Delegates validation between objects

A notifier for form validation errors.

Find and report ActiveRecord validation errors.

validation_examples_matcher provides rspec matcher testing validations with examples.

Use reflection to spec ActiveModel validations

A Validation framework for creating validation profiles, allowing for the separation & reuse of validation logic from the object being validated.

ActiveModel Interface for validation_reflection

A collection of common validation rules

A collection of delicious Rails validators

Checks whether an ActiveModel Validator is attached to an attribute of a Model and with which options

extension for active_record

Validação de inscrição estadual dos 26 estados federativos

Allow validate uniqueness across multiple column

ruby client library for the validator.nu HTML5 validation API

An implementation of several error checking algorithms,including Luhn and Damm.

ActiveModel validation for credit card number.

As your Rails projects evolve and grow, your model validations tend to change as well. An unfortunate side effect of this evolution is that your table- backed ActiveRecord::Base descendants end up with rows that instantiate invalid model instances. ValidData generates a report for your Rails appl...

Your favourite validations with Ruby

Validatable configurations

The beginning of a validation library