1 reply to this topic

[noviceEntusiast]

hello guys...
i m developing an shopping cart application using plaincart(phpwebcommerce.com).
everthing seems to b working correctly...except 'update cart'
where if i click on update cart button it redirects me 2 d previous page...
i m not able 2 figure out what d problem is.....pls help...
here's d cart.php:
<?php
require_once 'library/config.php';
require_once 'library/cart-functions.php';

$action = (isset($_GET['action']) && $_GET['action'] != '') ? $_GET['action'] : 'view';

switch ($action) {
case 'add' :
addToCart();
break;
case 'update' :
updateCart();
break;
case 'delete' :
deleteFromCart();
break;
case 'view' :
}

$cartContent = getCartContent();
$numItem = count($cartContent);

$pageTitle = 'Shopping Cart';
require_once 'include/header.php';

// show the error message ( if we have any )
displayError();

if ($numItem > 0 ) {
?>
<form action="<?php echo $_SERVER['PHP_SELF'] .'?action=update'; ?>" method="POST" name="frmCart" id="frmCart">
<table width="780" border="0" align="center" cellpadding="5" cellspacing="1" class="entryTable">
<tr class="entryTableHeader">
<td colspan="2" align="center">Item</td>
<td align="center">Unit Price</td>
<td width="75" align="center">Quantity</td>
<td align="center">Total</td>
<td width="75" align="center">&nbsp;</td>
</tr>
<?php
$subTotal = 0;
for ($i = 0; $i < $numItem; $i++) {
extract($cartContent[$i]);
$productUrl = "index.php?c=$cat_id&p=$pd_id";
$subTotal += $pd_price * $ct_qty;
?>
<tr class="content">
<td width="80" align="center"><a href="<?php echo $productUrl; ?>"><img src="<?php echo $pd_thumbnail; ?>" border="0"></a></td>
<td><a href="<?php echo $productUrl; ?>"><?php echo $pd_name; ?></a></td>
<td align="right"><?php echo displayAmount($pd_price); ?></td>
<td width="75"><input name="txtQty[]" type="text" id="txtQty[]" size="5" value="<?php echo $ct_qty; ?>" class="box" onKeyUp="checkNumber(this);">
<input name="hidCartId[]" type="hidden" value="<?php echo $ct_id; ?>">
<input name="hidProductId[]" type="hidden" value="<?php echo $pd_id; ?>">
</td>
<td align="right"><?php echo displayAmount($pd_price * $ct_qty); ?></td>
<td width="75" align="center"> <input name="btnDelete" type="button" id="btnDelete" value="Delete" onClick="window.location.href='<?php echo $_SERVER['PHP_SELF'] . "?action=delete&cid=$ct_id"; ?>';" class="box">
</td>
</tr>
<?php
}
?>
<tr class="content">
<td colspan="4" align="right">Sub-total</td>
<td align="right"><?php echo displayAmount($subTotal); ?></td>
<td width="75" align="center">&nbsp;</td>
</tr>
<tr class="content">
<td colspan="4" align="right">Shipping </td>
<td align="right"><?php echo displayAmount($shopConfig['shippingCost']); ?></td>
<td width="75" align="center">&nbsp;</td>
</tr>
<tr class="content">
<td colspan="4" align="right">Total </td>
<td align="right"><?php echo displayAmount($subTotal + $shopConfig['shippingCost']); ?></td>
<td width="75" align="center">&nbsp;</td>
</tr>
<tr class="content">
<td colspan="5" align="right">&nbsp;</td>
<td width="75" align="center">
<input name="btnUpdate" type="submit" id="btnUpdate" value="Update Cart" class="box"></td>
</tr>
</table>
</form>
<?php
} else {

?>
<p>&nbsp;</p><table width="550" border="0" align="center" cellpadding="10" cellspacing="0">
<tr>
<td><p align="center">You shopping cart is empty</p>
<p>If you find you are unable to add anything to your cart, please ensure that
your internet browser has cookies enabled and that any other security software
is not blocking your shopping session.</p></td>
</tr>
</table>
<?php
}

$shoppingReturnUrl = isset($_SESSION['shop_return_url']) ? $_SESSION['shop_return_url'] : 'index.php';
?>
<table width="550" border="0" align="center" cellpadding="10" cellspacing="0">
<tr align="center">
<td><input name="btnContinue" type="button" id="btnContinue" value="&lt;&lt; Continue Shopping" onClick="window.location.href='<?php echo $shoppingReturnUrl; ?>';" class="box"></td>
<?php
if ($numItem > 0) {
?>
<td><input name="btnCheckout" type="button" id="btnCheckout" value="Proceed To Checkout &gt;&gt;" onClick="window.location.href='checkout.php?step=1';" class="box"></td>
<?php
}
?>
</tr>
</table>
<?php
require_once 'include/footer.php';
?>


and here is update cart function:


function updateCart()
{
$cartId = $_POST['hidCartId'];
$productId = $_POST['hidProductId'];
$itemQty = $_POST['txtQty'];
$numItem = count($itemQty);
$numDeleted = 0;
$notice = '';

for ($i = 0; $i < $numItem; $i++) {
$newQty = (int)$itemQty[$i];
if ($newQty < 1) {
// remove this item from shopping cart
deleteFromCart($cartId[$i]);
$numDeleted += 1;
} else {
// check current stock
$sql = "SELECT pd_name, pd_qty
FROM tbl_product
WHERE pd_id = {$productId[$i]}";
$result = dbQuery($sql);
$row = dbFetchAssoc($result);

if ($newQty > $row['pd_qty']) {
// we only have this much in stock
$newQty = $row['pd_qty'];

// if the customer put more than
// we have in stock, give a notice
if ($row['pd_qty'] > 0) {
setError('The quantity you have requested is more than we currently have in stock. The number available is indicated in the &quot;Quantity&quot; box. ');
} else {
// the product is no longer in stock
setError('Sorry, but the product you want (' . $row['pd_name'] . ') is no longer in stock');

// remove this item from shopping cart
deleteFromCart($cartId[$i]);
$numDeleted += 1;
}
}

// update product quantity
$sql = "UPDATE tbl_cart
SET ct_qty = $newQty
WHERE ct_id = {$cartId[$i]}";

dbQuery($sql);
}
}


if ($numDeleted == $numItem) {
// if all item deleted return to the last page that
// the customer visited before going to shopping cart
header("Location: $returnUrl" . $_SESSION['shop_return_url']);
} else {
header('Location: cart.php');
}


exit;
}

[JoeyMagz]

I know this is way late, but If you don't mind, could you edit this post and put all of that code inside the code snippet brackets. Looking at this just gave me a massive headache, so I'd love to help you but I cannot.