public static function getAllContractsSIDsByUserSID($user_sid)
{
if ($user_sid == 0) {
return false;
}
$contractsInfo = SJB_ContractSQL::selectInfoByUserSID($user_sid);
$result = array();
foreach ($contractsInfo as $contractInfo) {
$result[] = $contractInfo['id'];
}
return $result;
}