Determines the current sort criterion.

Parameters

$headers: An array of column headers in the format described in theme_table().

Return value

An associative array describing the criterion, containing the keys:

• "name": The localized title of the table column.
• "sql": The name of the database field to sort on.

File

drupal-7.x/includes/tablesort.inc, line 205

Functions to aid in the creation of sortable tables.

Code

function tablesort_get_order($headers) {
  $order = isset($_GET['order']) ? $_GET['order'] : '';
  foreach ($headers as $header) {
    if (is_array($header)) {
      if (isset($header['data']) && $order == $header['data']) {
        $default = $header;
        break;
      }

      if (empty($default) && isset($header['sort']) && ($header['sort'] == 'asc' || $header['sort'] == 'desc')) {
        $default = $header;
      }
    }
  }

  if (!isset($default)) {
    $default = reset($headers);
    if (!is_array($default)) {
      $default = array('data' => $default);
    }
  }

  $default += array('data' => NULL, 'field' => NULL);
  return array('name' => $default['data'], 'sql' => $default['field']);
}