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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Feed\Writer\Extension\DublinCore\Renderer;
use DOMDocument;
use DOMElement;
use Zend\Feed\Writer\Extension;
/**
*/
class Feed extends Extension\AbstractRenderer
{
/**
* Set to TRUE if a rendering method actually renders something. This
* is used to prevent premature appending of a XML namespace declaration
* until an element which requires it is actually appended.
*
* @var bool
*/
protected $called = false;
/**
* Render feed
*
* @return void
*/
public function render()
{
if (strtolower($this->getType()) == 'atom') {
return;
}
$this->_setAuthors($this->dom, $this->base);
if ($this->called) {
$this->_appendNamespaces();
}
}
/**
* Append namespaces to feed element
*
* @return void
*/
protected function _appendNamespaces()
{
$this->getRootElement()->setAttribute('xmlns:dc',
'http://purl.org/dc/elements/1.1/');
}
/**
* Set feed authors
*
* @param DOMDocument $dom
* @param DOMElement $root
* @return void
*/
protected function _setAuthors(DOMDocument $dom, DOMElement $root)
{
$authors = $this->getDataContainer()->getAuthors();
if (!$authors || empty($authors)) {
return;
}
foreach ($authors as $data) {
$author = $this->dom->createElement('dc:creator');
if (array_key_exists('name', $data)) {
$text = $dom->createTextNode($data['name']);
$author->appendChild($text);
$root->appendChild($author);
}
}
$this->called = true;
}
}
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