Product Query: Add support for sorting by rating

Author: sunyatasattva

assets/js/blocks/product-query/inspector-controls/popular-presets.tsx

@@ -16,6 +16,10 @@ const PRESETS = [
 		key: 'popularity/desc',
 		name: __( 'Best Selling', 'woo-gutenberg-products-block' ),
 	},
+	{
+		key: 'rating/desc',
+		name: __( 'Top Rated', 'woo-gutenberg-products-block' ),
+	},
 ];
 
 export function PopularPresets( props: ProductQueryBlock ) {

src/BlockTypes/ProductQuery.php

@@ -28,7 +28,7 @@ class ProductQuery extends AbstractBlock {
 	 *
 	 * @var array
 	 */
-	protected $custom_order_opts = array( 'popularity' );
+	protected $custom_order_opts = array( 'popularity', 'rating' );
 
 	/**
 	 * All the query args related to the filter by attributes block.
@@ -238,6 +238,7 @@ private function get_custom_orderby_query( $orderby ) {
 
 		$meta_keys = array(
 			'popularity' => 'total_sales',
+			'rating'     => '_wc_average_rating',
 		);
 
 		return array(