Provides a DSL for common validation formats like Date, Array, DateTime etc.

expose presence-validation in a more controller-friendly manner

a class to validate uris. it builded for rails

Rails UseCase and Service classes

Validates whether associations are uniqueness when using accepts_nested_attributes_for.

Rails Validation API provides a powerful for validating request parameters in Rails applications. Features include automatic validator loading based on controller/action names, nested parameter validation, custom error handling, and seamless integration with Rails controllers through concerns. Perfect for API applications requiring robust parameter validation with minimal boilerplate code.

HMAC Validation for Rails.

Client Gem for Rainmaker LRO

Parser for range sentences like '1990; 1995-2000; 2005'

ActiveModel validator for ranges

Model-wrappers to customize ransack search

Services for Ruby on Rails.

Code that understands code and can change it programmatically

CASL Assembler / Simulator

A RBS files generator for activemodel gem

Framework to provide cqrs + eventsourcing functionality in ruby.

enable domain driven design approach via POROs and Repositories vs Rails' ActiveRecord

RDF for SQLite is a container gem for getting the simplest RDF-based applications off the ground. It uses quite a few modular gems and fixes a little inconsistency between RDF.rb and ActiveModel. This basically boils down to RDF.rb + ActiveModel + Spira + SQLite3 to create a pretty straightforward repository, serializer, parser, and ORM.

Integrates Person with salesforce as a Lead.

Basically based on RFC 5322, with some additional validations so it works on almost all variety of systems.