Feed.php in Zircon Profile 8

Namespace

Zend\Feed\Reader\Extension\DublinCore

File

vendor/zendframework/zend-feed/src/Reader/Extension/DublinCore/Feed.php

<?php

/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */
namespace Zend\Feed\Reader\Extension\DublinCore;

use DateTime;
use Zend\Feed\Reader;
use Zend\Feed\Reader\Collection;
use Zend\Feed\Reader\Extension;
class Feed extends Extension\AbstractFeed {

  /**
   * Get a single author
   *
   * @param  int $index
   * @return string|null
   */
  public function getAuthor($index = 0) {
    $authors = $this
      ->getAuthors();
    if (isset($authors[$index])) {
      return $authors[$index];
    }
    return;
  }

  /**
   * Get an array with feed authors
   *
   * @return array
   */
  public function getAuthors() {
    if (array_key_exists('authors', $this->data)) {
      return $this->data['authors'];
    }
    $authors = [];
    $list = $this
      ->getXpath()
      ->query('//dc11:creator');
    if (!$list->length) {
      $list = $this
        ->getXpath()
        ->query('//dc10:creator');
    }
    if (!$list->length) {
      $list = $this
        ->getXpath()
        ->query('//dc11:publisher');
      if (!$list->length) {
        $list = $this
          ->getXpath()
          ->query('//dc10:publisher');
      }
    }
    if ($list->length) {
      foreach ($list as $author) {
        $authors[] = [
          'name' => $author->nodeValue,
        ];
      }
      $authors = new Collection\Author(Reader\Reader::arrayUnique($authors));
    }
    else {
      $authors = null;
    }
    $this->data['authors'] = $authors;
    return $this->data['authors'];
  }

  /**
   * Get the copyright entry
   *
   * @return string|null
   */
  public function getCopyright() {
    if (array_key_exists('copyright', $this->data)) {
      return $this->data['copyright'];
    }
    $copyright = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:rights)');
    if (!$copyright) {
      $copyright = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:rights)');
    }
    if (!$copyright) {
      $copyright = null;
    }
    $this->data['copyright'] = $copyright;
    return $this->data['copyright'];
  }

  /**
   * Get the feed description
   *
   * @return string|null
   */
  public function getDescription() {
    if (array_key_exists('description', $this->data)) {
      return $this->data['description'];
    }
    $description = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:description)');
    if (!$description) {
      $description = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:description)');
    }
    if (!$description) {
      $description = null;
    }
    $this->data['description'] = $description;
    return $this->data['description'];
  }

  /**
   * Get the feed ID
   *
   * @return string|null
   */
  public function getId() {
    if (array_key_exists('id', $this->data)) {
      return $this->data['id'];
    }
    $id = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:identifier)');
    if (!$id) {
      $id = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:identifier)');
    }
    $this->data['id'] = $id;
    return $this->data['id'];
  }

  /**
   * Get the feed language
   *
   * @return string|null
   */
  public function getLanguage() {
    if (array_key_exists('language', $this->data)) {
      return $this->data['language'];
    }
    $language = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:language)');
    if (!$language) {
      $language = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:language)');
    }
    if (!$language) {
      $language = null;
    }
    $this->data['language'] = $language;
    return $this->data['language'];
  }

  /**
   * Get the feed title
   *
   * @return string|null
   */
  public function getTitle() {
    if (array_key_exists('title', $this->data)) {
      return $this->data['title'];
    }
    $title = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:title)');
    if (!$title) {
      $title = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:title)');
    }
    if (!$title) {
      $title = null;
    }
    $this->data['title'] = $title;
    return $this->data['title'];
  }

  /**
   *
   *
   * @return DateTime|null
   */
  public function getDate() {
    if (array_key_exists('date', $this->data)) {
      return $this->data['date'];
    }
    $d = null;
    $date = $this
      ->getXpath()
      ->evaluate('string(' . $this
      ->getXpathPrefix() . '/dc11:date)');
    if (!$date) {
      $date = $this
        ->getXpath()
        ->evaluate('string(' . $this
        ->getXpathPrefix() . '/dc10:date)');
    }
    if ($date) {
      $d = new DateTime($date);
    }
    $this->data['date'] = $d;
    return $this->data['date'];
  }

  /**
   * Get categories (subjects under DC)
   *
   * @return Collection\Category
   */
  public function getCategories() {
    if (array_key_exists('categories', $this->data)) {
      return $this->data['categories'];
    }
    $list = $this
      ->getXpath()
      ->evaluate($this
      ->getXpathPrefix() . '//dc11:subject');
    if (!$list->length) {
      $list = $this
        ->getXpath()
        ->evaluate($this
        ->getXpathPrefix() . '//dc10:subject');
    }
    if ($list->length) {
      $categoryCollection = new Collection\Category();
      foreach ($list as $category) {
        $categoryCollection[] = [
          'term' => $category->nodeValue,
          'scheme' => null,
          'label' => $category->nodeValue,
        ];
      }
    }
    else {
      $categoryCollection = new Collection\Category();
    }
    $this->data['categories'] = $categoryCollection;
    return $this->data['categories'];
  }

  /**
   * Register the default namespaces for the current feed format
   *
   * @return void
   */
  protected function registerNamespaces() {
    $this
      ->getXpath()
      ->registerNamespace('dc10', 'http://purl.org/dc/elements/1.0/');
    $this
      ->getXpath()
      ->registerNamespace('dc11', 'http://purl.org/dc/elements/1.1/');
  }

}

Classes

Name	Description
Feed