woocommerce_add_to_cart_sold_individually_found_in_cart хук-фильтр . WC 1.0

Force quantity to 1 if sold individually and check for existing item in cart.

Использование

add_filter( 'woocommerce_add_to_cart_sold_individually_found_in_cart', 'filter_function_name_1695', 10, 5 );
function filter_function_name_1695( $condition, $product_id, $variation_id, $cart_item_data, $cart_id ){
	// filter...

	return $condition;
}

$condition

-

$product_id

-

$variation_id

-

$cart_item_data

-

$cart_id

-

Где вызывается хук

$found_in_cart = apply_filters( 'woocommerce_add_to_cart_sold_individually_found_in_cart', $cart_item_key && $this->cart_contents[ $cart_item_key ]['quantity'] > 0, $product_id, $variation_id, $cart_item_data, $cart_id );

Где используется хук в ядре WooCommerce