lib/pear/HTML/QuickForm/Rule/Required.php

   1 <?php
   2 /* vim: set expandtab tabstop=4 shiftwidth=4: */
   3 // +----------------------------------------------------------------------+
   4 // | PHP version 4.0                                                      |
   5 // +----------------------------------------------------------------------+
   6 // | Copyright (c) 1997-2003 The PHP Group                                |
   7 // +----------------------------------------------------------------------+
   8 // | This source file is subject to version 2.0 of the PHP license,       |
   9 // | that is bundled with this package in the file LICENSE, and is        |
  10 // | available at through the world-wide-web at                           |
  11 // | http://www.php.net/license/2_02.txt.                                 |
  12 // | If you did not receive a copy of the PHP license and are unable to   |
  13 // | obtain it through the world-wide-web, please send a note to          |
  14 // | license@php.net so we can mail you a copy immediately.               |
  15 // +----------------------------------------------------------------------+
  16 // | Authors: Bertrand Mansion <bmansion@mamasam.com>                     |
  17 // +----------------------------------------------------------------------+
  18 //
  19 // $Id$
  20
  21 require_once('HTML/QuickForm/Rule.php');
  22
  23 /**
  24 * Required elements validation
  25 * @version     1.0
  26 */
  27 class HTML_QuickForm_Rule_Required extends HTML_QuickForm_Rule
  28 {
  29     /**
  30      * Checks if an element is empty
  31      *
  32      * @param     string    $value      Value to check
  33      * @param     mixed     $options    Not used yet
  34      * @access    public
  35      * @return    boolean   true if value is not empty
  36      */
  37     function validate($value, $options = null)
  38     {
  39         if ((string)$value == '') {
  40             return false;
  41         }
  42         return true;
  43     } // end func validate
  44
  45
  46     function getValidationScript($options = null)
  47     {
  48         return array('', "{jsVar} == ''");
  49     } // end func getValidationScript
  50
  51 } // end class HTML_QuickForm_Rule_Required
  52 ?>