/**
* Check is a subscription coupon is valid before applying
*
* @since 1.2
*/
public static function validate_subscription_coupon($valid, $coupon)
{
self::$coupon_error = '';
// ignore non-subscription coupons
if (!in_array($coupon->type, array('recurring_fee', 'sign_up_fee', 'recurring_percent', 'sign_up_fee_percent'))) {
// make sure there are no other products in the cart which the coupon could be applied to - WC()->cart->get_cart_contents_count() returns the quantity of items in the cart, not the total number of unique items, we need to use WC()->cart->cart_contents for that.
if (1 == count(WC()->cart->cart_contents) && 0 == WC_Subscriptions_Cart::get_cart_subscription_sign_up_fee()) {
$error_message = __('Sorry, this coupon is only valid for an initial payment and the subscription does not have an initial payment.', 'woocommerce-subscriptions');
// now make sure there is actually something for the coupon to be applied to (i.e. not a free trial or sync'd subscription without any prorated initial amount)
if (WC_Subscriptions_Cart::cart_contains_free_trial()) {
self::$coupon_error = $error_message;
} elseif (WC_Subscriptions_Synchroniser::cart_contains_synced_subscription() && !WC_Subscriptions_Synchroniser::cart_contains_prorated_subscription()) {
self::$coupon_error = $error_message;
}
}
} else {
// prevent subscription coupons from being applied to renewal payments
if (WC_Subscriptions_Cart::cart_contains_subscription_renewal('child')) {
self::$coupon_error = __('Sorry, this coupon is only valid for new subscriptions.', 'woocommerce-subscriptions');
}
// prevent subscription coupons from being applied to non-subscription products
if (!WC_Subscriptions_Cart::cart_contains_subscription_renewal() && !WC_Subscriptions_Cart::cart_contains_subscription()) {
self::$coupon_error = __('Sorry, this coupon is only valid for subscription products.', 'woocommerce-subscriptions');
}
// prevent sign up fee coupons from being applied to subscriptions without a sign up fee
if (0 == WC_Subscriptions_Cart::get_cart_subscription_sign_up_fee() && in_array($coupon->type, array('sign_up_fee', 'sign_up_fee_percent'))) {
self::$coupon_error = __('Sorry, this coupon is only valid for subscription products with a sign-up fee.', 'woocommerce-subscriptions');
}
}
if (!empty(self::$coupon_error)) {
$valid = false;
add_filter('woocommerce_coupon_error', __CLASS__ . '::add_coupon_error', 10);
}
return $valid;
}
