This Gem is Used for Validations URLs

Hash validation for 'options'-like methods.

Validations is a library for validating data structures.

Three level validation on email addresses for ActiveRecord.

Validations for european countries VAT numbers

ActiveModel validation for credit card number.

Allow for validation of only some attributes

A collection of various validators for Rails forms

Object validation inspired by RSpec.

Simple DSL for datatype validation for basic data types.Inspired from GRPC DSL. Since ruby is dynamic language, datatype validator helps to reduce runtime errors by validating structure before processing

YAML files loader with validation

Simple validation library with virtus integration

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

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