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.

This gem automatically logs SQL EXPLAIN of every queries. You can check naturally every SQL EXPLAIN from development log, without manually executions.

Allow ActiveRecord to share a connection to multiple databases on the same host

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

ActiveRecord integration for KSUIDs using the ksuid gem

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

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.

This gem allows automatic connection switching between a primary and one read replica database in ActiveRecord. It pattern matches the SQL statement being sent to decide whether it should go to the replica (SELECT) or the primary (INSERT, UPDATE, DELETE).

Amazon Redshift adapter for ActiveRecord 7+

An Active Record extension for Multitenancy with PostgreSQL Row Level Security

Create ActiveRecord relations from UNIONs

Touch `updated_at` by default with calls to `update_column(s)` and `update_all`

Automatic database view creation for ActiveRecord

Define attributes in arel

An implementation of repository pattern that can connect with any ORM