function _oembed_field_extract_urls in oEmbed 8

Same name and namespace in other branches

1. 7 oembed.filter.inc \_oembed_field_extract_urls()
2. 7.0 oembed.filter.inc \_oembed_field_extract_urls()

Extract all URLs for oEmbed to process.

Returns an array of URLs grouped by field, delta, and column.

1 call to _oembed_field_extract_urls()

oembed_field_attach_validate in ./oembed.filter.inc

Implements hook_field_attach_validate().

File

./oembed.filter.inc, line 50

Input filter that enhances oEmbed enabled URLs with extra content

Code

function _oembed_field_extract_urls($entity_type, $entity) {
  $urls = array();

  // Determine if any formats use oEmbed filter.
  $filter_settings = array();
  foreach (filter_formats() as $format) {
    $filters = filter_list_format($format->format);
    if (isset($filters['oembed']) && $filters['oembed']->status) {
      $filter_settings[$format->format] = $filters['oembed']->settings;
    }
  }
  if (!empty($filter_settings)) {
    list(, , $bundle) = entity_extract_ids($entity_type, $entity);
    $instances = field_info_instances($entity_type, $bundle);
    foreach ($instances as $info) {

      // All text fields have a text_processing setting. Only search text fields with
      // text processing enabled.
      if (isset($info['settings']['text_processing']) && $info['settings']['text_processing']) {
        $items = field_get_items($entity_type, $entity, $info['field_name']);
        if (!$items) {
          continue;
        }
        foreach ($items as $delta => $item) {
          if (isset($filter_settings[$item['format']])) {

            // URLs may be contained within the other column values.
            foreach (array(
              'value',
              'summary',
            ) as $column) {
              if (!empty($item[$column])) {
                $text = $item[$column];

                // copied from oembed_filter_oembed_prepare().
                if ($filter_settings[$item['format']]['autoembed']) {
                  $text = preg_replace_callback(OEMBED_PATTERN_AUTOEMBED, 'oembed_preg_auto_replace', $text);
                }

                // copied from oembed_filter_oembed_process().
                $matches = array();
                preg_match_all(OEMBED_PATTERN_EMBED_SHORTCODE, $text, $matches);
                $urls[$info['field_name']][$delta][$column] = array_filter($matches[3], '_oembed_field_filter_urls');
              }
            }
          }
        }
      }
    }
  }
  return $urls;
}