Opt-in validations for your ActiveRecord models based on your MySQL database constraints, including text field size, UTF-8 encoding issues, and NOT NULL constraints.

Batch up your ActiveRecord "touch" operations for better performance. ActiveRecord::Base.delay_touching do ... end. When "end" is reached, all accumulated "touch" calls will be consolidated into as few database round trips as possible.

Provides transparent encryption for ActiveRecord. You can protect your data with any encryption algorithm you want.

ActiveRecord integration for KSUIDs using the ksuid gem

An ActiveRecord plugin providing a higher-level abstraction for SQL 'LIKE' queries

Add unsigned option to integer type for ActiveRecord's MySQL2 adapter

ActiveRecord OpenTracing intrumenter

This gem adds comments to the SQL to indicate where the SQL parts are constructed.

Gives a hook on MySQL warnings that allow you to either raise or log them.

Active Record support for PostgreSQL JSON type

A whole bunch of extensions the ActiveRecord PostgreSQL adapter.

Amazon Redshift adapter for ActiveRecord 7+

An Active Record extension for Multitenancy with PostgreSQL Row Level Security

Create ActiveRecord relations from UNIONs

Automatic database view creation for ActiveRecord

An implementation of repository pattern that can connect with any ORM

Use your DB as a cache store

ActiveRecord extension for sorted adjacency lists support

This is a ruby gem that provides drop in replacement for acts_as_tree but makes use of SQL recursive statement. Be sure to have a DBMS that supports recursive queries when using this gem (e.g. PostgreSQL or SQLite).

Annotate your models and keep your comments about fields.