/**
* Sets which coupons should be applied for this calculation.
*
* This function is hooked to "woocommerce_before_calculate_totals" so that WC will calculate a subscription
* product's total based on the total of it's price per period and sign up fee (if any).
*
* @since 1.3.5
*/
public static function remove_coupons($cart)
{
global $woocommerce;
$calculation_type = WC_Subscriptions_Cart::get_calculation_type();
// Only hook when totals are being calculated completely (on cart & checkout pages)
if ('none' == $calculation_type || !WC_Subscriptions_Cart::cart_contains_subscription() || !is_checkout() && !is_cart() && !defined('WOOCOMMERCE_CHECKOUT') && !defined('WOOCOMMERCE_CART')) {
return;
}
$applied_coupons = $cart->get_applied_coupons();
// If we're calculating a sign-up fee or recurring fee only amount, remove irrelevant coupons
if (!empty($applied_coupons)) {
// Keep track of which coupons, if any, need to be reapplied immediately
$coupons_to_reapply = array();
if (in_array($calculation_type, array('combined_total', 'sign_up_fee_total', 'recurring_total'))) {
foreach ($applied_coupons as $coupon_code) {
$coupon = new WC_Coupon($coupon_code);
if (in_array($coupon->type, array('recurring_fee', 'recurring_percent'))) {
// always apply coupons to their specific calculation case
if ('recurring_total' == $calculation_type) {
$coupons_to_reapply[] = $coupon_code;
} elseif ('combined_total' == $calculation_type && !WC_Subscriptions_Cart::cart_contains_free_trial()) {
// sometimes apply recurring coupons to initial total
$coupons_to_reapply[] = $coupon_code;
} else {
self::$removed_coupons[] = $coupon_code;
}
} elseif (in_array($calculation_type, array('combined_total', 'sign_up_fee_total', 'none')) && !in_array($coupon->type, array('recurring_fee', 'recurring_percent'))) {
// apply all coupons to the first payment
$coupons_to_reapply[] = $coupon_code;
} else {
self::$removed_coupons[] = $coupon_code;
}
}
// Now remove all coupons (WC only provides a function to remove all coupons)
$cart->remove_coupons();
// And re-apply those which relate to this calculation
$woocommerce->cart->applied_coupons = $coupons_to_reapply;
}
}
}
