ISSUE-344: type fix

Author: tatevikg1

src/Domain/Model/Messaging/SubscriberList.php

@@ -57,7 +57,7 @@ class SubscriberList implements DomainModel, Identity, CreationDate, Modificatio
     #[Ignore]
     protected ?DateTime $modificationDate = null;
 
-    #[ORM\Column(name: 'listorder', type: 'integer')]
+    #[ORM\Column(name: 'listorder', type: 'integer', nullable: true)]
     #[SerializedName('list_position')]
     #[Groups(['SubscriberList'])]
     private ?int $listPosition;
@@ -120,7 +120,7 @@ public function setDescription(string $description): void
         $this->description = $description;
     }
 
-    public function getListPosition(): int
+    public function getListPosition(): ?int
     {
         return $this->listPosition;
     }
@@ -130,7 +130,7 @@ public function setListPosition(int $listPosition): void
         $this->listPosition = $listPosition;
     }
 
-    public function getSubjectPrefix(): string
+    public function getSubjectPrefix(): ?string
     {
         return $this->subjectPrefix;
     }

src/Domain/Model/Subscription/Subscription.php

@@ -15,6 +15,7 @@
 use PhpList\Core\Domain\Model\Messaging\SubscriberList;
 use PhpList\Core\Domain\Model\Traits\CreationDateTrait;
 use PhpList\Core\Domain\Model\Traits\ModificationDateTrait;
+use Symfony\Component\Serializer\Attribute\Groups;
 
 /**
  * This class represents subscriber who can subscribe to multiple subscriber lists and can receive email messages from
@@ -57,6 +58,7 @@ class Subscription implements DomainModel, CreationDate, ModificationDate
     )]
     #[ORM\JoinColumn(name: 'listid', onDelete: 'CASCADE')]
     #[Ignore]
+    #[Groups(['SubscriberListMembers'])]
     private ?SubscriberList $subscriberList = null;
 
     public function getSubscriber(): Subscriber|Proxy|null