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!)

Model.validates { presence_of :name }

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 a lightweight runtime for building capable AI systems in Ruby. It is not just an API wrapper. llm.rb gives you one runtime for providers, contexts, agents, tools, MCP servers, streaming, schemas, files, and persisted state, so real systems can be built out of one coherent execution model instead of a pile of adapters. It stays close to Ruby, runs on the standard library by default, loads optional pieces only when needed, includes built-in ActiveRecord support through acts_as_llm and acts_as_agent, includes built-in Sequel support through plugin :llm, and is designed for engineers who want control over long-lived, tool-capable, stateful AI workflows instead of just request/response helpers.

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.

Rails plugin to set created_by, updated_by, deleted_by to ActiveRecord objects. Supports associations.

Ruby wrapper for Amazon CloudSearch (aws-sdk), with ActiveRecord, Mongoid support for easy integration with your Rails application

Writer methods parameters normalization

once-ler supercharges your let's and before's with the performance of before(:all)

Migrations

Pandas wrapper for Ruby

Allow Paperclip attachments to be stored on FTP servers

Auto-order table columns for optimize disk space usage

ActiveRecord extension for querying hstore and jsonb.

This gem will help you to integrate PostgreSQL RLS to help you develop a great multitenancy application checkout the repository at https://github.com/Dandush03/pg_rls

Adds methods to ActiveRecord::Migration to create and manage PostgreSQL objects in Rails