WordPress at a glance
function is not described

WC_API_Orders::set_item() protected WC 2.2

Wrapper method to create/update order items

When updating, the item ID provided is checked to ensure it is associated with the order.

{} It's a method of the class: WC_API_Orders{}

No Hooks.


Null. Nothing.


// protected - for code of main (parent) or child class
$result = $this->set_item( $order, $item_type, $item, $action );
$order(\WC_Order) (required)
$item_type(string) (required)
$item(array) (required)
item provided in the request body
$action(string) (required)
either 'create' or 'update'


Since 2.2 Introduced.

Code of WC_API_Orders::set_item() WC 5.0.0

protected function set_item( $order, $item_type, $item, $action ) {
	global $wpdb;

	$set_method = "set_{$item_type}";

	// verify provided line item ID is associated with order
	if ( 'update' === $action ) {

		$result = $wpdb->get_row(
			$wpdb->prepare( "SELECT * FROM {$wpdb->prefix}woocommerce_order_items WHERE order_item_id = %d AND order_id = %d",
			absint( $item['id'] ),
			absint( $order->get_id() )
		) );

		if ( is_null( $result ) ) {
			throw new WC_API_Exception( 'woocommerce_invalid_item_id', __( 'Order item ID provided is not associated with order.', 'woocommerce' ), 400 );

	$this->$set_method( $order, $item, $action );