<?php
class users_model extends app_model
{
    public $validates = array(
		'email' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.'),
			'valid'			=> array(VALID_EMAIL, 'Valid e-mail address required.')
			),
		'firstname' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.')
			),
		'lastname' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.')
			),
		'address' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.')
			),
		'city' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.')
			),
		'state' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'State is Required.'),
			'valid_state'	=> array('valid_state', 'Please choose a state from the drop-down box.')
			),
		'zip' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Zip is Required.')
			),
		/*'homephone' => array(
			'required'		=> array(VALID_NOT_EMPTY, 'Field Required.')
			),*/
		'toc_agree' => array(
			'required'		=> array('#^1$#', 'You must agree to the terms and conditions.')
			)
	);

	protected function valid_state($state)
	{
		$State_Model = new State_Model;
		$state = $State_Model->find('abbreviation', array('abbreviation' => $state));

		if (is_array($state) && count($state))
		{
			return true;
		}

		return false;
	}
}



#### On the controller side
$user = new user_model;

if($this->post)
{
     if($user->validate($this->post))
     {
         if($user->save($this->post))
         {
             die("user valid and saved");
         }
         else
         {
            die("save failed");
         }
     }
}