Validates Cnpj

Validates CPF

Simple gem helpful in validating standard credit card forms

Help you discover errors early.

extend ActiveRecord validations by checking if a string is a valid email address

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

Add Japanese validators

Automatically adds validations to ActiveRecord models that match your database constraints

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

Provides a clean DSL to validate params for controller actions.

Simple, powerful, and constraint-based validation

EachValidator that adds a parent model's association's validation errors to the parent model

Validates wether an association belongs to the same owner

The purpose of this gem is to validate countrycodes in ISO 3166-1 alpha-2 format

ActiveRecord callback which handle the name duplication in your model.

Validate iban

To prevent noobs from being uber noobs

ActiveModel validator that ensures Word-tags hasn't been accidentally pasted into WYSIWYG attributes.