Rector: apply rules for doctrine code quality

src/Bundle/ChillDocStoreBundle/Entity/Document.php

@@ -54,7 +54,7 @@ class Document implements TrackCreationInterface, TrackUpdateInterface
      * @ORM\GeneratedValue
      * @ORM\Column(type="integer")
      */
-    private $id;
+    private ?int $id = null;
 
     /**
      * @ORM\ManyToOne(
@@ -83,10 +83,8 @@ class Document implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\User")
-     *
-     * @var \Chill\PersonBundle\Entity\user The user who encoded the exif_read_data
      */
-    private $user;
+    private ?\Chill\MainBundle\Entity\User $user = null;
 
     public function getCategory(): ?DocumentCategory
     {

src/Bundle/ChillDocStoreBundle/Entity/DocumentCategory.php

@@ -24,7 +24,7 @@ class DocumentCategory
      *
      * @var string The class of the document (ie Chill\DocStoreBundle\PersonDocument)
      */
-    private $documentClass;
+    private ?string $documentClass = null;
 
     /**
      * @ORM\Column(type="json")

src/Bundle/ChillDocStoreBundle/Entity/PersonDocument.php

@@ -33,7 +33,7 @@ class PersonDocument extends Document implements HasCenterInterface, HasScopeInt
      *
      * @var \Chill\MainBundle\Entity\Scope The document's center
      */
-    private $scope;
+    private ?\Chill\MainBundle\Entity\Scope $scope = null;
 
     public function getCenter()
     {