Apply filter to add metadata for generated variations (#45953)

* Add meta_data parameter in generateProductVariations

* Apply filter to get meta_data to generate variations

* Add meta_data parameter in generate variations endpoint

* Update name and add documentation

* Fix useEntityRecord in blockEditor

packages/js/data/changelog/add-metadata_variations

@@ -0,0 +1,4 @@
+Significance: minor
+Type: add
+
+Add meta_data parameter in generateProductVariations

packages/js/data/src/product-variations/actions.ts

@@ -17,7 +17,11 @@ import type {
 	GenerateRequest,
 } from './types';
 import CRUD_ACTIONS from './crud-actions';
-import { ProductAttribute, ProductDefaultAttribute } from '../products/types';
+import {
+	Product,
+	ProductAttribute,
+	ProductDefaultAttribute,
+} from '../products/types';
 
 export function generateProductVariationsError( key: IdType, error: unknown ) {
 	return {
@@ -48,6 +52,7 @@ export const generateProductVariations = function* (
 		type?: string;
 		attributes: ProductAttribute[];
 		default_attributes?: ProductDefaultAttribute[];
+		meta_data?: Product[ 'meta_data' ];
 	},
 	data: GenerateRequest,
 	saveAttributes = true

packages/js/product-editor/changelog/add-metadata_variations

@@ -0,0 +1,4 @@
+Significance: minor
+Type: add
+
+Apply filter to get meta_data to generate variations

packages/js/product-editor/src/components/block-editor/block-editor.tsx

@@ -14,6 +14,7 @@ import { uploadMedia } from '@wordpress/media-utils';
 import { PluginArea } from '@wordpress/plugins';
 import { __ } from '@wordpress/i18n';
 import { useLayoutTemplate } from '@woocommerce/block-templates';
+import { Product } from '@woocommerce/data';
 import {
 	// eslint-disable-next-line @typescript-eslint/ban-ts-comment
 	// @ts-ignore No types for this exist yet.
@@ -154,7 +155,7 @@ export function BlockEditor( {
 		{ postType }
 	);
 
-	const { record: product } = useEntityRecord(
+	const { record: product } = useEntityRecord< Product >(
 		'postType',
 		postType,
 		productId

packages/js/product-editor/src/hooks/use-product-variations-helper.ts

@@ -2,7 +2,6 @@
  * External dependencies
  */
 import { dispatch, resolveSelect, useSelect } from '@wordpress/data';
-import { useEntityProp } from '@wordpress/core-data';
 import { useCallback, useMemo, useState } from '@wordpress/element';
 import { getNewPath, getPath, navigateTo } from '@woocommerce/navigation';
 import {
@@ -11,6 +10,8 @@ import {
 	ProductDefaultAttribute,
 	ProductVariation,
 } from '@woocommerce/data';
+import { applyFilters } from '@wordpress/hooks';
+import { useEntityProp, useEntityRecord } from '@wordpress/core-data';
 
 /**
  * Internal dependencies
@@ -58,6 +59,13 @@ export function useProductVariationsHelper() {
 		'product',
 		'id'
 	);
+
+	const { record: product } = useEntityRecord< Product >(
+		'postType',
+		'product',
+		productId
+	);
+
 	const [ _isGenerating, setIsGenerating ] = useState( false );
 
 	const { isGeneratingVariations, generateError } = useSelect(
@@ -116,6 +124,18 @@ export function useProductVariationsHelper() {
 		await dispatch(
 			EXPERIMENTAL_PRODUCT_VARIATIONS_STORE_NAME
 		).invalidateResolutionForStore();
+		/**
+		 * Filters the meta_data array for generated variations.
+		 *
+		 * @filter woocommerce.product.variations.generate.meta_data
+		 * @param {Object} product Main product object.
+		 * @return {Object} meta_data array for variations.
+		 */
+		const meta_data = applyFilters(
+			'woocommerce.product.variations.generate.meta_data',
+			[],
+			product
+		);
 
 		return dispatch( EXPERIMENTAL_PRODUCT_VARIATIONS_STORE_NAME )
 			.generateProductVariations< {
@@ -133,6 +153,7 @@ export function useProductVariationsHelper() {
 				{
 					delete: true,
 					default_values: defaultVariationValues,
+					meta_data,
 				}
 			)
 			.then( async ( response ) => {

packages/js/product-editor/typings/index.d.ts

@@ -19,4 +19,9 @@ declare module '@wordpress/core-data' {
 		prop: string,
 		id?: string
 	): [ T, ( value: T ) => void, T ];
+	function useEntityRecord< T = unknown >(
+		kind: string,
+		name: string,
+		id: number | string
+	): { record: T };
 }

plugins/woocommerce/changelog/add-metadata_variations

@@ -0,0 +1,4 @@
+Significance: minor
+Type: add
+
+Add meta_data parameter in generate variations endpoint

plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php

@@ -1193,10 +1193,11 @@ class WC_Product_Data_Store_CPT extends WC_Data_Store_WP implements WC_Object_Da
 	 * @todo   Add to interface in 4.0.
 	 * @param  WC_Product $product Variable product.
 	 * @param  int        $limit Limit the number of created variations.
-	 * @param  array  	  $default_values Key value pairs to set on created variations.
+	 * @param  array      $default_values Key value pairs to set on created variations.
+	 * @param  array      $metadata Key value pairs to set as meta data on created variations.
 	 * @return int        Number of created variations.
 	 */
-	public function create_all_product_variations( $product, $limit = -1, $default_values = array() ) {
+	public function create_all_product_variations( $product, $limit = -1, $default_values = array(), $metadata = array() ) {
 		$count = 0;
 
 		if ( ! $product ) {
@@ -1226,6 +1227,9 @@ class WC_Product_Data_Store_CPT extends WC_Data_Store_WP implements WC_Object_Da
 			}
 			$variation = wc_get_product_object( 'variation' );
 			$variation->set_props( $default_values );
+			foreach ( $metadata as $meta ) {
+				$variation->add_meta_data( $meta['key'], $meta['value'] );
+			}
 			$variation->set_parent_id( $product->get_id() );
 			$variation->set_attributes( $possible_attribute );
 			$variation_id = $variation->save();

plugins/woocommerce/includes/rest-api/Controllers/Version3/class-wc-rest-product-variations-controller.php

@@ -1121,8 +1121,9 @@ class WC_REST_Product_Variations_Controller extends WC_REST_Product_Variations_V
 		$response          = array();
 		$product           = wc_get_product( $product_id );
 		$default_values    = isset( $request['default_values'] ) ? $request['default_values'] : array();
+		$meta_data         = isset( $request['meta_data'] ) ? $request['meta_data'] : array();
 		$data_store        = $product->get_data_store();
-		$response['count'] = $data_store->create_all_product_variations( $product, Constants::get_constant( 'WC_MAX_LINKED_VARIATIONS' ), $default_values );
+		$response['count'] = $data_store->create_all_product_variations( $product, Constants::get_constant( 'WC_MAX_LINKED_VARIATIONS' ), $default_values, $meta_data );
 
 		if ( isset( $request['delete'] ) && $request['delete'] ) {
 			$deleted_count             = $this->delete_unmatched_product_variations( $product );