/**
* Add To Cart
*
* Adds a download ID to the shopping cart.
*
* @since 1.0
*
* @param int $download_id Download IDs to be added to the cart
* @param array $options Array of options, such as variable price
*
* @return string Cart key of the new item
*/
function edd_add_to_cart($download_id, $options = array())
{
$download = new EDD_Download($download_id);
if (empty($download->ID)) {
return;
// Not a download product
}
if (!$download->can_purchase()) {
return;
// Do not allow draft/pending to be purchased if can't edit. Fixes #1056
}
do_action('edd_pre_add_to_cart', $download_id, $options);
$cart = apply_filters('edd_pre_add_to_cart_contents', edd_get_cart_contents());
if (edd_has_variable_prices($download_id) && !isset($options['price_id'])) {
// Forces to the first price ID if none is specified and download has variable prices
$options['price_id'] = '0';
}
if (isset($options['quantity'])) {
if (is_array($options['quantity'])) {
$quantity = array();
foreach ($options['quantity'] as $q) {
$quantity[] = absint(preg_replace('/[^0-9\\.]/', '', $q));
}
} else {
$quantity = absint(preg_replace('/[^0-9\\.]/', '', $options['quantity']));
}
unset($options['quantity']);
} else {
$quantity = 1;
}
// If the price IDs are a string and is a coma separted list, make it an array (allows custom add to cart URLs)
if (isset($options['price_id']) && !is_array($options['price_id']) && false !== strpos($options['price_id'], ',')) {
$options['price_id'] = explode(',', $options['price_id']);
}
$items = array();
if (isset($options['price_id']) && is_array($options['price_id'])) {
// Process multiple price options at once
foreach ($options['price_id'] as $key => $price) {
$items[] = array('id' => $download_id, 'options' => array('price_id' => preg_replace('/[^0-9\\.-]/', '', $price)), 'quantity' => $quantity[$key]);
}
} else {
// Sanitize price IDs
foreach ($options as $key => $option) {
if ('price_id' == $key) {
$options[$key] = preg_replace('/[^0-9\\.-]/', '', $option);
}
}
// Add a single item
$items[] = array('id' => $download_id, 'options' => $options, 'quantity' => $quantity);
}
foreach ($items as &$item) {
$item = apply_filters('edd_add_to_cart_item', $item);
$to_add = $item;
if (!is_array($to_add)) {
return;
}
if (!isset($to_add['id']) || empty($to_add['id'])) {
return;
}
if (edd_item_in_cart($to_add['id'], $to_add['options']) && edd_item_quantities_enabled()) {
$key = edd_get_item_position_in_cart($to_add['id'], $to_add['options']);
if (is_array($quantity)) {
$cart[$key]['quantity'] += $quantity[$key];
} else {
$cart[$key]['quantity'] += $quantity;
}
} else {
$cart[] = $to_add;
}
}
unset($item);
EDD()->session->set('edd_cart', $cart);
do_action('edd_post_add_to_cart', $download_id, $options, $items);
// Clear all the checkout errors, if any
edd_clear_errors();
return count($cart) - 1;
}
