library/feed/renderer/Angie_Feed_Renderer_RSS2.class.php

   1 <?php
   2
   3   /**
   4   * RSS 2.0 feed renderer
   5   *
   6   * This renderer will use input feed object to render valid RSS 2.0 feed
   7   *
   8   * @package Angie.toys
   9   * @subpackage feed.renderers
  10   * @http://www.projectpier.org/
  11   */
  12   class Angie_Feed_Renderer_RSS2 extends Angie_Feed_Renderer {
  13
  14     /**
  15     * Render feed
  16     *
  17     * Render RSS 2.0 feed (spec: http://blogs.law.harvard.edu/tech/rss)
  18     *
  19     * @param Angie_Feed $feed
  20     * @return string
  21     */
  22     function render(Angie_Feed $feed) {
  23       $result  = "<rss version=\"2.0\">\n<channel>\n";
  24       $result .= '<title>' . clean($feed->getTitle()) . "</title>\n";
  25       $result .= '<link>' . clean($feed->getLink()) . "</link>\n";
  26       if($description = trim($feed->getDescription())) {
  27         $result .= '<description>' . clean($description) . "</description>\n";
  28       } // if
  29       if($language = trim($feed->getLanguage())) {
  30         $result .= '<language>' . clean($language) . "</language>\n";
  31       } // if
  32
  33       foreach($feed->getItems() as $feed_item) {
  34         $result .= $this->renderItem($feed_item) . "\n";
  35       } // foreach
  36
  37       $result .= "</channel>\n</rss>";
  38       return $result;
  39     } // render
  40
  41     /**
  42     * Render single feed item
  43     *
  44     * @param Angie_Feed_Item $item
  45     * @return string
  46     */
  47     private function renderItem(Angie_Feed_Item $item) {
  48       $result  = "<item>\n";
  49       $result .= '<title>' . clean($item->getTitle()) . "</title>\n";
  50       $result .= '<link>' . clean($item->getLink()) . "</link>\n";
  51       if($description = trim($item->getDescription())) {
  52         $result .= '<description>' . clean($description) . "</description>\n";
  53       } // if
  54
  55       $author = $item->getAuthor();
  56       if($author instanceof Angie_Feed_Author) {
  57         $result .= '<author>' . clean($author->getEmail()) . ' (' . clean($author->getName()) . ")</author>\n";
  58       } // if
  59
  60       $pubdate = $item->getPublicationDate();
  61       if($pubdate instanceof DateTimeValue) {
  62         $result .= '<pubdate>' . $pubdate->toRSS() . "</pubdate>\n";
  63       } // if
  64
  65       $result .= '</item>';
  66       return $result;
  67     } // renderItem
  68
  69   } // Angie_Feed_Renderer_RSS2
  70
  71 ?>