Parsing, conversion, and validation for dates, phonetic names, and numbers.

A ruby gem library for that offers utilities, version constraint parsing and validation.

Phone number validation forked from MOBI Wireless Management

Validations for making ActiveRecord objects immutable.

Client side validation with parsley and simple_form.

The beginning of a validation library

Valvat_cache caches in a json file results of the VIES validation keeping it a couple of weeks

Client-side HTML form validations

This gem unions a server-side ActiveModel password strength validation plugin with a client-side password strength estimation

DSL for method arguments validation and casting

Adds validation methods considering different country zip code formats. Currently, we can validate 130 countries.

Validating-Workflow is a finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'. * nice DSL to describe your states, events and transitions * robust integration with ActiveRecord and non relational data stores * various hooks fo...

Validation errors explanation done in good way for Padrino framework.

contextual validations for controllers and wanna learn to do other stuff good too

DSL for variable scoping / encapsulation for readability and organisation, by means of block indents and explicit variable declarations. Useful when organising complex conditions such as procs (case-in-point: complex `... if: -> {}` Rails model validations

Hecks JSON Schema Validations

It sure would be awesome if ActiveResource actually allowed us to do client-side validation of our ActiveResource objects like their documentation promises: http://apidock.com/rails/ActiveResource/Base

ActiveModel/ActiveRecord validator that can wrap other validators to notify of errors so that new validations can be safely added to an existing model.

[Deprecated] Flexible, Easy Function Parameters with Validation.

Numero: Phone number validation for Ruby/Rails