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				+<?php 
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				+ 
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				+namespace demo\Services; 
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				+ 
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				+use Silex\Application; 
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				+use Symfony\Component\Routing\Generator\UrlGeneratorInterface; 
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				+ 
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				+class NavBuilder { 
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				+ 
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				+  /** 
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				+   * @var \Twig_Environment 
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				+   */ 
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				+  protected $twig; 
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				+ 
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				+  /** 
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				+   * @var \Symfony\Component\Routing\Generator\UrlGeneratorInterface 
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				+   */ 
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				+  protected $urlGenerator; 
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				+ 
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				+  public function __construct( 
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				+    UrlGeneratorInterface $urlGenerator, 
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				+    \Twig_Environment $twig 
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				+  ) { 
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				+    $this->twig = $twig; 
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				+    $this->urlGenerator = $urlGenerator; 
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				+  } 
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				+ 
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				+  public static function create(Application $app) { 
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				+    $urlGenerator = $app['url_generator']; 
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				+    $twig = $app['twig']; 
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				+    return new static($urlGenerator, $twig); 
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				+  } 
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				+ 
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				+  public function build() { 
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				+    $home = $this->urlGenerator->generate('homepage'); 
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				+    $blog = $this->urlGenerator->generate('blog_list'); 
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				+    $result =  [ 
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				+      'home' => ['url' => $home, 'text' => 'Accueil'], 
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				+      'blog' => ['url' => $blog, 'text' => 'Blogs'], 
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				+    ]; 
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				+    return $result; 
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				+  } 
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				+} 
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