WC_Discounts::apply_coupon_percent() protected WC 3.2.0
Apply percent discount to items and return an array of discounts granted.
{} Это метод класса: WC_Discounts{}
Возвращает
Число. Total discounted.
Использование
// protected - в коде основоного (родительского) или дочернего класса $result = $this->apply_coupon_percent( $coupon, $items_to_apply );
- $coupon(WC_Coupon) (обязательный)
- Coupon object. Passed through filters.
- $items_to_apply(массив) (обязательный)
- Array of items to apply the coupon to.
Список изменений
С версии 3.2.0 | Введена. |
Код WC_Discounts::apply_coupon_percent() WC Discounts::apply coupon percent WC 5.0.0
protected function apply_coupon_percent( $coupon, $items_to_apply ) {
$total_discount = 0;
$cart_total = 0;
$limit_usage_qty = 0;
$applied_count = 0;
$adjust_final_discount = true;
if ( null !== $coupon->get_limit_usage_to_x_items() ) {
$limit_usage_qty = $coupon->get_limit_usage_to_x_items();
}
$coupon_amount = $coupon->get_amount();
foreach ( $items_to_apply as $item ) {
// Find out how much price is available to discount for the item.
$discounted_price = $this->get_discounted_price_in_cents( $item );
// Get the price we actually want to discount, based on settings.
$price_to_discount = ( 'yes' === get_option( 'woocommerce_calc_discounts_sequentially', 'no' ) ) ? $discounted_price : NumberUtil::round( $item->price );
// See how many and what price to apply to.
$apply_quantity = $limit_usage_qty && ( $limit_usage_qty - $applied_count ) < $item->quantity ? $limit_usage_qty - $applied_count : $item->quantity;
$apply_quantity = max( 0, apply_filters( 'woocommerce_coupon_get_apply_quantity', $apply_quantity, $item, $coupon, $this ) );
$price_to_discount = ( $price_to_discount / $item->quantity ) * $apply_quantity;
// Run coupon calculations.
$discount = floor( $price_to_discount * ( $coupon_amount / 100 ) );
if ( is_a( $this->object, 'WC_Cart' ) && has_filter( 'woocommerce_coupon_get_discount_amount' ) ) {
// Send through the legacy filter, but not as cents.
$filtered_discount = wc_add_number_precision( apply_filters( 'woocommerce_coupon_get_discount_amount', wc_remove_number_precision( $discount ), wc_remove_number_precision( $price_to_discount ), $item->object, false, $coupon ) );
if ( $filtered_discount !== $discount ) {
$discount = $filtered_discount;
$adjust_final_discount = false;
}
}
$discount = wc_round_discount( min( $discounted_price, $discount ), 0 );
$cart_total = $cart_total + $price_to_discount;
$total_discount = $total_discount + $discount;
$applied_count = $applied_count + $apply_quantity;
// Store code and discount amount per item.
$this->discounts[ $coupon->get_code() ][ $item->key ] += $discount;
}
// Work out how much discount would have been given to the cart as a whole and compare to what was discounted on all line items.
$cart_total_discount = wc_round_discount( $cart_total * ( $coupon_amount / 100 ), 0 );
if ( $total_discount < $cart_total_discount && $adjust_final_discount ) {
$total_discount += $this->apply_coupon_remainder( $coupon, $items_to_apply, $cart_total_discount - $total_discount );
}
return $total_discount;
}