code: public function showAction(Tag $tag)
      {
          $deleteForm = $this->createDeleteForm($tag);
  
          return array(
              'entity' => $tag,
              'delete_form' => $deleteForm->createView(),
          );
      }
docs: Finds and displays a Tag entity.
  
  @Route("/{id}")
  @Method("GET")
  @Template()