Rails Lens provides unified visualization and annotation for Rails 7.2+ applications, integrating ERD generation and model annotations.

Pattern matching for Rails applications

Patching rails include/select/virtual attributes issue ( https://github.com/rails/rails/issues/15185 )

This is an ActiveRecord integration for the SQL prettifier gem niceql.

Ruby Amazon Web Services Cloud Search Interface

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.

RecordFilter is a Pure-ruby criteria API for building complex queries in ActiveRecord. It supports queries that are built on the fly as well as named filters that can be added to objects and chained to create complex queries. It also gets rid of the nasty hard-coded SQL that shows up in most Acti...

Fast and unobtrusive activity tracking of ActiveRecord models using DataMapper and Redis

Adds support in ActiveRecord for foreign_keys, complex indexes and other database-related stuff. Easily create foreign_keys, complex indexes and views.

Return struct results from ActiveRecord relation queries

Admin interface for RubyOnRails projects inspired by Leaf CMS

A collection of RSpec matchers for web apps.

Rescues unique constraint violations and turns them into ActiveRecord errors

Provides a relational feature to your Rails application.

This gem provides two-way bindings between Salesforce records and records in an ActiveRecord-compatible database. It leans on the Restforce library for Salesforce API interactions, and provides a self-daemonizing binary which keeps records in sync by way of a tight polling loop.

Model serialization, paging, side-loading and filtering

When you write a web API, you make a promise to the world. RSpec API helps you keep your promise.

ruby-ensembl-api provides a ruby API to the Ensembl databases (http://www.ensembl.org)

Provide a language server implementation for ruby in ruby. See https://microsoft.github.io/language-server-protocol/ "A Language Server is meant to provide the language-specific smarts and communicate with development tools over a protocol that enables inter-process communication."

SafeFinder lets you define model's null_object through simple DSL, and returns it when you can't find a result.