<?php

/**
 * Project:     SmartyValidate: Form Validator for the Smarty Template Engine
 * File:        validate_transform.makeDate.php
 * Author:      Monte Ohrt <monte at newdigitalgroup dot com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * @link http://www.phpinsider.com/php/code/SmartyValidate/
 * @copyright 2001-2005 New Digital Group, Inc.
 * @author Monte Ohrt <monte at newdigitalgroup dot com>
 * @package SmartyValidate
 */

 /**
 * transform fuction, make a date out of three other form fields
 *
 * @param string $value the value of the field being transformed
 * @param array  $params the parameters passed to the transform function
 * @param array  $formvars the form variables
 */

function smarty_validate_transform_makeDate($value, $params, &$formvars) {

    if(!empty($params['date_fields'])) {
        list($_year, $_month, $_day) = preg_split('![\s,]+!',$params['date_fields']);
    } elseif(!empty($params['field2']) && !empty($params['field3']) && !empty($params['field4'])) {
        $_year = $params['field2'];
        $_month = $params['field3'];
        $_day = $params['field4'];
    } else {
        $_year = $params['field'] . 'Year';
        $_month = $params['field'] . 'Month';
        $_day = $params['field'] . 'Day';
    }

    if(!isset($formvars[$_year]) || strlen($formvars[$_year]) == 0) {
        trigger_error("SmartyValidate: [makeDate] form field '$_year' is empty.");
        return $value;
    } elseif(!isset($formvars[$_month]) || strlen($formvars[$_month]) == 0) {
        trigger_error("SmartyValidate: [makeDate] form field '$_month' is empty.");
        return $value;
    } elseif(!isset($formvars[$_day]) || strlen($formvars[$_day]) == 0) {
        trigger_error("SmartyValidate: [makeDate] form field '$_day' is empty.");
        return $value;
    } else {
        return $formvars[$_year] . '-' . $formvars[$_month] . '-' . $formvars[$_day];
    }           
}

?>