Product Variation Schema and Checking Term instance Fix

Author: robbiebel

includes/model/class-product-variation.php

@@ -238,7 +238,7 @@ protected function init() {
 					$shipping_class_id   = $this->wc_data->get_shipping_class_id();
 					$shipping_class_term = get_term( $shipping_class_id, 'product_shipping_class' );
 
-					if ( ! is_wp_error( $shipping_class_term ) && is_a( $shipping_class_term, 'WP_Term' ) ) {
+					if ( ! is_wp_error( $shipping_class_term ) && $shipping_class_term instanceof \WP_Term ) {
 						$shipping_class = $shipping_class_term;
 					}
 

includes/type/interface/class-product-variation.php

@@ -241,6 +241,10 @@ public static function get_fields() {
 				'type'        => 'String',
 				'description' => __( 'Product variation purchase_note', 'wp-graphql-woocommerce' ),
 			],
+			'shippingClassId'   => [
+				'type'        => 'Int',
+				'description' => __( 'Product variation shipping class ID', 'wp-graphql-woocommerce' ),
+			],
 			'shippingClass'     => [
 				'type'        => 'ShippingClass',
 				'description' => __( 'Product variation shipping class', 'wp-graphql-woocommerce' ),