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Edit File : FragmentHandler.php \| Size : 3.80 KB
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Symfony\Component\HttpKernel\Fragment; use Symfony\Component\HttpFoundation\RequestStack; use Symfony\Component\HttpFoundation\Response; use Symfony\Component\HttpFoundation\StreamedResponse; use Symfony\Component\HttpKernel\Controller\ControllerReference; /* * Renders a URI that represents a resource fragment. * * This class handles the rendering of resource fragments that are included into * a main resource. The handling of the rendering is managed by specialized renderers. * * @author Fabien Potencier <fabien@symfony.com> * * @see FragmentRendererInterface / class FragmentHandler { private $debug; private $renderers = []; private $requestStack; /* * @param RequestStack $requestStack The Request stack that controls the lifecycle of requests * @param FragmentRendererInterface[] $renderers An array of FragmentRendererInterface instances * @param bool $debug Whether the debug mode is enabled or not / public function __construct(RequestStack $requestStack, array $renderers = [], bool $debug = false) { $this->requestStack = $requestStack; foreach ($renderers as $renderer) { $this->addRenderer($renderer); } $this->debug = $debug; } /* * Adds a renderer. / public function addRenderer(FragmentRendererInterface $renderer) { $this->renderers[$renderer->getName()] = $renderer; } /* * Renders a URI and returns the Response content. * * Available options: * * * ignore_errors: true to return an empty string in case of an error * * @param string\|ControllerReference $uri A URI as a string or a ControllerReference instance * @param string $renderer The renderer name * @param array $options An array of options * * @return string\|null The Response content or null when the Response is streamed * * @throws \InvalidArgumentException when the renderer does not exist * @throws \LogicException when no master request is being handled / public function render($uri, $renderer = 'inline', array $options = []) { if (!isset($options['ignore_errors'])) { $options['ignore_errors'] = !$this->debug; } if (!isset($this->renderers[$renderer])) { throw new \InvalidArgumentException(sprintf('The "%s" renderer does not exist.', $renderer)); } if (!$request = $this->requestStack->getCurrentRequest()) { throw new \LogicException('Rendering a fragment can only be done when handling a Request.'); } return $this->deliver($this->renderers[$renderer]->render($uri, $request, $options)); } /* * Delivers the Response as a string. * * When the Response is a StreamedResponse, the content is streamed immediately * instead of being returned. * * @return string\|null The Response content or null when the Response is streamed * * @throws \RuntimeException when the Response is not successful */ protected function deliver(Response $response) { if (!$response->isSuccessful()) { throw new \RuntimeException(sprintf('Error when rendering "%s" (Status code is %s).', $this->requestStack->getCurrentRequest()->getUri(), $response->getStatusCode())); } if (!$response instanceof StreamedResponse) { return $response->getContent(); } $response->sendContent(); return null; } } Back

Edit File : FragmentHandler.php | Size : 3.80 KB

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Fragment;

use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\StreamedResponse;
use Symfony\Component\HttpKernel\Controller\ControllerReference;

/**
 * Renders a URI that represents a resource fragment.
 *
 * This class handles the rendering of resource fragments that are included into
 * a main resource. The handling of the rendering is managed by specialized renderers.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @see FragmentRendererInterface
 */
class FragmentHandler
{
    private $debug;
    private $renderers = [];
    private $requestStack;

/**
     * @param RequestStack                $requestStack The Request stack that controls the lifecycle of requests
     * @param FragmentRendererInterface[] $renderers    An array of FragmentRendererInterface instances
     * @param bool                        $debug        Whether the debug mode is enabled or not
     */
    public function __construct(RequestStack $requestStack, array $renderers = [], bool $debug = false)
    {
        $this->requestStack = $requestStack;
        foreach ($renderers as $renderer) {
            $this->addRenderer($renderer);
        }
        $this->debug = $debug;
    }

/**
     * Adds a renderer.
     */
    public function addRenderer(FragmentRendererInterface $renderer)
    {
        $this->renderers[$renderer->getName()] = $renderer;
    }

/**
     * Renders a URI and returns the Response content.
     *
     * Available options:
     *
     *  * ignore_errors: true to return an empty string in case of an error
     *
     * @param string|ControllerReference $uri      A URI as a string or a ControllerReference instance
     * @param string                     $renderer The renderer name
     * @param array                      $options  An array of options
     *
     * @return string|null The Response content or null when the Response is streamed
     *
     * @throws \InvalidArgumentException when the renderer does not exist
     * @throws \LogicException           when no master request is being handled
     */
    public function render($uri, $renderer = 'inline', array $options = [])
    {
        if (!isset($options['ignore_errors'])) {
            $options['ignore_errors'] = !$this->debug;
        }

if (!isset($this->renderers[$renderer])) {
            throw new \InvalidArgumentException(sprintf('The "%s" renderer does not exist.', $renderer));
        }

if (!$request = $this->requestStack->getCurrentRequest()) {
            throw new \LogicException('Rendering a fragment can only be done when handling a Request.');
        }

return $this->deliver($this->renderers[$renderer]->render($uri, $request, $options));
    }

/**
     * Delivers the Response as a string.
     *
     * When the Response is a StreamedResponse, the content is streamed immediately
     * instead of being returned.
     *
     * @return string|null The Response content or null when the Response is streamed
     *
     * @throws \RuntimeException when the Response is not successful
     */
    protected function deliver(Response $response)
    {
        if (!$response->isSuccessful()) {
            throw new \RuntimeException(sprintf('Error when rendering "%s" (Status code is %s).', $this->requestStack->getCurrentRequest()->getUri(), $response->getStatusCode()));
        }

if (!$response instanceof StreamedResponse) {
            return $response->getContent();
        }

$response->sendContent();

return null;
    }
}

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