FluxBB\Web\Controllers\Admin\GroupsController::update PHP Method

    public function update()
    {
        try {
            // Update group
            return $this->redirectTo('admin_groups_edit')->withMessage('Group was updated successfully.');
            // TODO: params
        } catch (ValidationFailed $e) {
            return $this->redirectTo('admin_groups_edit')->withInput()->withErrors($e);
        }
    }