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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Sylius\ShopApiPlugin\Controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use FOS\RestBundle\View\View;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use FOS\RestBundle\View\ViewHandlerInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\Component\Core\Model\ImageInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\Component\Core\Model\TaxonInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\Component\Taxonomy\Repository\TaxonRepositoryInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\ShopApiPlugin\Factory\ImageViewFactoryInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\ShopApiPlugin\Factory\TaxonViewFactoryInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sylius\ShopApiPlugin\View\TaxonView;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Bundle\FrameworkBundle\Controller\Controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpFoundation\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpFoundation\Response;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                final class TaxonController extends Controller  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var TaxonRepositoryInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $taxonRepository;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var ViewHandlerInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $viewHandler;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var TaxonViewFactoryInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $taxonViewFactory;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param TaxonRepositoryInterface $taxonRepository  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param ViewHandlerInterface $viewHandler  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param TaxonViewFactoryInterface $taxonViewFactory  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        TaxonRepositoryInterface $taxonRepository,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ViewHandlerInterface $viewHandler,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        TaxonViewFactoryInterface $taxonViewFactory  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->taxonRepository = $taxonRepository;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->viewHandler = $viewHandler;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->taxonViewFactory = $taxonViewFactory;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return Response  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function showDetailsAction(Request $request)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $taxonSlug = $request->attributes->get('slug'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $locale = $request->query->get('locale'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $taxon = $this->taxonRepository->findOneBySlug($taxonSlug, $locale);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (null === $taxon) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            throw new NotFoundHttpException(sprintf('Taxon with slug %s has not been found in %s locale.', $taxonSlug, $locale)); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->viewHandler->handle(View::create($this->buildTaxonView($taxon, $locale), Response::HTTP_OK));  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return Response  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function showTreeAction(Request $request)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $locale = $request->query->get('locale'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $taxons = $this->taxonRepository->findRootNodes();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $taxonViews = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        /** @var TaxonInterface $taxon */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($taxons as $taxon) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $taxonViews[] = $this->buildTaxonView($taxon, $locale);  | 
            
                            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->viewHandler->handle(View::create($taxonViews, Response::HTTP_OK));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param TaxonInterface $taxon  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $locale  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return TaxonView  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function buildTaxonView(TaxonInterface $taxon, $locale)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $taxonView = $this->taxonViewFactory->create($taxon, $locale);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($taxon->getChildren() as $childTaxon) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $taxonView->children[] = $this->buildTaxonView($childTaxon, $locale);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $taxonView;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.