// Add gender on order view

admin-dev/themes/default/template/controllers/orders/helpers/view/view.tpl

@@ -153,7 +153,7 @@
 			<br />
 			<fieldset>
 				<legend><img src="../img/admin/tab-customers.gif" /> {l s='Customer information'}</legend>
-				<span style="font-weight: bold; font-size: 14px;"><a href="?tab=AdminCustomers&id_customer={$customer->id}&viewcustomer&token={getAdminToken tab='AdminCustomers'}"> {$customer->firstname} {$customer->lastname}</a></span> ({l s='#'}{$customer->id})<br />
+				<span style="font-weight: bold; font-size: 14px;"><a href="?tab=AdminCustomers&id_customer={$customer->id}&viewcustomer&token={getAdminToken tab='AdminCustomers'}"> {$gender->name|escape:'htmlall':'UTF-8'} {$customer->firstname} {$customer->lastname}</a></span> ({l s='#'}{$customer->id})<br />
 				(<a href="mailto:{$customer->email}">{$customer->email}</a>)<br /><br />
 				{if ($customer->isGuest())}
 					{l s='This order has been placed by a guest.'}

controllers/admin/AdminOrdersController.php

@@ -1342,11 +1342,14 @@ class AdminOrdersControllerCore extends AdminController
 				$product['warehouse_name'] = '--';
 		}
 
+		$gender = new Gender((int)$customer->id_gender, $this->context->language->id);
+
 		// Smarty assign
 		$this->tpl_view_vars = array(
 			'order' => $order,
 			'cart' => new Cart($order->id_cart),
 			'customer' => $customer,
+			'gender' => $gender,
 			'customer_addresses' => $customer->getAddresses($this->context->language->id),
 			'addresses' => array(
 				'delivery' => $addressDelivery,