function media_filter_track_usage in D7 Media 7

Tracks usage of media fids by the media filter.

Parameters

$fid: The media fid.

1 call to media_filter_track_usage()

media_token_to_markup in includes/media.filter.inc

Replace callback to convert a media file tag into HTML markup.

File

includes/media.filter.inc, line 695

Functions related to the WYSIWYG editor and the media input filter.

Code

function media_filter_track_usage($fid) {

  // This function only tracks when fids are found by the media filter.
  // It would be impractical to check when formatted text is edited to remove
  // references to fids, however by keeping a timestamp, we can implement
  // rudimentary garbage collection in hook_flush_caches().
  // However we only need to track that an fid has ever been referenced,
  // not every time, so avoid updating this table more than once per month,
  // per fid.
  $timestamp = db_query('SELECT timestamp FROM {media_filter_usage} WHERE fid = :fid', array(
    ':fid' => $fid,
  ))
    ->fetchField();
  if (!$timestamp || $timestamp <= REQUEST_TIME - 86400 * 30) {
    db_merge('media_filter_usage')
      ->key(array(
      'fid' => $fid,
    ))
      ->fields(array(
      'fid' => $fid,
      'timestamp' => REQUEST_TIME,
    ))
      ->execute();
  }
}