--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony CMF package.
+ *
+ * (c) 2011-2015 Symfony CMF
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Cmf\Component\Routing\Enhancer;
+
+use Symfony\Cmf\Component\Routing\ContentRepositoryInterface;
+use Symfony\Cmf\Component\Routing\RouteObjectInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * This enhancer uses a ContentRepositoryInterface to load a content if $target
+ * is empty.
+ *
+ * $source specifies the field that contains the ID to load, $target specifies
+ * the field where to put the content returned by the repository.
+ *
+ * @author Samusev Andrey
+ */
+class ContentRepositoryEnhancer implements RouteEnhancerInterface
+{
+ /**
+ * @var ContentRepositoryInterface
+ */
+ private $contentRepository;
+
+ /**
+ * @var string
+ */
+ private $target;
+
+ /**
+ * @var string
+ */
+ private $source;
+
+ /**
+ * @param ContentRepositoryInterface $contentRepository repository to search for the content
+ * @param string $target the field name to set content
+ * @param string $source the field name of the request parameter that contains the id
+ */
+ public function __construct(
+ ContentRepositoryInterface $contentRepository,
+ $target = RouteObjectInterface::CONTENT_OBJECT,
+ $source = RouteObjectInterface::CONTENT_ID
+ ) {
+ $this->contentRepository = $contentRepository;
+ $this->target = $target;
+ $this->source = $source;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function enhance(array $defaults, Request $request)
+ {
+ if (!isset($defaults[$this->target]) && isset($defaults[$this->source])) {
+ $defaults[$this->target] = $this->contentRepository->findById($defaults[$this->source]);
+ }
+
+ return $defaults;
+ }
+}