Question

我在购物车中有购物车中显示的商品。例如：我有3个不同的数量项目我设法将它回显到购物车页面，并将订单写入ORDERS表。

 <?php
 ...
 $sql = "SELECT id_item, item, price FROM id_item WHERE id_item IN (";
    foreach ($_SESSION['cart'] as $id => $value) {
       $sql .=$id.",";
    }
$sql = substr($sql, 0, -1).") ORDER BY item ASC";
$query =mysql_query($sql);
$total = 0;
while($row=mysql_fetch_array($query)) {
    $subtotal = $_SESSION['cart'][$row['id_item']]['quantity']*$row['price'];
    $total += $subtotal; 
?>
<tr>
    <td width="200px" style="padding-left:20px;"><?= $row['item'] ?></td>
    <td style="padding-left:20px;"><input type="text" name="quantity[<?= $row['id_item']?>]" size="5" value="<?= $_SESSION['cart'][$row['id_item']]['quantity']?>"</td>
    <td style="padding-left:20px;"><?= $row['price']?></td>
    <td style="padding-left:20px;"><?= $_SESSION['cart'][$row['id_item']]['quantity']*$row['price']?> kn</td>
</tr>
...

所以现在我想在ORD.ITEMS表中写一个订单，因为它有多个项目，所以我被困在这里。

表ORDERS和ORD.ITEMS在id_order上有关系，表ORD.ITEMS和ITEMS依赖于item＆amp; id_item

 ORDERS
 id_order
 user
 date
 status   -> this I'll try on my own, if status is 0 order is open, if 1 order closed, if 2 order

 ORD.ITEMS
 id_order
 id_ord.items
 item
 quantity

 ITEMS
 id_item
 title
 description
 price

所以现在我想要三个不同的项目：

 ORDERS
 1
 user1
 2014-01-01
 0

 ORD.ITEMS
 1
 1
 10
 5 

 ORD.ITEMS
 1
 2
 20
 3

 ORD.ITEMS
 1
 3
 30
 2

如何编写SQL查询，在完成订单后写入表ORD.ITEMS三项？

Answer 1

我设法解决了我的问题，很容易。这是我解决它的一种方式：

    $sqlMaxS = "SELECT MAX(id_ord_items) FROM ord.items";
    $resultMaxS = queryDB($sqlMaxS);
    $result = mysql_fetch_row($resultMaxS);
    $id_ord_items = $result['0'];
    $id_ord_items++;


    $sql = "SELECT * FROM items WHERE id_item IN (";

    foreach ($_SESSION['cart'] as $id => $value) {
        $sql .=$id.",";
    }

    $sql = substr($sql, 0, -1).") ORDER BY name ASC";

    $query =mysql_query($sql);

    while($row=mysql_fetch_array($query)) {

        $sql = "INSERT INTO ord.items (id_order, id_ord_items, item, quantity)
                VALUES ('$id_order', '$id_ord_items', {$row['id_item']}, {$_SESSION['cart'][$row['id_item']]['quantity']})";
    $stavka++;
    queryDB($sql);

就像上面我使用while循环一样。

来自项目的回应订单

1 个答案: