$PluginOrderReference_Supplier = new PluginOrderReference_Supplier();
if (isset($_POST["add"])) {
    if (PluginOrderReference_Supplier::canCreate()) {
        if (isset($_POST["suppliers_id"]) && $_POST["suppliers_id"] > 0) {
            $newID = $PluginOrderReference_Supplier->add($_POST);
        }
    }
    Html::redirect($_SERVER['HTTP_REFERER']);
} else {
    if (isset($_POST["update"])) {
        if (PluginOrderReference_Supplier::canCreate()) {
            $PluginOrderReference_Supplier->update($_POST);
        }
        Html::redirect($_SERVER['HTTP_REFERER']);
    } else {
        if (isset($_POST["delete"])) {
            if (PluginOrderReference_Supplier::canCreate()) {
                foreach ($_POST["check"] as $ID => $value) {
                    $PluginOrderReference_Supplier->delete(array("id" => $ID));
                }
            }
            Html::redirect($_SERVER['HTTP_REFERER']);
        } else {
            $PluginOrderReference_Supplier->checkGlobal("r");
            Html::header(__("Supplier for the reference", "order"), '', "plugins", "order", "reference");
            /* load order form */
            $PluginOrderReference_Supplier->showForm($_GET["id"], array('plugin_order_references_id' => $_GET["plugin_order_references_id"]));
            Html::footer();
        }
    }
}