Chris@0: <?php
Chris@0: /**
Chris@0:  * Zend Framework (http://framework.zend.com/)
Chris@0:  *
Chris@0:  * @link      http://github.com/zendframework/zf2 for the canonical source repository
Chris@0:  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
Chris@0:  * @license   http://framework.zend.com/license/new-bsd New BSD License
Chris@0:  */
Chris@0: 
Chris@0: namespace Zend\Feed\Reader\Extension\CreativeCommons;
Chris@0: 
Chris@0: use Zend\Feed\Reader\Extension;
Chris@0: 
Chris@0: class Entry extends Extension\AbstractEntry
Chris@0: {
Chris@0:     /**
Chris@0:      * Get the entry license
Chris@0:      *
Chris@0:      * @param int $index
Chris@0:      * @return string|null
Chris@0:      */
Chris@0:     public function getLicense($index = 0)
Chris@0:     {
Chris@0:         $licenses = $this->getLicenses();
Chris@0: 
Chris@0:         if (isset($licenses[$index])) {
Chris@0:             return $licenses[$index];
Chris@0:         }
Chris@0: 
Chris@0:         return;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get the entry licenses
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public function getLicenses()
Chris@0:     {
Chris@0:         $name = 'licenses';
Chris@0:         if (array_key_exists($name, $this->data)) {
Chris@0:             return $this->data[$name];
Chris@0:         }
Chris@0: 
Chris@0:         $licenses = [];
Chris@0:         $list = $this->xpath->evaluate($this->getXpathPrefix() . '//cc:license');
Chris@0: 
Chris@0:         if ($list->length) {
Chris@0:             foreach ($list as $license) {
Chris@0:                 $licenses[] = $license->nodeValue;
Chris@0:             }
Chris@0: 
Chris@0:             $licenses = array_unique($licenses);
Chris@0:         } else {
Chris@0:             $cc = new Feed();
Chris@0:             $licenses = $cc->getLicenses();
Chris@0:         }
Chris@0: 
Chris@0:         $this->data[$name] = $licenses;
Chris@0: 
Chris@0:         return $this->data[$name];
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Register Creative Commons namespaces
Chris@0:      *
Chris@0:      */
Chris@0:     protected function registerNamespaces()
Chris@0:     {
Chris@0:         $this->xpath->registerNamespace('cc', 'http://backend.userland.com/creativeCommonsRssModule');
Chris@0:     }
Chris@0: }