activerecord

Ridgepole is a tool to manage DB schema. It defines DB schema using Rails DSL, and updates DB schema according to DSL. (like Chef/Puppet)

Gem to create tables grids with sortable columns and filters

Rails plugin that logs/displays a backtrace of all SQL queries executed by Active Record

SQL Server Adapter For Rails

Textacular exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular will extend ActiveRecord with named_scope methods making searching easy and fun!

ActiveRecord connection adapter for PostGIS, based on postgresql and rgeo

Filterrific is a Rails Engine plugin that makes it easy to filter, search, and sort your ActiveRecord lists.

Interact with REST services in an ActiveRecord-like manner

JavaLite is a cohesive collection of frameworks designed from ground up to add pleasure back to your daily life

Search engine like fulltext query support for ActiveRecord

Polo travels through your database and creates sample snapshots so you can work with real world data in development.

Active Record, Django-like queries, nested eager load and beauty __repr__ for SQLAlchemy

Rails/ActiveRecord support for distributed multi-tenant databases like Postgres+Citus

Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

Lazy loading associations for the ActiveRecord models

Handle unread records and mark them as read with Ruby on Rails

A collection of Ruby libraries for working with SQL on top of ActiveRecord's connection

Advisory locking for ActiveRecord

:hocho: An ActiveModel extension that automatically strips all attributes of leading and trailing whitespace before validation. If the attribute is blank, it strips the value to nil.

ActiveRecord PostgreSQL Adapter extension for using a cursor to return a large result set

A security extension for devise, meeting industry-standard security demands for web applications.

High Performance JSON Serialization for ActiveRecord & Ruby Objects

A very simple state machine plugin built on top of ActiveRecord::Enum

A Ruby Gem that adds annotations to your Rails models and route files.

Serialized json-hash-backed ActiveRecord attributes, super smooth

A fully-featured LDAP framework.

Multi-domain LDAP Authentication & Management for Laravel.

Database validations for ActiveRecord

A Gem for creating partial anonymized dumps of your database using your app model relations.

CQRS & event sourcing framework for Ruby