Automattic\WooCommerce\Internal\DataStores\Orders

OrdersTableMetaQuery::get_orderby_keys │ public │ WC 7.4

Returns a list of names (corresponding to meta_query clauses) that can be used as an 'orderby' arg.

Method of the class: OrdersTableMetaQuery{}

No Hooks.

Returns

Array.

Usage

$OrdersTableMetaQuery = new OrdersTableMetaQuery();
$OrdersTableMetaQuery->get_orderby_keys(): array;

Changelog

Since 7.4 Introduced.

OrdersTableMetaQuery::get_orderby_keys() code WC 10.3.3

woocommerce/src/Internal/DataStores/Orders/OrdersTableMetaQuery.php 
public function get_orderby_keys(): array {
	if ( ! $this->flattened_clauses ) {
		return array();
	}

	$keys   = array();
	$keys[] = 'meta_value';
	$keys[] = 'meta_value_num';

	$first_clause = reset( $this->flattened_clauses );
	if ( $first_clause && ! empty( $first_clause['key'] ) ) {
		$keys[] = $first_clause['key'];
	}

	$keys = array_merge(
		$keys,
		array_keys( $this->flattened_clauses )
	);

	return $keys;
}