interface/modules/zend_modules/library/Zend/Feed/Writer/Extension/DublinCore/Renderer/Feed.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Feed\Writer\Extension\DublinCore\Renderer;
  11
  12 use DOMDocument;
  13 use DOMElement;
  14 use Zend\Feed\Writer\Extension;
  15
  16 /**
  17 */
  18 class Feed extends Extension\AbstractRenderer
  19 {
  20
  21     /**
  22      * Set to TRUE if a rendering method actually renders something. This
  23      * is used to prevent premature appending of a XML namespace declaration
  24      * until an element which requires it is actually appended.
  25      *
  26      * @var bool
  27      */
  28     protected $called = false;
  29
  30     /**
  31      * Render feed
  32      *
  33      * @return void
  34      */
  35     public function render()
  36     {
  37         if (strtolower($this->getType()) == 'atom') {
  38             return;
  39         }
  40         $this->_setAuthors($this->dom, $this->base);
  41         if ($this->called) {
  42             $this->_appendNamespaces();
  43         }
  44     }
  45
  46     /**
  47      * Append namespaces to feed element
  48      *
  49      * @return void
  50      */
  51     protected function _appendNamespaces()
  52     {
  53         $this->getRootElement()->setAttribute('xmlns:dc',
  54             'http://purl.org/dc/elements/1.1/');
  55     }
  56
  57     /**
  58      * Set feed authors
  59      *
  60      * @param  DOMDocument $dom
  61      * @param  DOMElement $root
  62      * @return void
  63      */
  64     protected function _setAuthors(DOMDocument $dom, DOMElement $root)
  65     {
  66         $authors = $this->getDataContainer()->getAuthors();
  67         if (!$authors || empty($authors)) {
  68             return;
  69         }
  70         foreach ($authors as $data) {
  71             $author = $this->dom->createElement('dc:creator');
  72             if (array_key_exists('name', $data)) {
  73                 $text = $dom->createTextNode($data['name']);
  74                 $author->appendChild($text);
  75                 $root->appendChild($author);
  76             }
  77         }
  78         $this->called = true;
  79     }
  80 }