Fix n+1 aggregate sql functions for rails

Graph functionality for ActiveRecord

Instruments for Factory Girl

Factories via fixtures

Treat fixtures like factories and factories like fixtures

Token auth for grape apps

GraphQL cursor-based stable pagination to work with Active Record relations

Guard::Migrate automatically runs your database migrations when needed

Simple way to manage feature rollout / flipping

Ignore problematic column names (like 'attributes' or 'class') in ActiveRecord models for legacy database schemas

Typical paranoid gem built for Rails 4 and with the minimum code needed to satisfy acts_as_paranoid's API

A Rails engine to durably deliver schematized events to Amazon Kinesis via DelayedJob.

kakurenbo-puti provides an ActiveRecord-friendly soft-delete gem. This gem does not override methods of ActiveRecord. I think that kakurenbo-puti is cho-iketeru! (very cool!)

Manage your Amazon Kindle highlights: Sync and cache to an ActiveRecord database and output in various formats

This plugin lets you define specific columns in ActiveRecord models to be loaded lazily

llm.rb is Ruby's capable AI runtime. It runs on Ruby's standard library by default. loads optional pieces only when needed, and offers a single runtime for providers, agents, tools, skills, MCP, A2A (Agent2Agent), RAG (vector stores & embeddings), streaming, files, and persisted state. As a bonus, llm.rb is also available for mruby. It supports OpenAI, OpenAI-compatible endpoints, Anthropic, Google Gemini, DeepSeek, xAI, Z.ai, AWS Bedrock, Ollama, and llama.cpp. It also includes built-in ActiveRecord and Sequel support, plus concurrent tool execution through threads, tasks (via async gem), fibers, ractors, and fork (via xchan.rb gem).

Use database lookup tables in AR models.

ManageIQ Appliance Console

Ruby client for memcached supporting advanced protocol features and pluggable architecture.

Gives you binaries like mysql2csv, mysql2json, and mysql2xml, and Ruby classes to match.