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<?php |
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/** |
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* This file is part of slick/mvc package |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slick\Mvc; |
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use Aura\Router\Route; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Slick\Http\Server\AbstractMiddleware; |
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use Slick\Http\Server\MiddlewareInterface; |
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use Slick\Http\Stream; |
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use Slick\Template\Template; |
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/** |
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* Request Renderer |
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* |
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* @package Slick\Mvc |
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* @author Filipe Silva <[email protected]> |
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*/ |
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class Renderer extends AbstractMiddleware implements MiddlewareInterface |
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{ |
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/** |
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* @var ServerRequestInterface |
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*/ |
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protected $request; |
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/** |
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* Handles a Request and updated the response |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* |
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* @return ResponseInterface |
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*/ |
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public function handle( |
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ServerRequestInterface $request, ResponseInterface $response |
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) |
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{ |
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$this->request = $request; |
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$render = $this->request->getAttribute('render', true); |
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if ($render) { |
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$response = $this->render($response); |
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} |
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return $this->executeNext($request, $response); |
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} |
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/** |
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* Adds a template path |
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* |
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* @param $path |
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*/ |
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public function addTemplatePath($path) |
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{ |
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Template::addPath($path); |
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} |
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/** |
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* Processes and renders the response |
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* |
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* @param ResponseInterface $response |
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* @return ResponseInterface|static |
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*/ |
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protected function render(ResponseInterface $response) |
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{ |
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$stream = new Stream('php://memory', 'rw+'); |
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$this->getEngine()->parse($this->getTemplate()); |
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$content = $this->getEngine()->process($this->getData()); |
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$stream->write($content); |
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$response = $response->withBody($stream); |
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return $response; |
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} |
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/** |
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* Creates the engine for this rendering |
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* |
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* @return \Slick\Template\TemplateEngineInterface |
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*/ |
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protected function getEngine() |
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{ |
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$template = new Template(); |
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return $template->initialize(); |
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} |
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/** |
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* Gets the template file for current request |
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* |
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* @return string |
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*/ |
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protected function getTemplate() |
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{ |
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$template = $this->request |
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->getAttribute('template', $this->getDefaultTemplate()); |
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return $template.'.twig'; |
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} |
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/** |
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* Gets data to be processed |
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* |
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* @return array |
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*/ |
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protected function getData() |
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{ |
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$index = ControllerInterface::REQUEST_ATTR_VIEW_DATA; |
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return $this->request->getAttribute($index, []); |
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} |
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/** |
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* Returns the default template from current request route |
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* |
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* @return string |
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*/ |
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protected function getDefaultTemplate() |
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{ |
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/** @var Route $route */ |
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$route = $this->request->getAttribute('route'); |
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$values = $route->attributes; |
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return "{$values['controller']}/{$values['action']}"; |
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} |
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} |
slickframework /
mvc
