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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace App\Controller\Api;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Entity\History;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Model\HistoryResponse;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Model\Link;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Model\PaginationLinks;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use FOS\RestBundle\Request\ParamFetcher;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use FOS\RestBundle\Controller\Annotations\QueryParam;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Nelmio\ApiDocBundle\Annotation\Model;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Swagger\Annotations as SWG;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Routing\Annotation\Route;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @Route("/api/histories") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class HistoryController extends AbstractController  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Route("", name="get_histories", methods={"GET"}) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @SWG\Response(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     response=200,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     description="Returns a collection of History",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     @SWG\Schema(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *         type="array",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *         @SWG\Items(ref=@Model(type=HistoryResponse::class))  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @SWG\Response(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     response=404,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     description="Returns when the entities with given limit and offset are not found",  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @QueryParam(name="limit", requirements="\d+", default="10", description="Count entries at one page")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @QueryParam(name="page", requirements="\d+", default="1", description="Number of page to be shown")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @QueryParam(name="locale", requirements="^[a-zA-Z]+", default="uk", description="Selects language of data you want to receive")  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function cgetAction(ParamFetcher $paramFetcher)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $em = $this->getDoctrine()->getManager();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $histories = $em->getRepository('App:History') | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->findAllHistory(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ($paramFetcher->get('page')-1) * $paramFetcher->get('limit') | 
            
            
                                                                        
                            
            
                                    
            
            
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                            )  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyTranslated = [];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        /** @var History $history */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        foreach ($histories as $history) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $history->setLocale($paramFetcher->get('locale')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $em->refresh($history);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $history->unsetTranslations();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $historyTranslated[] = $history;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $histories = $historyTranslated;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse = new HistoryResponse();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setHistory($histories);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setTotalCount($this->getDoctrine()->getManager()->getRepository('App:History')->getCount()); | 
            
                            
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                        $historyResponse->setPageCount(ceil($historyResponse->getTotalCount() / $paramFetcher->get('limit'))); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setPage($paramFetcher->get('page')); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $self = $this->generateUrl('get_histories', [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'locale' => $paramFetcher->get('locale'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'limit' => $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'page' => $paramFetcher->get('page'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ], true  | 
            
                            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $first = $this->generateUrl('get_histories', [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'locale' => $paramFetcher->get('locale'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'limit' => $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ], true  | 
            
                            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $nextPage = $paramFetcher->get('page') < $historyResponse->getPageCount() ? | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->generateUrl('get_histories', [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'locale' => $paramFetcher->get('locale'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'limit' => $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'page' => $paramFetcher->get('page')+1, | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ], true  | 
            
                            
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                            ) :  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'false';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $previsiousPage = $paramFetcher->get('page') > 1 ? | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->generateUrl('get_histories', [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'locale' => $paramFetcher->get('locale'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'limit' => $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                'page' => $paramFetcher->get('page')-1, | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ], true  | 
            
                            
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                            ) :  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'false';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $last = $this->generateUrl('get_histories', [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'locale' => $paramFetcher->get('locale'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'limit' => $paramFetcher->get('limit'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'page' => $historyResponse->getPageCount(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ], true  | 
            
                            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $links = new PaginationLinks();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setLinks($links->setSelf(new Link($self)));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setLinks($links->setFirst(new Link($first)));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setLinks($links->setNext(new Link($nextPage)));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setLinks($links->setPrev(new Link($previsiousPage)));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $historyResponse->setLinks($links->setLast(new Link($last)));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $historyResponse;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Route("/{slug}", name="get_history", methods={"GET"}) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @SWG\Response(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     response=200,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     description="Returns an History by unique property {slug}", | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     @Model(type=History::class)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @SWG\Response(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     response=404,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *     description="Returns when History by {slug} was not found", | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @QueryParam(name="locale", requirements="^[a-zA-Z]+", default="uk", description="Selects language of data you want to receive")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                    public function getAction(ParamFetcher $paramFetcher, $slug)  | 
            
                            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $em = $this->getDoctrine()->getManager();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $history = $em  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    139
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                            ->getRepository('App:History')->findOneByslug($slug); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    141
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                        if (!$history) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw $this->createNotFoundException('Unable to find '.$slug.' entity'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    143
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $history->setLocale($paramFetcher->get('locale')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    146
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                        $em->refresh($history);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    148
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                        if ($history->getTranslations()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    149
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                            $history->unsetTranslations();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    152
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                        return $history;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: