src/Controller/CRUDController.php
public function showAction($id = null)
    {
        $request = $this->getRequest();
        $id = $request->get($this->admin->getIdParameter());

        $object = $this->admin->getObject($id);

        if (!$object) {
            throw $this->createNotFoundException(sprintf('unable to find the object with id: %s', $id));
        }

        $this->checkParentChildAssociation($request, $object);

        $this->admin->checkAccess('show', $object);

        $preResponse = $this->preShow($request, $object);
        if (null !== $preResponse) {
            return $preResponse;
        }

        $this->admin->setSubject($object);

        $fields = $this->admin->getShow();
        \assert($fields instanceof FieldDescriptionCollection);

        // NEXT_MAJOR: replace deprecation with exception
        if (!\is_array($fields->getElements()) || 0 === $fields->count()) {
            @trigger_error(
                'Calling this method without implementing "configureShowFields"'
                .' is not supported since 3.40.0'
                .' and will no longer be possible in 4.0',
                E_USER_DEPRECATED
            );
        }

        // NEXT_MAJOR: Remove this line and use commented line below it instead
        $template = $this->admin->getTemplate('show');
        //$template = $this->templateRegistry->getTemplate('show');

        return $this->renderWithExtraParams($template, [
            'action' => 'show',
            'object' => $object,
            'elements' => $fields,
        ], null);
    }
public function showAction($id = null)
    {
        $request = $this->getRequest();
        $id = $request->get($this->admin->getIdParameter());

        $object = $this->admin->getObject($id);

        if (!$object) {
            throw $this->createNotFoundException(sprintf('unable to find the object with id: %s', $id));
        }

        $this->checkParentChildAssociation($request, $object);

        $this->admin->checkAccess('show', $object);

        $preResponse = $this->preShow($request, $object);
        if (null !== $preResponse) {
            return $preResponse;
        }

        $this->admin->setSubject($object);

        $fields = $this->admin->getShow();
        \assert($fields instanceof FieldDescriptionCollection);

        // NEXT_MAJOR: replace deprecation with exception
        if (!\is_array($fields->getElements()) || 0 === $fields->count()) {
            @trigger_error(
                'Calling this method without implementing "configureShowFields"'
                .' is not supported since 3.40.0'
                .' and will no longer be possible in 4.0',
                E_USER_DEPRECATED
            );
        }

        // NEXT_MAJOR: Remove this line and use commented line below it instead
        $template = $this->admin->getTemplate('show');
        //$template = $this->templateRegistry->getTemplate('show');

        return $this->renderWithExtraParams($template, [
            'action' => 'show',
            'object' => $object,
            'elements' => $fields,
        ], null);
    }
public function showAction ( $ id = null ) { $ request = $ this -> getRequest ( ) ; $ id = $ request -> get ( $ this -> admin -> getIdParameter ( ) ) ; $ object = $ this -> admin -> getObject ( $ id ) ; if ( ! $ object ) { throw $ this -> createNotFoundException ( sprintf ( 'unable to find the object with id: %s' , $ id ) ) ; } $ this -> checkParentChildAssociation ( $ request , $ object ) ; $ this -> admin -> checkAccess ( 'show' , $ object ) ; $ preResponse = $ this -> preShow ( $ request , $ object ) ; if ( null !== $ preResponse ) { return $ preResponse ; } $ this -> admin -> setSubject ( $ object ) ; $ fields = $ this -> admin -> getShow ( ) ; \ assert ( $ fields instanceof FieldDescriptionCollection ) ; // NEXT_MAJOR: replace deprecation with exception if ( ! \ is_array ( $ fields -> getElements ( ) ) || 0 === $ fields -> count ( ) ) { @ trigger_error ( 'Calling this method without implementing "configureShowFields"' . ' is not supported since 3.40.0' . ' and will no longer be possible in 4.0' , E_USER_DEPRECATED ) ; } // NEXT_MAJOR: Remove this line and use commented line below it instead $ template = $ this -> admin -> getTemplate ( 'show' ) ; //$template = $this->templateRegistry->getTemplate('show'); return $ this -> renderWithExtraParams ( $ template , [ 'action' => 'show' , 'object' => $ object , 'elements' => $ fields , ] , null ) ; }
Show action.

@param int|string|null $id

@throws NotFoundHttpException If the object does not exist
@throws AccessDeniedException If access is not granted

@return Response
Show action .