A library for setting up model validations, such as in ActiveRecord.

Lint and syntax validation for onceover

Provides client side validations for forms with the http://formvalidation.io/ library.

MiniTest matchers for ActiveModel::Validations

Europe is a simple library for retrieving EU government data such as VAT information, VAT validation, currency exchange rates and country information.

A parser which converts dry-validation or dry-struct into valid swagger documentation

RFC822 compatible email validation and MX record check

Validate your ActiveRecord models on the client, showing their error and success messages by providing a validation controller.

A library for making it extremely fast for Rails developers to set up and save ActiveRecord instances when writing test cases. It aims to: * meet all your validations automatically * only make you specify the attributes you care about * give you a rich set of features so you can specify associa...

This gem allows you to conditionally validate your models, based on where in a multi-step process the user is.

BibleReferenceParser can parse scriptures passages, such as 'Gen. 1:15-18, 21' to the individual books, chapters and verses in the passage. It also provides validation for invalid book names, chapters, and verses.

Full-featured type system for any ruby project. Supports custom type definition, type validation, type casting and type categorizing. Provides a set of commonly used type categories and general purpose types. Has a flexible and simplest type definition toolchain.

ActiveModel email validation. Checks MX records, sub address, regex, whitelisted and blacklisted check

Simple and composable validation and coercion of data structures inspired by clojure specs

Encapsulates FoxyCart SSO, datafeed, and cart validation protocols

Optout helps you write code that will call exec() and system() like functions. It allows you to map hash keys to command line arguments and define validation rules that must be met before the command line options are created.

Allows defining structure of data and perform validation against it using json-schema

Access environment variables. Also includes presence validation, type coercion and default values.

Interface and protocol for validating and validation discovery

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