Show all woocommerce products

/* Add Show All Products to Woocommerce Shortcode
function woocommerce_shortcode_display_all_products($args)
{
 if(strtolower(@$args['post__in'][0])=='all')
 {
  global $wpdb;
  $args['post__in'] = array();
  $products = $wpdb->get_results("SELECT ID FROM ".$wpdb->posts." WHERE `post_type`='product'",ARRAY_A);
  foreach($products as $k => $v) { $args['post__in'][] = $products[$k]['ID']; }
 }
 return $args;
}
add_filter('woocommerce_shortcode_products_query', 'woocommerce_shortcode_display_all_products');*/