$instance->update($_POST);
        }
        Html::back();
    } else {
        if (isset($_POST["delete"])) {
            if ($instance->canCreate()) {
                $instance->delete($_POST, 1);
            }
            Html::redirect(Toolbox::getItemTypeFormURL('PluginDatabasesDatabase') . "?id=" . $_POST["plugin_databases_databases_id"]);
        } else {
            if (isset($_POST["delete_instance"])) {
                if ($instance->canCreate()) {
                    foreach ($_POST["check"] as $ID => $value) {
                        $instance->delete(array("id" => $ID), 1);
                    }
                }
                Html::back();
            } else {
                $instance->checkGlobal(READ);
                $plugin = new Plugin();
                if ($plugin->isActivated("environment")) {
                    Html::header(PluginDatabasesDatabase::getTypeName(2), '', "assets", "pluginenvironmentdisplay", "databases");
                } else {
                    Html::header(PluginDatabasesDatabase::getTypeName(2), '', "assets", "plugindatabasesmenu");
                }
                $instance->display($_GET);
                Html::footer();
            }
        }
    }
}