[API] Added parent_id in products endpoint, closes #6786

includes/api/class-wc-api-products.php

@@ -567,6 +567,7 @@ class WC_API_Products extends WC_API_Resource {
 			'related_ids'        => array_map( 'absint', array_values( $product->get_related() ) ),
 			'upsell_ids'         => array_map( 'absint', $product->get_upsells() ),
 			'cross_sell_ids'     => array_map( 'absint', $product->get_cross_sells() ),
+			'parent_id'          => $product->post->post_parent,
 			'categories'         => wp_get_post_terms( $product->id, 'product_cat', array( 'fields' => 'names' ) ),
 			'tags'               => wp_get_post_terms( $product->id, 'product_tag', array( 'fields' => 'names' ) ),
 			'images'             => $this->get_images( $product ),
@@ -871,6 +872,11 @@ class WC_API_Products extends WC_API_Resource {
 			}
 		}
 
+		// Product parent ID for groups
+		if ( isset( $data['parent_id'] ) ) {
+			wp_update_post( array( 'ID' => $id, 'post_parent' => absint( $data['parent_id'] ) ) );
+		}
+
 		// Update parent if grouped so price sorting works and stays in sync with the cheapest child
 		$_product = wc_get_product( $id );
 		if ( $_product->post->post_parent > 0 || $product_type == 'grouped' ) {

readme.txt

@@ -162,6 +162,7 @@ Yes you can! Join in on our [GitHub repository](http://github.com/woothemes/wooc
 * Tweak - Added 'stupidtable' script to allow order item sorting on the order screen (by name, cost, qty).
 * Tweak - In the cart, add variation selected data to the permalink.
 * Dev - API - Look up product by sku.
+* Dev - API - New parent_id param for products API.
 * Dev - Made template debug mode set WC_TEMPLATE_DEBUG_MODE constant and remove all overrides for all template loading functions.
 * Dev - Switched to .scss from .less for all styles.
 * Dev - Included bourbon for scss mixins.