Add gids parameter to node/XXX/edit urls - so noderelationships has context

gistfile1.txt

/*
 * Implementation of hook_nodeapi()
 * Add gids parameter to node/XXX/edit urls - so noderelationships has context
 */
function og_country_nodeapi(&$node, $op) {
  if ($op != 'prepare') return;
  
  if (!empty($_REQUEST['gids'])) return;
  
  if (arg(2) == 'edit' && $node->og_groups) {
    unset($_REQUEST['destination']);
    drupal_goto(
      arg(0).'/'.arg(1).'/'.arg(2),
      drupal_query_string_encode(
        array_merge($_GET, array('gids' => $node->og_groups)),
        array_merge(array('q', 'destination', 'pass', 'translation', 'language'), array_keys($_COOKIE))
      )
    );
  }
}