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

Adds validation methods to ActiveModel for validating dates and times. Works with multiple ORMS.

Parameter whitelisting for Sinatra. Provides validation, defaults, and post-processing.

Lint and syntax validation for onceover

Parameter whitelisting for Sinatra. Provides validation, defaults, and post-processing.

A wrapper for backbone.validation in the Rails asset pipeline

ActiveModel validations for domains (including TLDs), ip addresses and email addresses with fully localization support.

Simple whole data validation via ActiveRecord

Generation, parsing, and validation of Instructure access tokens

Validation and helper methods for string based enums in rails

Make ActiveRecord defer/postpone saving the records you add to an habtm (has_and_belongs_to_many) association until you call model.save, allowing validation in the style of normal attributes.

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

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.

ruby client library for the validator.nu HTML5 validation API

A Ruby API providing parsing, generation and validation of CAP(Common Alerting Protocol) messages.

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

Rails Devs For Data Integrity catches unique key and foreign key violations coming from the MySQLdatabase and converts them into an error on the ActiveRecord object similar to validation errors

Define DSLs quickly and avoid the boilerplate write getters and setters. Oh, and it does validation too.

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...

Input Mask validation for ActiveModel