Make WooCommerce products featured programmatically - php

Question

I've tried:
update_post_meta( $product->ID, '_featured', 'true');
But it didn't seem to work
I'm seeing that that removed this as the way to update the featured status of products in WooCommerce but can't find how to do it now
Im trying to get all of my featured and non featured dokan sellers and then update all of their products as featured or non featured based on their store featured status, through something like this:
$args = array( 'featured' => 'yes' );
$featured = dokan_get_sellers( $args );
$args = array( 'featured' => 'no' );
$not_featured = dokan_get_sellers( $args );
foreach ( $featured['users'] as $seller ) {
$products_f = get_posts( array(
'post_type' => 'product',
'author' => $featured->ID,
'posts_per_page' => -1
) );
}
foreach ( $not_featured['users'] as $seller ) {
$products_nf = get_posts( array(
'post_type' => 'product',
'author' => $not_featured->ID,
'posts_per_page' => -1
) );
}
foreach ( $products_f as $product) {
update_post_meta( $product->ID, '_featured', 'true');
}
foreach ( $products_nf as $product) {
update_post_meta( $product->ID, '_featured', 'false');
}
Current code:
add_action( 'set_featured_hook', 'set_featured' );
function set_featured(){
$args_featured = array( 'featured' => 'yes' );
$featured = dokan_get_sellers( $args_featured );
$args_nf = array( 'featured' => 'no' );
$not_featured = dokan_get_sellers( $args_nf );
foreach ( $featured['users'] as $seller ) {
$products_f = get_posts( array(
'post_type' => 'product',
'author' => $seller->ID,
'posts_per_page' => -1
) );
}
foreach ( $not_featured['users'] as $seller ) {
$products_nf = get_posts( array(
'post_type' => 'product',
'author' => $seller->ID,
'posts_per_page' => -1
) );
}
foreach ($products_f as $product) {
$wc_product_f = wc_get_product($product->ID);
$wc_product_f ->set_featured(1);
$wc_product_f ->save();
}
foreach ($products_nf as $product) {
$wc_product_nf = wc_get_product($product->ID);
$wc_product_nf->set_featured(0);
$wc_product_nf->save();
}
}
Thanks

Answer 1

foreach ($products_f as $product) {
$wc_product = wc_get_product($product->ID);
$wc_product->set_featured(1);
$wc_product->save();
}
foreach ($products_nf as $product) {
$wc_product = wc_get_product($product->ID);
$wc_product->set_featured(0);
$wc_product->save();
}
Use the built-in WooCommerce method set_featured() for updating the product.