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0001 <?php
0002 /**
0003  * Zend Framework
0004  *
0005  * LICENSE
0006  *
0007  * This source file is subject to the new BSD license that is bundled
0008  * with this package in the file LICENSE.txt.
0009  * It is also available through the world-wide-web at this URL:
0010  * http://framework.zend.com/license/new-bsd
0011  * If you did not receive a copy of the license and are unable to
0012  * obtain it through the world-wide-web, please send an email
0013  * to license@zend.com so we can send you a copy immediately.
0014  *
0015  * @category   Zend
0016  * @package    Zend_Validate
0017  * @subpackage Sitemap
0018  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0019  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0020  * @version    $Id$
0021  */
0022 
0023 /**
0024  * @see Zend_Validate_Abstract
0025  */
0026 // require_once 'Zend/Validate/Abstract.php';
0027 
0028 /**
0029  * Validates whether a given value is valid as a sitemap <priority> value
0030  *
0031  * @link       http://www.sitemaps.org/protocol.php Sitemaps XML format
0032  *
0033  * @category   Zend
0034  * @package    Zend_Validate
0035  * @subpackage Sitemap
0036  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0037  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0038  */
0039 class Zend_Validate_Sitemap_Priority extends Zend_Validate_Abstract
0040 {
0041     /**
0042      * Validation key for not valid
0043      *
0044      */
0045     const NOT_VALID = 'sitemapPriorityNotValid';
0046     const INVALID   = 'sitemapPriorityInvalid';
0047 
0048     /**
0049      * Validation failure message template definitions
0050      *
0051      * @var array
0052      */
0053     protected $_messageTemplates = array(
0054         self::NOT_VALID => "'%value%' is not a valid sitemap priority",
0055         self::INVALID   => "Invalid type given. Numeric string, integer or float expected",
0056     );
0057 
0058     /**
0059      * Validates if a string is valid as a sitemap priority
0060      *
0061      * @link http://www.sitemaps.org/protocol.php#prioritydef <priority>
0062      *
0063      * @param  string  $value  value to validate
0064      * @return boolean
0065      */
0066     public function isValid($value)
0067     {
0068         if (!is_numeric($value)) {
0069             $this->_error(self::INVALID);
0070             return false;
0071         }
0072 
0073         $this->_setValue($value);
0074         $value = (float) $value;
0075         if ($value < 0 || $value > 1) {
0076             $this->_error(self::NOT_VALID);
0077             return false;
0078         }
0079 
0080         return true;
0081     }
0082 }