/**
* Allow items on PayPal Standard Subscriptions to be switch when the PayPal account supports Reference Transactions
*
* Because PayPal Standard does not support recurring amount or date changes, items can not be switched when the subscription is using a
* profile ID for PayPal Standard. However, PayPal Reference Transactions do allow these to be updated and because switching uses the checkout
* process, we can migrate a subscription from PayPal Standard to Reference Transactions when the customer switches, so we will allow that.
*
* @since 2.0
*/
public static function can_item_be_switched($item_can_be_switch, $item, $subscription)
{
if (false === $item_can_be_switch && 'paypal' === $subscription->payment_method && WCS_PayPal::are_reference_transactions_enabled()) {
$is_billing_agreement = wcs_is_paypal_profile_a(wcs_get_paypal_id($subscription->id), 'billing_agreement');
if ('line_item' == $item['type'] && wcs_is_product_switchable_type($item['product_id'])) {
$is_product_switchable = true;
} else {
$is_product_switchable = false;
}
if ($subscription->has_status('active') && 0 !== $subscription->get_date('last_payment')) {
$is_subscription_switchable = true;
} else {
$is_subscription_switchable = false;
}
// If the only reason the subscription isn't switchable is because the PayPal profile ID is not a billing agreement, allow it to be switched
if (false === $is_billing_agreement && $is_product_switchable && $is_subscription_switchable) {
$item_can_be_switch = true;
}
}
return $item_can_be_switch;
}
/**
* If a product is being marked as not purchasable because it is limited and the customer has a subscription,
* but the current request is to switch the subscription, then mark it as purchasable.
*
* @since 1.4.4
* @return bool
*/
public static function is_purchasable($is_purchasable, $product)
{
$product_key = !empty($product->variation_id) ? $product->variation_id : $product->id;
if (!isset(self::$is_purchasable_cache[$product_key])) {
if (false === $is_purchasable && wcs_is_product_switchable_type($product) && WC_Subscriptions_Product::is_subscription($product->id) && 'no' != $product->limit_subscriptions && is_user_logged_in() && wcs_user_has_subscription(0, $product->id, $product->limit_subscriptions)) {
// Adding to cart from the product page
if (isset($_GET['switch-subscription'])) {
$is_purchasable = true;
// Validating when restring cart from session
} elseif (self::cart_contains_switches()) {
$is_purchasable = true;
// Restoring cart from session, so need to check the cart in the session (self::cart_contains_subscription_switch() only checks the cart)
} elseif (isset(WC()->session->cart)) {
foreach (WC()->session->cart as $cart_item_key => $cart_item) {
if ($product->id == $cart_item['product_id'] && isset($cart_item['subscription_switch'])) {
$is_purchasable = true;
break;
}
}
}
}
self::$is_purchasable_cache[$product_key] = $is_purchasable;
}
return self::$is_purchasable_cache[$product_key];
}
/**
* Check if a given item on a subscription can be switched.
*
* For an item to be switchable, switching must be enabled, and the item must be for a variable subscription or
* part of a grouped product (at the time the check is made, not at the time the subscription was purchased)
*
* The subscription must also be active or on-hold and use manual renewals or use a payment method which supports cancellation.
*
* @param array $item An order item on the subscription
* @param WC_Subscription $subscription An instance of WC_Subscription
* @since 2.0
*/
public static function can_item_be_switched($item, $subscription = null)
{
if ('line_item' == $item['type'] && wcs_is_product_switchable_type($item['product_id'])) {
$is_product_switchable = true;
} else {
$is_product_switchable = false;
}
if ($subscription->has_status('active') && 0 !== $subscription->get_date('last_payment')) {
$is_subscription_switchable = true;
} else {
$is_subscription_switchable = false;
}
if ($subscription->payment_method_supports('subscription_amount_changes') && $subscription->payment_method_supports('subscription_date_changes')) {
$can_subscription_be_updated = true;
} else {
$can_subscription_be_updated = false;
}
if ($is_product_switchable && $is_subscription_switchable && $can_subscription_be_updated) {
$item_can_be_switch = true;
} else {
$item_can_be_switch = false;
}
return apply_filters('woocommerce_subscriptions_can_item_be_switched', $item_can_be_switch, $item, $subscription);
}
