ActiveRecordMerger provides an extendable framework for merging ActiveRecord models, including complex scenarios involving associations, while ensuring data integrity and providing hooks for custom merge logic.

ActiveRecord Migration Notes hooks into the Rails migrations and monitors if the migrations contain a note methods that should be shown afterwards.

Provides a opinionated migration wrapper for ActiveRecord 5+

Extension for multi language of active-record.

Mock ActiveRecord tables to test concerns and other code.

ActiveRecord generator and RSpec templates that add some basic functionality to the model and its spec

map activerecord models to tables depending on context

An ActiveRecord::LogSubscriber which records only mod sql.

A custom ActiveRecord serializer using MessagePack

Enable the query_cache for your abstract base class inherited from ActiveRecord::Base

A maintained fork of activerecord-multi-tenant (Citus Data) with support for Rails 6.0 through 8.1. Drop-in replacement: same MultiTenant API, same require path.

If you are stuck with a MySQL database where the naming is, well, unrailslike, activerecord-mysql2-legacy-db-adapter offers a way to do the translation. It works at the driver level and doesn't require you ro change the structure of the database. Also there are no database views which should be kept up to date as you add or remove fields.

Allow setting mysql driver flags in database.yml for Rails apps.

Dump the type information of a non-standard primary key.

It is the library to reconnect automatically when ActiveRecord is disconnected from MySQL.

An ActiveRecord extension for enabling SQL_CACHE and SQL_NO_CACHE in MySQL queries

ActiveRecord::MySQL::Strict adds validations to ActiveRecord models to make sure they do not trigger errors in MySQL strict mode.

Cleaner structure.sql for MySQL.

Adds a :uuid column to ActiveRecord MySQL2 Adapter. Store UUIDs as 16 bytes binary column.

Adds :destroy_if option to accepts_nested_attributes_for, which is basically a stronger version of :reject_if that destroys existing records, too.