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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace AppBundle\Controller\Api;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use AppBundle\Entity\FormRequest;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use AppBundle\Entity\FormRequestType;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Mcfedr\JsonFormBundle\Controller\JsonController;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use AppBundle\Exception\JsonHttpException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpFoundation\JsonResponse;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\HttpFoundation\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Component\Routing\Annotation\Route;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @Route("/form_request", name="form_requests") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class FormRequestController extends JsonController  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Route("/{status}", requirements={"status": "pending|past"}) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Method("GET") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return JsonResponse  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function listAction(Request $request, $status)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $requestForms = $this->get('knp_paginator') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ->paginate(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->getDoctrine()->getManager()->getRepository(FormRequest::class)->findBy([  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    'user' => $this->getUser(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    'status' => $status == "pending" ? "pending" : ["approved", "rejected"],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ]),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $request->query->getInt('page', 1), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                10  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->json($requestForms);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Route("/{type}", requirements={"type"= "sick-day|personal-day|overnight-guest"}) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @Method("POST") | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param FormRequestType $type  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param  Request $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return JsonResponse  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                    
            
            
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                    public function addAction($type, Request $request)  | 
            
            
                                                        
            
                                    
            
            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        if (!$request->getContent()) { | 
            
            
                                                        
            
                                    
            
            
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                            throw new JsonHttpException(404, 'Request body is empty');  | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        $data = json_decode($request->getContent());  | 
            
            
                                                        
            
                                    
            
            
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                        if (!preg_match('/(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})/', $data->date)) { | 
            
            
                                                        
            
                                    
            
            
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                            throw new JsonHttpException(404, 'Invalid date format');  | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        $em = $this->getDoctrine()->getManager();  | 
            
            
                                                        
            
                                    
            
            
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                        switch ($type){ | 
            
            
                                                        
            
                                    
            
            
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                            case 'sick-day':  | 
            
            
                                                        
            
                                    
            
            
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                                $formRequestType = $em->getRepository(FormRequestType::class)  | 
            
            
                                                        
            
                                    
            
            
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                                    ->findOneBy(['name' => 'Sick Day']);  | 
            
            
                                                        
            
                                    
            
            
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                                break;  | 
            
            
                                                        
            
                                    
            
            
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                            case 'personal-day':  | 
            
            
                                                        
            
                                    
            
            
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                                $formRequestType = $em->getRepository(FormRequestType::class)  | 
            
            
                                                        
            
                                    
            
            
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                                    ->findOneBy(['name' => 'Personal Day']);  | 
            
            
                                                        
            
                                    
            
            
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                                break;  | 
            
            
                                                        
            
                                    
            
            
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                            case 'overnight-guest':  | 
            
            
                                                        
            
                                    
            
            
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                                $formRequestType = $em->getRepository(FormRequestType::class)  | 
            
            
                                                        
            
                                    
            
            
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                                    ->findOneBy(['name' => 'Overnight Guest']);  | 
            
            
                                                        
            
                                    
            
            
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                                break;  | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                        $date = new \DateTime($data->date);  | 
            
            
                                                        
            
                                    
            
            
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                        $formRequest = new FormRequest();  | 
            
            
                                                        
            
                                    
            
            
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                        $formRequest->setDate($date)  | 
            
            
                                                        
            
                                    
            
            
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                            ->setType($formRequestType)  | 
            
                            
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                            ->setUser($this->getUser());  | 
            
                            
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                        $em->persist($formRequest);  | 
            
            
                                                        
            
                                    
            
            
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                        $em->flush();  | 
            
            
                                                        
            
                                    
            
            
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                        $this->get('app.email_notification')->sendNotification( | 
            
            
                                                        
            
                                    
            
            
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                            $formRequest->getUser()->getEmail(),  | 
            
            
                                                        
            
                                    
            
            
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                            "Form request",  | 
            
            
                                                        
            
                                    
            
            
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                            "Hello, ".$formRequest->getUser()->getFirstName().". Your form request was created."  | 
            
            
                                                        
            
                                    
            
            
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                        );  | 
            
            
                                                        
            
                                    
            
            
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                        return $this->json("Request form created", 200); | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: