function fn_required_products_calculate_cart_items(&$cart, &$cart_products, $auth)
{
if (!empty($cart['products'])) {
foreach ($cart['products'] as $key => $entry) {
if (!empty($entry['product_id'])) {
$ids = db_get_fields('SELECT req_prod.required_id FROM ?:product_required_products as req_prod LEFT JOIN ?:products ON req_prod.required_id = ?:products.product_id WHERE req_prod.product_id = ?i AND ?:products.status != ?s', $entry['product_id'], 'D');
if (!empty($ids)) {
$have = fn_required_products_get_existent($auth, $ids);
if (empty($have) || count($have) != count($ids)) {
if (empty($entry['extra']['parent'])) {
$cart['amount'] -= $entry['amount'];
}
unset($cart['products'][$key]);
unset($cart_products[$key]);
}
}
}
}
}
}
/**
* Checks required products on recalculation
*
* @param array $cart Array of the cart contents and user information necessary for purchase
* @param array $cart_products Cart products
* @param array $auth Array of user authentication data (e.g. uid, usergroup_ids, etc.)
* @return bool Always true
*/
function fn_check_calculated_required_products(&$cart, &$cart_products, $auth)
{
if (!empty($cart['products'])) {
foreach ($cart['products'] as $key => $entry) {
if (!empty($entry['product_id'])) {
$ids = fn_get_required_products_ids($entry['product_id']);
if (!empty($ids)) {
$have = fn_required_products_get_existent($auth, $ids, $cart);
if (empty($have) || count($have) != count($ids)) {
if (empty($entry['extra']['parent'])) {
$cart['amount'] -= $entry['amount'];
}
unset($cart['products'][$key]);
unset($cart_products[$key]);
if (isset($cart['product_groups'])) {
foreach ($cart['product_groups'] as $key_group => $group) {
if (in_array($key, array_keys($group['products']))) {
unset($cart['product_groups'][$key_group]['products'][$key]);
}
}
}
fn_check_calculated_required_products($cart, $cart_products, $auth);
}
}
}
}
}
return true;
}
/**
* Checks required products on recalculation
*
* @param array $cart Array of the cart contents and user information necessary for purchase
* @param array $cart_products Cart products
* @param array $auth Array of user authentication data (e.g. uid, usergroup_ids, etc.)
* @return bool Always true
*/
function fn_check_calculated_required_products(&$cart, &$cart_products, $auth)
{
if (!empty($cart['products'])) {
foreach ($cart['products'] as $key => $entry) {
if (!empty($entry['product_id'])) {
//comented the line below to avoid deletion of the main product when deleting a required
// $ids = fn_get_required_products_ids($entry['product_id']);
$ids = '';
if (!empty($ids)) {
$have = fn_required_products_get_existent($auth, $ids);
if (empty($have) || count($have) != count($ids)) {
if (empty($entry['extra']['parent'])) {
$cart['amount'] -= $entry['amount'];
}
unset($cart['products'][$key]);
unset($cart_products[$key]);
foreach ($cart['product_groups'] as $key_group => $group) {
if (in_array($key, array_keys($group['products']))) {
unset($cart['product_groups'][$key_group]['products'][$key]);
}
}
fn_check_calculated_required_products($cart, $cart_products, $auth);
}
}
}
}
}
return true;
}
