function emfield_nodeapi in Embedded Media Field 5

Same name and namespace in other branches

1. 6.3 deprecated/emfield-deprecated.inc \emfield_nodeapi()
2. 6 emfield.module \emfield_nodeapi()
3. 6.2 emfield.module \emfield_nodeapi()

Implementation of hook_nodeapi().

File

./emfield.module, line 570

Code

function emfield_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  switch ($op) {
    case 'rss item':
      $files = array();
      $type = content_types($node->type);
      foreach ($type['fields'] as $field) {
        if (module_hook($field['type'], 'emfield_info')) {
          $items = (array) $node->{$field['field_name']};
          $rss_encl = module_invoke($field['type'], 'emfield_rss', $node, $items, $teaser);

          // about here let extras change the data
          // allow modules (such as emthumb, or a future emmetadata) to alter our data.
          foreach (module_implements('emfield_field_extra') as $module) {
            $args = array(
              $op,
              &$node,
              $field,
              &$items,
              $teaser,
              $page,
              $module,
            );
            $ret = call_user_func_array($module . '_emfield_field_extra', $args);
            if (is_array($rss_encl) && is_array($ret)) {
              while (list($delta, ) = each($rss_encl)) {
                if (is_array($ret[$delta]) && is_array($rss_encl[$delta])) {
                  $rss_encl[$delta] = $ret[$delta] + $rss_encl[$delta];
                }
              }
            }
          }
          if (is_array($rss_encl)) {

            // by now the delta doesn't matter we have enough data in the individual arrays
            $files = array_merge($files, $rss_encl);
          }
        }
      }
      $enclosure = array();
      $rss = array();
      foreach ($files as $file) {

        // RRS2 enclosure http://cyber.law.harvard.edu/rss/rss.html#ltenclosuregtSubelementOfLtitemgt
        if (count($enclosure) < 1 && isset($file['filepath']) && isset($file['filesize']) && isset($file['filemime']) && $file['filepath'] != '' && $file['filesize'] > 0 && $file['filemime'] != '') {
          $enclosure = array(
            'key' => 'enclosure',
            'attributes' => array(
              'url' => check_url($file['filepath']),
              'length' => (int) $file['filesize'],
              'type' => check_plain($file['filemime']),
            ),
          );
        }

        // MRSS media:content http://search.yahoo.com/mrss
        $media = array();
        if (isset($file['filepath']) && $file['filepath'] != '') {

          // actually optional if media:player were to be specified
          $media['url'] = check_url($file['filepath']);

          // the rest of these are optional
          if (isset($file['filesize']) && $file['filesize'] > 1) {
            $media['fileSize'] = (int) $file['filesize'];
          }
          if ($file['filemime']) {
            $media['type'] = check_plain($file['filemime']);
          }
          if (isset($file['medium']) && $file['medium'] != '') {
            $media['medium'] = check_plain($file['medium']);
          }

          // media:isDefault, may be good for multiple CCK fields - ignored for now
          if (isset($file['expression']) && $file['expression'] != '') {
            $media['expression'] = check_plain($file['expression']);
          }
          if (isset($file['bitrate']) && $file['bitrate'] > 0) {
            $media['bitrate'] = (int) $file['bitrate'];
          }
          if (isset($file['framerate']) && $file['framerate'] > 0) {
            $media['framerate'] = (int) $file['framerate'];
          }
          if (isset($file['sampling_rate']) && $file['sampling_rate'] > 0) {
            $media['samplingrate'] = (int) $file['sampling_rate'];
          }
          if (isset($file['channels']) && $file['channels'] > 0) {
            $media['channels'] = check_plain($file['channels']);
          }
          if (isset($file['duration']) && $file['duration'] > 0) {
            $media['duration'] = (int) $file['duration'];
          }
          if (isset($file['width']) && isset($file['height']) && $file['width'] > 0 && $file['height'] > 0) {
            $media['width'] = (int) $file['width'];
            $media['height'] = (int) $file['height'];
          }

          // media:lang will be interesting
          $mrss_thumbnail = array();
          if (is_array($file['thumbnail']) && $file['thumbnail']['filepath'] != '') {
            $thumbnail = array();
            $thumbnail['url'] = check_url($file['thumbnail']['filepath']);
            if (isset($file['thumbnail']['height']) && $file['thumbnail']['height'] > 0) {
              $thumbnail['height'] = (int) $file['thumbnail']['height'];
            }
            if (isset($file['thumbnail']['width']) && $file['thumbnail']['width'] > 0) {
              $thumbnail['width'] = (int) $file['thumbnail']['width'];
            }
            if (isset($file['thumbnail']['time']) && $file['thumbnail']['time'] > 0) {
              $thumbnail['time'] = (int) $file['thumbnail']['time'];
            }
            $mrss_thumbnail = array(
              'key' => 'media:thumbnail',
              'attributes' => $thumbnail,
            );
          }
          $rss[] = array(
            'key' => 'media:content',
            'attributes' => $media,
            'value' => array(
              $mrss_thumbnail,
            ),
          );
        }
      }

      // work around for http://drupal.org/node/157709
      static $been_here = FALSE;
      if (!$been_here) {
        $rss[] = array(
          'namespace' => array(
            'xmlns:media="http://search.yahoo.com/mrss/"',
          ),
        );
        $been_here = TRUE;
      }
      $rss[] = $enclosure;
      return $rss;
  }
}