<?
require("lib.php");
//auth();

$pid = intval($pid);
$quantity = intval($quantity);

if($quantity <= 0)	$quantity = 1;
if($pid > 0){
	$columnid	= intval(floor($pid / 1000000));
	$tpid		= $pid % 1000000;
	
	if(empty($array_column["$columnid"]))	die("该频道不存在");
	
	
	$columnname	= $array_column["$columnid"][0];
	$columnename	= $array_column["$columnid"][1];
	$tableproduct	= $array_column["$columnid"][2];
	$tabletype	= $array_column["$columnid"][3];
	
	$qry_string = "SELECT * FROM $tableproduct WHERE pid=$tpid";
	$result = $db_query($qry_string, $mySQL_ID) or mysql_die();
	if($db_num_rows($result) == 0)	die("该产品不存在");
	$row = $db_fetch_array($result);
	
	if($row['status'] & 0x80)	die("该产品暂时缺货");
	if($row['storage'] <= 0)	die("该产品暂时缺货");
	
	/*
	$qry_string = "SELECT * FROM cart WHERE userid=$ss_userid AND pid=$pid";
	$result = $db_query($qry_string, $mySQL_ID) or mysql_die();
	if($db_num_rows($result) == 0){
		$qry_string = "INSERT INTO cart (userid,pid,quantity,adddate) VALUES ($ss_userid,$pid,$quantity,$NOW)";
	}
	else{
		$qry_string = "UPDATE cart SET adddate=$NOW WHERE userid=$ss_userid AND pid=$pid";
	}
	$db_query($qry_string, $mySQL_ID) or mysql_die();
	*/
	$found = false;
	for($i=0;$i<count($ss_cart);$i++){
		if($pid == $ss_cart[$i][0]){
			$ss_cart[$i][1] += $quantity;
			$found = true;
			break;
		}
	}
	if(!$found){
		for($i=0;$i<count($ss_cart);$i++){
			if($ss_cart[$i][0] == 0){
				$ss_cart[$i][0] = $pid;
				$ss_cart[$i][1] = $quantity;
				$found = true;
				break;
			}
		}
		if(!$found){
			$new_index = count($ss_cart);
			$ss_cart[$new_index][0] = $pid;
			$ss_cart[$new_index][1] = $quantity;
		}
	}
	
	//建立频道与客户联系
	$qry_string = "SELECT * FROM column_user WHERE columnid=$columnid AND userid=$ss_userid";
	$result = $db_query($qry_string, $mySQL_ID) or mysql_die();
	if($db_num_rows($result) == 0){
		$qry_string = "INSERT INTO column_user (userid,columnid) VALUES ($ss_userid,$columnid)";
		$db_query($qry_string, $mySQL_ID) or mysql_die();
	}
	
}


header("Location: cart.php");
exit;
?>