gistfile1.php

## the Controller

<?php
class FormfieldsController extends AppController {
    public $helpers = array('Html', 'Form', 'Formfield');
    public $components = array('RequestHandler');

    public function beforeFilter() {
        parent::beforeFilter();
        $this->Security->csrfExpires = '+1 hour';

        if($this->Auth->user('role') === 'admin' || $this->Auth->user('role') === 'user') {
            $this->Auth->allow('*');
        }

        $this->Security->unlockedActions = array('addrow');
    }

    /**
     * handles AJAX requests to save a formrow
     * return JSON
     *
     */
    public function addrow() {
        $result = array();
        if($this->request->is('ajax')) {
            $result['status'] = 'success';
            $result['message'] = __('Row added');
        }

        $this->set('result', $result);
    }
}

## the view part with the AJAX 

            $.ajax({
                'type': 'POST',
                'cache': false,
                'dataType': 'json',
                'url': appUrl+'/formfields/addrow.json',
                'success': function(data) {
                    console.log('success');
                },
                'error': function(jqXHR, textStatus, errorThrown) {

                },
                'complete': function(data) {
                    console.log('complete.');
                }
            });