1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Validate

    17  * @subpackage Sitemap

    18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    19  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    20  * @version    $Id: Priority.php 22668 2010-07-25 14:50:46Z thomas $

    21  */

    22 

    23 /**

    24  * @see Zend_Validate_Abstract

    25  */

    26 require_once 'Zend/Validate/Abstract.php';

    27 

    28 /**

    29  * Validates whether a given value is valid as a sitemap <priority> value

    30  *

    31  * @link       http://www.sitemaps.org/protocol.php Sitemaps XML format

    32  *

    33  * @category   Zend

    34  * @package    Zend_Validate

    35  * @subpackage Sitemap

    36  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    37  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    38  */

    39 class Zend_Validate_Sitemap_Priority extends Zend_Validate_Abstract

    40 {

    41     /**

    42      * Validation key for not valid

    43      *

    44      */

    45     const NOT_VALID = 'sitemapPriorityNotValid';

    46     const INVALID   = 'sitemapPriorityInvalid';

    47 

    48     /**

    49      * Validation failure message template definitions

    50      *

    51      * @var array

    52      */

    53     protected $_messageTemplates = array(

    54         self::NOT_VALID => "'%value%' is no valid sitemap priority",

    55         self::INVALID   => "Invalid type given. Numeric string, integer or float expected",

    56     );

    57 

    58     /**

    59      * Validates if a string is valid as a sitemap priority

    60      *

    61      * @link http://www.sitemaps.org/protocol.php#prioritydef <priority>

    62      *

    63      * @param  string  $value  value to validate

    64      * @return boolean

    65      */

    66     public function isValid($value)

    67     {

    68         if (!is_numeric($value)) {

    69             $this->_error(self::INVALID);

    70             return false;

    71         }

    72 

    73         $this->_setValue($value);

    74         $value = (float) $value;

    75         if ($value < 0 || $value > 1) {

    76             $this->_error(self::NOT_VALID);

    77             return false;

    78         }

    79 

    80         return true;

    81     }

    82 }