public static function updateInv($sku, $invPeopleId, $storeId = 1)
 {
     self::initDB();
     $time = time();
     $sql = "select actualStock from wh_sku_location where sku='{$sku}' and storeId={$storeId} ";
     $sku_location = self::$dbConn->fetch_first($sql);
     if (empty($sku_location)) {
         $invNums = 0;
     } else {
         $invNums = $sku_location['actualStock'];
     }
     $update_sql = "update wh_waitforInventory_list set invStatus=1,invNums={$invNums},invPeopleId={$invPeopleId},invTime={$time} \n\t\t\t\t\t\t  where sku='{$sku}' and invStatus=0 and storeId={$storeId}";
     $query = self::$dbConn->query($update_sql);
     if ($query) {
         return true;
     } else {
         self::$errCode = "003";
         self::$errMsg = "error";
         return false;
     }
 }