Allows easy determination of which validation rules apply to a given column, at the expense of increased verbosity

Use database validations and convert ActiveRecord::StatementInvalid into ActiveRecord::RecordInvalid

Extension for default Rails validations. Adds some useful methods.

A parser which converts dry-validation contract schema into a readable hash for further manipulation

jQuery Form Validator is a feature rich jQuery plugin that makes it easy to validate user input while keeping your HTML markup clean from javascript code. Even though this plugin has a wide range of validation functions it's designed to require as little jQuery bandwidth as possible. This is ac...

Client Side Validations for Rails 4

Add controller time validation for media types

Ajax validation

Ruby Gem to make a validation of a variable or a hash, based on regular expressions or own pre-defined validation templates in an easy way. See full documentation on GitHub.

Ruby Library for the numverify API, Global Phone Number Validation & Lookup, https://numverify.com/

Provides I18n support for validation error messages in ActiveModel. With Rails 3 ActiveModel validation error messages are not backwards compatible with ActiveRecord 2.3.x. This Gem aims to restore this backwards compatiblity and ...

Extract validations from your database information

Email validation with sensible defaults so you can go care about more important things. * Strives to be trivially easy to choose and use * Meant to match HTML5 email validation, happily deviates from RFC 5322 * Email tags with '+' are allowed * Two consecutive dots ('..') are not * Cares very l...

This is a DataMapper plugin that provides validations for DataMapper model classes.

A simple set of validations I got tired of writing over and over and over again.

Provides really basic postcode validation (intended for eCommerce platforms).

ActiveRecord uniqueness validations without raceconditions

An ActiveModel extension for more expressive validations reflection

Simple validation of params with a concern

MobilityUniqueness extends the Mobility gem with locale-specific uniqueness validation for translated attributes in ActiveRecord models. It allows you to ensure that a given attribute, such as `name` in different locales, is unique within the specified locale. By using this va...