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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony CMF package.
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5 *
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6 * (c) 2011-2015 Symfony CMF
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Cmf\Component\Routing\Enhancer;
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13
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14 use Symfony\Component\HttpFoundation\Request;
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15 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
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16
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17 /**
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18 * This enhancer sets the content to target field if the route provides content.
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19 *
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20 * Only works with RouteObjectInterface routes that can return a referenced
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21 * content.
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22 *
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23 * @author David Buchmann
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24 */
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25 class RouteContentEnhancer implements RouteEnhancerInterface
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26 {
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27 /**
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28 * @var string field for the route class
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29 */
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30 protected $routefield;
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31 /**
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32 * @var string field to write hashmap lookup result into
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33 */
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34 protected $target;
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35
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36 /**
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37 * @param string $routefield the field name of the route class
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38 * @param string $target the field name to set from the map
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39 * @param array $hashmap the map of class names to field values
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40 */
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41 public function __construct($routefield, $target)
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42 {
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43 $this->routefield = $routefield;
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44 $this->target = $target;
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45 }
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46
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47 /**
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48 * If the route has a non-null content and if that content class is in the
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49 * injected map, returns that controller.
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50 *
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51 * {@inheritdoc}
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52 */
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53 public function enhance(array $defaults, Request $request)
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54 {
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55 if (isset($defaults[$this->target])) {
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56 // no need to do anything
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57 return $defaults;
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58 }
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59
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60 if (!isset($defaults[$this->routefield])
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61 || !$defaults[$this->routefield] instanceof RouteObjectInterface
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62 ) {
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63 // we can't determine the content
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64 return $defaults;
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65 }
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66 /** @var $route RouteObjectInterface */
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67 $route = $defaults[$this->routefield];
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68
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69 $content = $route->getContent();
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70 if (!$content) {
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71 // we have no content
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72 return $defaults;
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73 }
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74 $defaults[$this->target] = $content;
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75
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76 return $defaults;
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77 }
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78 }
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