<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | PHP version 4.0                                                      |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license,       |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/2_02.txt.                                 |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to          |
// | license@php.net so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Bertrand Mansion <bmansion@mamasam.com>                     |
// +----------------------------------------------------------------------+
//
// $Id: Required.php,v 1.2 2010/12/14 17:35:59 moodlerobot Exp $

require_once('HTML/QuickForm/Rule.php');

/**
* Required elements validation
* @version     1.0
*/
class HTML_QuickForm_Rule_Required extends HTML_QuickForm_Rule
{
    /**
     * Checks if an element is empty
     *
     * @param     string    $value      Value to check
     * @param     mixed     $options    Not used yet
     * @access    public
     * @return    boolean   true if value is not empty
     */
    function validate($value, $options = null)
    {
        if ((string)$value == '') {
            return false;
        }
        return true;
    } // end func validate


    function getValidationScript($options = null)
    {
        return array('', "{jsVar} == ''");
    } // end func getValidationScript

} // end class HTML_QuickForm_Rule_Required
?>
