Framework for business logic classes in a Ruby on Rails application

Data mapper using ActiveRecord for data access

ActiveMatrix is a comprehensive Rails-native Matrix SDK that enables developers to build sophisticated multi-agent bot systems and real-time communication features. This gem provides deep Rails integration with ActiveRecord models, state machines for bot lifecycle management, multi-tiered memory systems, intelligent event routing, connection pooling, and built-in inter-agent communication. Perfect for building chatbots, automation systems, monitoring agents, and collaborative AI systems within Rails applications. Features include command handling, room management, media support, end-to-end encryption capabilities, and extensive protocol support (CS, AS, IS, SS).

Declares a service object and the #merge_all helper method for merging active record class instances.

Extends ActiveModel::Errors to allow messages to be generated that do not use the attribute name

Builds a tree of errors instead of the 1-dimension one generated by ActiveMode::Base#errors.messages.

This gem adds the ability for models to have an unlimited number of custom flags \ that are stored within one database column cell instead of several columns.

A gem that provides logging functionality for ActiveRecord models, storing logs in a separate table with support for log chains, metadata, and different visibility levels.

Render your JSON in a Normalizr-like JSON format

Adds methods for automatic deserialization from standard JSON and XML, and a variant implementation of serialization/deserialization for XML.

Modules/classes that extend AMS with more functionality

Vue Tables adapter for ActiveModel::Serializer

ActiveModel validators that validate the type of attributes, and that do recursive validation of contained objects parallel to ActiveRecord's validates_associated.

ActiveModel child model validations delegater.

Some reusable ActiveModel validations, including greater_than, boolean_presence, and at_least_one_present

This is useful when you want to define optional validations for a resource and keep it valid.

This is an example gem used in my RailsConf 2020 talk. Please don't use in production! https://bruckmayer.net/rails-conf-2020

Simple null objects in Active Record

ActiveWorkflow provides durable, idempotent workflow orchestration built on Rails Active Job. It supports sync and async steps, retries with backoff, signals, compensations, and pluggable persistence stores.

Presenters for rails.