protected function perform_update_patches($browser = true)
{
$this->turn_on_maintenance_mode();
$patches = PatchUtil::apply_new(true);
if ($browser) {
$success = PatchUtil::all_successful($patches);
if (!$success) {
$msg = self::format_patches_msg($patches);
$this->body($msg);
}
return $success;
}
}