Products by Rating: Add block transform for the legacy rating widget

assets/js/blocks/rating-filter/index.tsx

@@ -1,8 +1,9 @@
 /**
  * External dependencies
  */
+import { __ } from '@wordpress/i18n';
 import { isExperimentalBuild } from '@woocommerce/block-settings';
-import { registerBlockType } from '@wordpress/blocks';
+import { createBlock, registerBlockType } from '@wordpress/blocks';
 import { Icon, starEmpty } from '@wordpress/icons';
 import classNames from 'classnames';
 import { useBlockProps } from '@wordpress/block-editor';
@@ -29,6 +30,28 @@ if ( isExperimentalBuild() ) {
 			...metadata.attributes,
 			...blockAttributes,
 		},
+		transforms: {
+			from: [
+				{
+					type: 'block',
+					blocks: [ 'core/legacy-widget' ],
+					// We can't transform if raw instance isn't shown in the REST API.
+					isMatch: ( { idBase, instance } ) =>
+						idBase === 'woocommerce_rating_filter' &&
+						!! instance?.raw,
+					transform: ( { instance } ) =>
+						createBlock( 'woocommerce/rating-filter', {
+							heading:
+								instance?.raw?.title ||
+								__(
+									'Filter by rating',
+									'woo-gutenberg-products-block'
+								),
+							headingLevel: 3,
+						} ),
+				},
+			],
+		},
 		edit,
 		// Save the props to post content.
 		save( { attributes }: { attributes: Attributes } ) {

src/BlockTypesController.php

@@ -148,7 +148,8 @@ public function hide_legacy_widgets_with_block_equivalent( $widget_types ) {
 			'woocommerce_product_tag_cloud',
 			'woocommerce_price_filter',
 			'woocommerce_layered_nav',
-			'woocommerce_layered_nav_filters'
+			'woocommerce_layered_nav_filters',
+			'woocommerce_rating_filter'
 		);
 
 		return $widget_types;