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_Paginator

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

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

    19  * @version    $Id: Iterator.php 20096 2010-01-06 02:05:09Z bkarwin $

    20  */

    21 

    22 /**

    23  * @see Zend_Paginator_Adapter_Interface

    24  */

    25 require_once 'Zend/Paginator/Adapter/Interface.php';

    26 

    27 /**

    28  * @see Zend_Paginator_SerializableLimitIterator

    29  */

    30 require_once 'Zend/Paginator/SerializableLimitIterator.php';

    31 

    32 /**

    33  * @category   Zend

    34  * @package    Zend_Paginator

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

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

    37  */

    38 class Zend_Paginator_Adapter_Iterator implements Zend_Paginator_Adapter_Interface

    39 {

    40     /**

    41      * Iterator which implements Countable

    42      *

    43      * @var Iterator

    44      */

    45     protected $_iterator = null;

    46 

    47     /**

    48      * Item count

    49      *

    50      * @var integer

    51      */

    52     protected $_count = null;

    53 

    54     /**

    55      * Constructor.

    56      *

    57      * @param  Iterator $iterator Iterator to paginate

    58      * @throws Zend_Paginator_Exception

    59      */

    60     public function __construct(Iterator $iterator)

    61     {

    62         if (!$iterator instanceof Countable) {

    63             /**

    64              * @see Zend_Paginator_Exception

    65              */

    66             require_once 'Zend/Paginator/Exception.php';

    67 

    68             throw new Zend_Paginator_Exception('Iterator must implement Countable');

    69         }

    70 

    71         $this->_iterator = $iterator;

    72         $this->_count = count($iterator);

    73     }

    74 

    75     /**

    76      * Returns an iterator of items for a page, or an empty array.

    77      *

    78      * @param  integer $offset Page offset

    79      * @param  integer $itemCountPerPage Number of items per page

    80      * @return LimitIterator|array

    81      */

    82     public function getItems($offset, $itemCountPerPage)

    83     {

    84         if ($this->_count == 0) {

    85             return array();

    86         }

    87 

    88         // @link http://bugs.php.net/bug.php?id=49906 | ZF-8084

    89         // return new LimitIterator($this->_iterator, $offset, $itemCountPerPage);

    90         return new Zend_Paginator_SerializableLimitIterator($this->_iterator, $offset, $itemCountPerPage);

    91     }

    92 

    93     /**

    94      * Returns the total number of rows in the collection.

    95      *

    96      * @return integer

    97      */

    98     public function count()

    99     {

   100         return $this->_count;

   101     }

   102 }