Validatable is a library for adding validations.

Rack middleware for Weixin apps: message validation/parser/generator

Scrivener removes the validation responsibility from models and acts as a filter for whitelisted attributes.

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

CPF validation for ActiveModel

ActiveRecord extension. Allows to save record without calling callbacks and validations.

CNPJ validation for ActiveModel

Implements the common view pattern by which a list of messages are shown at the top, often a combination of flash messages and ActiveRecord validation issues on one or more models.

Interactors are a pattern for structuring your business logic into units. They have a flexible context that they pass between them, which makes them easy-to-write, but hard-to-understand after you've written them. Much of this confusion comes from not knowing what the interactor is supposed to ta...

Post/zip code formatting and validation for the UK, US, CA and more.

Cloudformation tasks for apply(create/update), delete, recreate on stack along with validations on templates

Plugs directly in the the Google's native C++ [libphonenumber](https://github.com/google/libphonenumber) for extemely _fast_ and _robust_ phone number parsing, validation, and formatting. On average, most methods are 40x t0 50x faster than other Ruby phone number libraries.

Generates modules that provide conventional value semantics for a given set of attributes. The behaviour is similar to an immutable `Struct` class, plus extensible, lightweight validation and coercion.

TLSPretense provides a set of tools to test SSL/TLS certificate validation. It includes a library for generating certificates and a test framework for running tests against a client by intercepting client network traffic."

This plugin gives you the option to not have your custom validation error message prefixed with the attribute name

Validatable is a library for adding validations. Now compatible with Ruby 1.9.2+

Handles application errors and model validations

Provides JSON Schema validation for ElasticGraph.

A Rails plugin that adds an ActiveRecord validation helper to do range and start/end date checking in.

Validatable is a library for adding validations.