Simple validation library with virtus integration

NIS validation for ActiveModel

Some extra sensible validations

A very simple wrapper for the PostCodeAnywhere Bank Account Validation API.

Provides an easy way to add model-based validations to excel files.

Auto generating ActiveModel validations for hashes

Language Independent Validation Rules. Implements 2.0 specification

adds a uniqueness validator for globalize3 translated models

A Guilded (http://github.com/midas/guilded/tree/master) component that will reflect ActiveRecord validations and use them to live validate forms.

Little gem that take advantage of Roo gem and Rails ActiveModel validation methods to read and validate the content of a spreadsheet

IbanValidation provides a simple ActiveModel::EachValidator for formally validating International Bank Account Numbers (IBAN). It is based on the IBANTools gem.

This gem is used for the email validation and basic string operation like left padding, right padding, center padding, to uppercase, to lower case and to capitalize

This gem provides immutability validation. This is different from `readonly: true` stuff because it sets the error.

rack-oidc-api provides a JWT validation middleware which automatically discovers the settings supported by a given OIDC provider, and validates the token against the published keys.

Use the ActiveRecord mimicking API to write into CM and enjoy all the benefits of callbacks, validations and permission checking

PIC is a pattern matching library, like regular expressions, based on Cobol edited pictures. It's advantage over regular expressions is it more concise syntax which geared specifically toward validation of user input.

iTunes In-App Purchase and Subscription Receipt Analysis and Validation

Plugin allowing to auto build and validate associated records and merge validation errors

This library is a wrapper for the Konto API (https://www.kontoapi.de/). It provides a validation method for models that checks if a given account number and bank code represent a valid combination.

A Ruby Gem For Chinese Mainland Personal ID Card Validation