get order by OrderPresenter

$order = new Order($id_order);

$this->order_to_display = (new OrderPresenter())->present($order);

$this->context->smarty->assign([

                    'order' => $this->order_to_display,

                    'HOOK_DISPLAYORDERDETAIL' => Hook::exec('displayOrderDetail', ['order' => $order]),

                ]);

TO DISPLAY IN TPL FILE

{$order}

and to get the order detail add in tpl as 

{$HOOK_DISPLAYORDERDETAIL nofilter}

the you can get the detail of order product.

like {$order.details}