likeable allows you to make your models...well...likeable using redis.

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.