[Backend] Correctif newsletter

ShopBundle/Controller/Backend/NewsController.php

                 $users = $this->em->getRepository($this->em->getClassMetadata(UserInterface::class)->getName())->findAllByNewsletter($newsletter) ;
                 
                 $countUsers = count($users) ;
-                $messagesArray = [];
+
+                $packageMessagesArray = [];
+                $packageMessageLimit = 50 ;
 
                 $paramsTemplate = [
                         'news' => $news,
                         'user' => $this->security->getUser()
                 ] ;
 
+                $i = 0 ;
                 foreach ($users as $user) {
+                        if(!isset($packageMessagesArray[$i])) {
+                                $packageMessagesArray[$i] = [] ;
+                        }
+
                         if($user->getEmail() && strlen($user->getEmail())) {
-                                $messagesArray[] = [
+                                $packageMessagesArray[$i][] = [
                                         'To' => [
                                                 [
                                                         'Email' => $user->getEmail(),
                                         'CustomCampaign' => $news->getTitle(),
                                         'DeduplicateCampaign' => true
                                 ] ;
+
+                                if(count($packageMessagesArray[$i]) >= $packageMessageLimit) {
+                                        $i ++ ;
+                                }
                         }
                 }
 
                 if($countUsers > 0) {
                         $mj = new \Mailjet\Client($this->mailjetTransport->getApiKey(), $this->mailjetTransport->getApiSecret(),true,['version' => 'v3.1']);
 
-                        $body = [
-                                'Messages' => $messagesArray
-                        ];
-                        $response = $mj->post(Resources::$Email, ['body' => $body]);
+                        foreach($packageMessagesArray as $messagesArray) {
+                                $body = [
+                                        'Messages' => $messagesArray
+                                ];
+                                $response = $mj->post(Resources::$Email, ['body' => $body]);
+                        }
 
-                        if($response->success()) {
+                        if(isset($response) && $response->success()) {
                                 $this->addFlash('success', 'Actualité envoyée à '.$countUsers.' utilisateurs.');
 
                                 $news->setIsSent(true) ;
                                 $this->em->flush() ;
                         }
                         else {
-                                print_r($response->getBody()) ;
-                                die() ;
                                 $this->addFlash('error', "Une erreur est survenue lors de l'envoi de l'actualité.");
                         }
                 }