private function createEditForm(Scope $scope)
    {
        $form = $this->createForm(new ScopeType(), $scope, array(
            'action' => $this->generateUrl('admin_scope_update', array('id' => $scope->getId())),
            'method' => 'PUT',
        ));

        $form->add('submit', 'submit', array('label' => 'Update'));

        return $form;
    }