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Databases

Frederick Alcantara
Frederick Alcantara
7,617 Points
Posted by Frederick Alcantara
Frederick Alcantara
7,617 Points

Trying to move items from a shopping cart back to the inventory

I am trying to move items from my shopping cart to the inventory page. Here is the current code I have so far:

if(isset($_REQUEST['qty'])) { $qty = $_REQUEST['qty']; $sku = $_REQUEST['sku']; // Test that the requested number of items are in inventory: if ($qty){

            $sql = "UPDATE inventory SET in_stock = in_stock + $qty WHERE sku = '$sku'";
            $db ->query($sql);

            $sql ="INSERT INTO cart ( sku, in_cart ) VALUES( '$sku', $qty ) ON DUPLICATE KEY UPDATE in_cart = in_cart - $qty";
            $db -> query($sql);

            $sql = "DELETE FROM cart WHERE in_cart = 0";
            $db -> query($sql);
        }

}

$result = $db->query('Select * FROM cart LEFT JOIN inventory on inventory.sku = cart.sku' );

?>

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Shopping Cart</title> </head> <body> <div class="shop"> <div class="item"> <h3><?php echo "<a href='index.php'>Home </a>"; ?></h3>

    </div>
    <div class="cart">
        <p></p>

        <form action="" method="get">
        <?php 

            while ( $row = $result->fetch( PDO::FETCH_ASSOC ) ) {

            $cart = $row['in_cart'];
            $title = $row['title'];
            $price = $row['unit_price'];
            $sku2 = $row['sku'];

            echo "<h3>" . $title . "</h3>";

            echo "<select name='qty'>";
            for ($i=1; $i <= $cart; $i++) 
                { 
                     echo "<option>$i</option>" ;
                }
            echo "</select> <input type='submit' value='Remove from Cart' />";
            }   
        ?>   

            <input type="hidden" name="sku" value="<?php echo $_REQUEST['sku'] ?>"> 
            <p></p>
        </form> 
    </div>
</div>

</body> </html>