Cart Problem ADD/DELETE/UPDATE items

[talingar]

Hi all I am having troubles integrating a shopping cart.

$action = (isset($_GET['action']) && $_GET['action'] != '') ? $_GET['action'] : 'view';
switch ($action) {
    case 'add' :
        addToCart();
        break;
    case 'update' :
        updateCart();
        break;
    case 'delete' :
        deleteFromCart();
        break;
    case 'view' :
}

Allows me to Delete and Update but not Add an item.

 

[code=php:0]$action = (isset($_POST['action']) && $_POST['action'] != '') ? $_POST['action'] : 'view';

Allows me to ADD an item to the cart(add action passed from previous page via form)  but not Delete or UPDATE

 

Im not sure if I should have attached the pages or just pasted them but heres the code

 

cart.php

<?php
require_once 'config.php';
require_once 'cart-functions2.php';
require_once 'functions.php';
require_once 'database.php';
$ID = $_POST["ID"];
$pSize = $_POST["size"];
$pcolour = $_POST["colour"];
?>
<?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' :
}
$ID = $_POST["ID"];
$cartContent = getCartContent();
$numItem = count($cartContent);

$pageTitle = 'Shopping Cart';


// 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"> </td>
</tr>
<?php
$subTotal = 0;
for ($i = 0; $i < $numItem; $i++) {
    extract($cartContent[$i]);
    $productUrl = "index.php";
    $subTotal += $price * $ct_qty;
?>
<tr class="content">
  <td width="80" align="center"></td>
  <td><?php echo $pDesc; ?></td>
   <td align="right"><?php echo displayAmount($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 $ID; ?>">
  </td>
  <td align="right"><?php echo displayAmount($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
}
?>

 

cart-functions

<?php
require_once 'config.php';

/*********************************************************
*                 SHOPPING CART FUNCTIONS
*********************************************************/

function addToCart()
{
$sid = session_id();
$ID = $_GET["ID"];
$pSize = $_GET["size"];
$pcolour = $_GET["colour"];   
    
    // current session id
    
    
    // check if the product is already
    // in cart table for this session
    $sql = "SELECT ID
            FROM cart
            WHERE ID = '$ID' AND ct_session_id = '$sid'";
    $result = dbQuery($sql);
    
    if (dbNumRows($result) == 0) {
        // put the product in cart table
        $sql = "INSERT INTO cart (ID, ct_qty, ct_session_id, ct_date)
                VALUES ('$ID', 1, '$sid', NOW())";
        $result = dbQuery($sql);
    } else {
        // update product quantity in cart table
        $sql = "UPDATE cart
                SET ct_qty = ct_qty + 1
                WHERE ct_session_id = '$sid' AND ID = '$ID'";        
                
        $result = dbQuery($sql);        
    }    
   
    header('Location: cart2.php'); 
                 
}

/*
    Get all item in current session
    from shopping cart table
*/
function getCartContent()
{
    $cartContent = array();

    $sid = session_id();
    $sql = "SELECT ct.ct_id, ct.ID, ct.ct_size, ct.ct_colour, ct.ct_qty, pd.pDesc, pd.price, pd.ID
            FROM cart ct, products pd
            WHERE ct_session_id = '$sid' AND ct.ID = pd.ID"; 
    
    $result = dbQuery($sql);
   
    while ($row = dbFetchAssoc($result)) {
    
        $cartContent[] = $row;
    }

    return $cartContent;
}

/*
    Remove an item from the cart
*/
function deleteFromCart($cartId = 0)
{
    if (!$cartId && isset($_GET['cid']) && (int)$_GET['cid'] > 0) {
        $cartId = (int)$_GET['cid'];
    }

    if ($cartId) {    
        $sql  = "DELETE FROM cart
                 WHERE ct_id = $cartId";

        $result = dbQuery($sql);
    }
    
    header('Location: cart2.php');    
}

/*
    Update item quantity in shopping cart
*/
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;
        }
                            
            // update product quantity
            $sql = "UPDATE cart
                    SET ct_qty = $newQty
                    WHERE ct_id = {$cartId[$i]}";
                
            dbQuery($sql);
       
    }

    exit;
}

function isCartEmpty()
{
    $isEmpty = false;
    
    $sid = session_id();
    $sql = "SELECT ct_id
            FROM cart ct
            WHERE ct_session_id = '$sid'";
    
    $result = dbQuery($sql);
    
    if (dbNumRows($result) == 0) {
        $isEmpty = true;
    }    
    
    return $isEmpty;
}

/*
    Delete all cart entries older than one day
*/
function deleteAbandonedCart()
{
    $yesterday = date('Y-m-d H:i:s', mktime(0,0,0, date('m'), date('d') - 1, date('Y')));
    $sql = "DELETE FROM cart
            WHERE ct_date < '$yesterday'";
    dbQuery($sql);        
}

?> 

 

Thanks in advance

[Rifts]

It looks like you are mixing GET and POST

 

just use $_REQUEST['action'] as this will use both

$action = (isset($_REQUEST['action']) && $_REQUEST['action'] != '') ? $_REQUEST['action'] : 'view';
switch ($action) {
    case 'add' :
        addToCart();
        break;
    case 'update' :
        updateCart();
        break;
    case 'delete' :
        deleteFromCart();
        break;
    case 'view' :
}

 

 

 

[Maq]

If you're going to use HTTP then use GET, if you're using POST, then you should be using POST.

[talingar]

THANKS A MILLION