delete meta keys associated with WC Bookings if the products are missing(avoids fatal errors)

gistfile1.txt

add_action('wp', 'delete_meta_bookings_no_products');

function delete_meta_bookings_no_products() {
	$booking_ids = get_posts( array(
			'numberposts' => 100000,
			'offset'      => 0,
			'orderby'     => 'post_date',
			'order'       => 'DESC',
			'post_type'   => 'wc_booking',
			'post_status' => get_wc_booking_statuses(),
			'fields'      => 'ids',
	) );
  foreach ($booking_ids as $id) {
	$booking = get_wc_booking($id);
	  $product = wc_get_product($booking->product_id);
		if(!$product) {
		delete_post_meta( $id, '_booking_product_id', $booking->product_id );
		delete_post_meta( $id, '_booking_order_item_id' );
	}
  }
}