/**
* xmldb_hotpot_fix_previous_field
*
* @param xxx $dbman
* @param xmldb_table $table
* @param xmldb_field $field (passed by reference)
* @return void, but may update $field->previous
*/
function xmldb_hotpot_fix_previous_field($dbman, $table, &$field)
{
$previous = $field->getPrevious();
if (empty($previous) || $dbman->field_exists($table, $previous)) {
// $previous field exists - do nothing
} else {
// $previous field does not exist, so remove it
$field->setPrevious(null);
}
}
