Log validation errors to the database for later inspection.

A collection of assertions for use with minitest and activerecord. Simplifies testing associations and validations by introspecting associations and validations for you models.

Validation groups for ActiveRecord

Embedded documents in Mongoid can be really useful. However, when one of those embedded documents is invalid, Mongoid does not say which validation has failed. Instead of just saying that an embedded document is invalid, this gem modifies Mongoid behavior so it explicitly provides validation erro...

Uses the model validation logic you have already defined to generate javascript validation using jquery

Formtastic extension that does client side form validation

jQuery-Validation-Engine jquery plugin for rails project.

Localize error messages in dm-validations.

Enumify lets you add an enum command to ActiveRecord models There are four things that the enumify gems adds to your model Validation - The enumify adds a validation to make sure that the field only receives accepted values Super Cool Methods - adds ? and ! functions for each...

Form real time validations for free on Rails applications

Form validation for Rails with Dry-Validation

PrettyValidation generate validation modules from database schema

Easily track all the validation errors on your database so that you can analyse them.

Social Security Number (SSN) Validation

RELAX NG schema validation using Jing, a Java based RELAX NG validator that emits clear, detailed validation errors. ruby-jing validates XML documents by wrapping Jing's java command-line user interface.

ActiveValidators is a collection of ActiveModel/ActiveRecord validations

Realtime remote form input validations delivered via websockets

Adds active-record validations to a json format (to_arson) so that validations can be performed client side.

Perform validation on your node's attributes from a Cookbook's attribute metadata definitions.

A credit card validation library to check offline validity of any AMEX, Discover, MasterCard, Visa cards using length and Luhn algorithm.