Show Only 1 of the Most Recent Item frm Each Selected Category on Product Slider

Hey adotopanuga,

Thank you for using Enfold.

Please try this filter in the functions.php file:

// get the first product in each category
add_filter('avia_product_slide_query', 'avia_product_slide_query_mod', 10, 2);
function avia_product_slide_query_mod($query, $params) {
	$products = array();
	$ids = array();

	if(!empty($params['categories']))
	{
		$terms = explode(',', $params['categories']);
	}

	if(!empty($terms))
	{
		foreach( $terms as $term )
		{
			$args = array(
				'posts_per_page' => 1,
				'post_type' => 'product',
				'no_found_rows' => true,
				'update_post_meta_cache' => false,
				'update_post_term_cache' => false,
				'tax_query' => array(
					array(
						'taxonomy' => $params['taxonomy'],
						'field' => 'id',
						'terms' => $term
					)
				)
			);

			$products[] = get_posts($args)[0];
		}
	}

	$products = array_unique($products, SORT_REGULAR);

	if(!empty($products))
	{
		foreach( $products as $product )
		{
			$ids[] = $product->ID;
		}
	}

	$query['post__in'] = $ids;

	return $query;
}

Best regards,
Ismael