public function showAction($id)
    {
        $em = $this->getDoctrine()->getManager();
        /** @var Tax $entity */
        $entity = $em->getRepository('EcommerceBundle:Tax')->find($id);

        if (!$entity) {
            throw $this->createNotFoundException('Unable to find Tax entity.');
        }

        $deleteForm = $this->createDeleteForm($id);
        
        return array(
            'entity' => $entity,
            'delete_form' => $deleteForm->createView(),
        );
    }