Interesting Plugin for Grails - javascript validation

Anyone who has programmed in Grails realizes the power of the domain-centric design pattern, including validation rules embedded as constraints in the Domain class.

Someone has written a plugin that dynamically generates Apache Commons Validator code on the fly.  It's called the javascript validator plugin and it is enabled in three steps:

Install the plugin:

grails install-plugin javascript-validator

Add to a given form with:

<jv:generateValidation domain="Employee" form="employeeForm">

Set up the form to include validation

<form id="employeeForm" onSubmit="return validateForm(this);" ... >

I'm going to give this a shot. Interesting how simple it could be to add client-side validation without re-architecting your whole code base. This is why Grails rocks!