Valet helps you write the sophisticated command-line interfaces you're so used to from GNU/Linux. It provides a beautiful API, rich template support, smart configuration, man page generator, and many other useful features. No matter how large or complex your application is, Valet tops it off with...

A gem to transform an IBAN number into europen account- and banknumbers

All methods that alter the contents of an array that implements this Gem are first checked to ensure that the added items are of the types allowed. All methods behave exactly as their Array counterparts, including additional forms, block processing, etc.

A Rails 3.1 & 3.2 version of Encrypted Cookie Store by FooBarWidget

ActiveModel Interface for validatable

Association add-on for the Validatable gem

Create validatable, tableless models for forms without hacking ActiveRecord.

Validations is a library for validating data structures.

It allows you to specify validations for method arguments, using `validate_args` to supply validation rules of a hash or array.

Allow for validation of only some attributes

Validates Cnpj

Validates CPF

Simple gem helpful in validating standard credit card forms

Validate HTML files as they leave your app by rack or by mail or by turbo-stream

Email validator that hits freemium providers one by one and returns normalized response.

Inspired by Airbnb blog post https://medium.com/airbnb-engineering/large-scale-payments-systems-and-ruby-on-rails-bfe5b89f6f4 - by including a module in any of your classes, you can validate the type and presence of a method's parameters.

ValidateMyRoutes provides a way to annotate Sinatra routes and validate parameters before executing the route

Validates the given string

Validates a NZ bank account against checksum rules

Provides a clean DSL to validate params for controller actions.