Kangal brings you a nice set of custom validators for Rails 4.

Ride the rails but don't touch them.

LHS ia a Rails-Gem, providing an ActiveRecord like interface to access HTTP-JSON-Services from Rails Applications. Special features provided by this gem are: Multiple endpoint configuration per resource, active-record-like query-chains, scopes, error handling, relations, request cycle cache, batch processing, including linked resources (hypermedia), data maps (data accessing), nested-resource handling, ActiveModel like backend validation conversion, formbuilder-compatible, three types of pagination support, service configuration per resource, kaminari-support and much more.

An object that works with form_for that encapsulates validations and data management, leaving the business logic up to your testable old self.

Phoenix LiveView-style live components for Ruby on Rails. Server-side state management over ActionCable with reactive variables, automatic change detection, and Stimulus integration.

LogicalModel allows to use a resource as a model. It is based on web presentation http://www.slideshare.net/ihower/serviceoriented-design-and-implement-with-rails3

Quick and easy mapping with MapPLZ

Input Mask validation for ActiveModel

A small and efficient validation library for Rails and anything that uses Ruby.

Lightweight wrapper for MongoDB documents

Sugar around ActiveModel::Model

MiniTest matchers for ActiveModel::Validations

A tool for migrating Rails applications from Protected Attributes to Strong Parameters.

ODM for MongoDB

MongoModel is a MongoDB ORM for Ruby/Rails similar to ActiveRecord and DataMapper.

mongo_odm is a flexible persistence module for any Ruby class to MongoDB.

A CLI and ruby client for mvg-live.de, the real-time interface to Munich's public transport

Api client for AADE myData

ActiveModel mapper for JSON fields

OpenAPI Specification renderer.