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web/vendor/symfony-cmf/routing/Enhancer/ContentRepositoryEnhancer.php

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+<?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;
+    }
+}