/**
* Validate Product Cart Quantity
* Checks that the quantity is within the permitted bounds and return a valid quantity.
*
* @since 3.8.10
* @access public
*
* @param int $quantity Cart item product quantity.
* @param int $prod_id Optional. Product ID.
* @return int The maximum quantity that can be added to the cart.
*
* @uses wpsc_product_max_cart_quantity Gets the maximum product cart quantity.
* @uses wpsc_product_min_cart_quantity Gets the minimum product cart quantity.
* @uses wpsc_cart
*/
function wpsc_validate_product_cart_quantity($quantity, $product_id = 0)
{
$max_quantity = wpsc_product_max_cart_quantity($product_id);
$min_quantity = wpsc_product_min_cart_quantity($product_id);
if ($quantity > $max_quantity) {
return $max_quantity;
}
if ($quantity < $min_quantity) {
return $min_quantity;
}
return $quantity;
}
public function _callback_update_quantity()
{
global $wpsc_cart;
if (!wp_verify_nonce($_REQUEST['_wp_nonce'], 'wpsc-cart-update')) {
wp_die(__('Request expired. Please try updating the items in your cart again.', 'wpsc'));
}
$changed = 0;
$has_errors = false;
extract($_REQUEST, EXTR_SKIP);
foreach ($wpsc_cart->cart_items as $key => &$item) {
if (isset($quantity[$key]) && $quantity[$key] != $item->quantity) {
$product = get_post($item->product_id);
if (!is_numeric($quantity[$key])) {
$message = sprintf(__('Invalid quantity for %s.', 'wpsc'), $product->post_title);
$this->message_collection->add($message, 'error');
continue;
}
if ($quantity[$key] < wpsc_product_min_cart_quantity($item->product_id)) {
$message = __('Sorry, but the quantity you just specified is lower than the minimum allowed quantity of %s. You must purchase at least %s at a time.', 'wpsc');
$this->message_collection->add(sprintf($message, $product->post_title, number_format_i18n(wpsc_product_min_cart_quantity($item->product_id))), 'error');
$has_errors = true;
continue;
}
if ($quantity[$key] > $item->quantity) {
$product = WPSC_Product::get_instance($item->product_id);
if (!$product->has_stock) {
$message = __("Sorry, all the remaining stock of %s has been claimed. You can only checkout with the current quantity in your cart.", 'wpsc');
$this->message_collection->add(sprintf($message, $product->post->post_title), 'error');
$has_errors = true;
continue;
}
if ($product->has_limited_stock && $product->stock < $item->quantity) {
$message = __('Sorry, but the quantity you just specified is larger than the available stock of %s. Besides the current number of that product in your cart, you can only add %d more.', 'wpsc');
$this->message_collection->add(sprintf($message, $product->post->post_title, $product->stock), 'error');
$has_errors = true;
continue;
}
if ($quantity[$key] > wpsc_product_max_cart_quantity($item->product_id)) {
$message = __('Sorry, but the quantity you just specified is larger than the maximum allowed quantity of %s. You may only purchase %s at a time.', 'wpsc');
$this->message_collection->add(sprintf($message, $product->post->post_title, number_format_i18n(wpsc_product_max_cart_quantity($item->product_id))), 'error');
$has_errors = true;
continue;
}
}
$item->quantity = $quantity[$key];
$item->refresh_item();
$changed++;
}
}
$wpsc_cart->clear_cache();
if (!isset($_POST['update_quantity']) && !$has_errors) {
wp_redirect(wpsc_get_checkout_url());
exit;
}
if ($changed) {
$message = _n('You just successfully updated the quantity for %d item.', 'You just successfully updated the quantity for %d items.', $changed, 'wpsc');
$this->message_collection->add(sprintf($message, $changed), 'success');
}
}
