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   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  ?>