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Shameer Chamal's Blog: Tutorial : Simple ajax validation for Kohana

Note: This article was originally published at PHPDeveloper on 25 May 2011.
PHPDeveloper

Shameer Chamal has a quick tutorial posted to his blog today showing how you can create a basic ajax validation feature for your Kohana-based web application.

If you are new to Kohana framework, implementing validation will be an adventure, especially if you are looking for ajax validation. In this article I will present a simple way to implement some necessary validations using ajax in a sign up form.

He starts with a simple view containing the login form and including a few extra files (like the Javascript helper for the validation). Next he creates the user model that will do the backend check to see if the user already exists. Finally the controller and Javascript are created to bring all the pieces together. The Javascript uses the jQuery framework to make things a bit more convenient and runs a check against the backend for the given username with the response returned as a JSON message.