Woo: вывести в карточке товара ссылки на другие товары (через апсейл)

functions.php

/* Карточка товара */
// Короткое описание
add_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20 );
function woocommerce_template_single_excerpt() {

  global $product;
	$upsale_products = $product->get_upsell_ids();

	if ( !empty($upsale_products) ) {

		?>

		<div class="other_models">
			<div class="other_models_heading">Другие размеры этой модели</div>
			<div class="other_models_content">

		<?php


		foreach ( $upsale_products as $upsale_product_id ) {
			$product_new = new WC_Product($upsale_product_id);
			
			$product_attribute = $product_new->get_attribute( 'pa_size' );

			$terms = get_the_terms( $upsale_product_id, 'product_cat' );
			foreach ($terms as $term) {
            	$product_cat = $term->name;
            	break;
        	}

			$product_name  = $product_new->get_name();
			$product_price = $product_new->get_price();
			$product_url = $product_new->get_permalink();
			$product_thumbnail = $product_new->get_image( $size = 'woocommerce_thumbnail', $attr = array(), $placeholder = true );


			$product_name_short = $product_cat . ' ' . $product_attribute;

			?>
				<div class="other_model">
				<?php echo($product_thumbnail) ?>
				<a class="model_name" href="<?php echo($product_url) ?>"><?php echo($product_name_short) ?></a>
				<span class="woocommerce-Price-amount amount">
					<bdi><?php echo($product_price) ?> <span class="woocommerce-Price-currencySymbol">₽</span></bdi>
				</span>
				</div>
			<?php

		}

		?>

			</div>
		</div>

		<?php
	}
}