diff --git a/src/Controller/PasteController.php b/src/Controller/PasteController.php
index 6ab962c..495623d 100644
--- a/src/Controller/PasteController.php
+++ b/src/Controller/PasteController.php
@@ -3,8 +3,9 @@ declare(strict_types = 1);
 
 namespace App\Controller; 
 
-use App\Form\Type\PasteForm; 
+use App\DTO\PasteFormData; 
 use App\Entity\Paste; 
+use App\Form\Type\PasteForm; 
 use App\Repository\PasteRepository; 
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController; 
 use Symfony\Component\Routing\Annotation\Route; 
@@ -17,19 +18,29 @@ class PasteController extends AbstractController
     #[Route('/')]
     public function new(Request $request, PasteRepository $pasteRepository): Response
     {
-        $paste = new Paste(); 
-        $form = $this->createForm(PasteForm::class, $paste); 
+        $pasteData = new PasteFormData(); 
+        $form = $this->createForm(PasteForm::class, $pasteData); 
 
         $form->handleRequest($request); 
         if ($form->isSubmitted() && $form->isValid()) {
-            $paste = $form->getData(); 
-            $paste->setIp($request->getClientIp()); 
-            $paste->setPublishDate(new \DateTime()); 
+            $pasteData = $form->getData();
 
-            if ($paste->isPrivate()) {
-                $paste->setSecret(hash('sha1', random_bytes(25))); 
+            $secret = null;
+            if ($pasteData->isPrivate()) {
+                $secret = hash('sha1', random_bytes(25)); 
             }
 
+            $paste = new Paste(
+                $pasteData->getText(),
+                $pasteData->getLanguage(),
+                $pasteData->getDescription(),
+                $pasteData->getFilename(),
+                $pasteData->getAuthor(),
+                new \DateTimeImmutable(),
+                $pasteData->getExpirationDate(),
+                $request->getClientIp(),
+                $secret
+            );
             $pasteRepository->save($paste); 
             
             return $this->redirectToRoute($request->attributes->get('_route')); 
diff --git a/src/DTO/PasteFormData.php b/src/DTO/PasteFormData.php
new file mode 100644
index 0000000..1eed046
--- /dev/null
+++ b/src/DTO/PasteFormData.php
@@ -0,0 +1,122 @@
+<?php
+declare(strict_types = 1); 
+
+namespace App\DTO; 
+
+use Symfony\Component\Validator\Constraints as Assert; 
+
+
+class PasteFormData
+{
+    private int $id; 
+
+    #[Assert\NotBlank]
+    private string $text; 
+
+    #[Assert\Type(\boolean::class)]
+    private bool $private; 
+
+    private ?string $language = null; 
+
+    private ?string $description = null; 
+
+    private ?string $filename = null; 
+
+    #[Assert\NotBlank]
+    private string $author = 'anonymous'; 
+
+    #[Assert\Type(\DateTimeImmutable::class)]
+    private ?\DateTimeImmutable $expirationDate; 
+
+    private ?string $secret; 
+
+    public function getId(): int
+    {
+        return $this->id; 
+    }
+
+    public function setId(int $id): void
+    {
+        $this->id = $id; 
+    }
+
+    public function getText(): string
+    {
+        return $this->text; 
+    }
+
+    public function setText(string $text): void
+    {
+        $this->text = $text; 
+    }
+
+    public function getLanguage(): ?string
+    {
+        return $this->language; 
+    }
+
+    public function setLanguage(?string $language): void
+    {
+        $this->language = $language; 
+    }
+
+    public function getDescription(): ?string
+    {
+        return $this->description; 
+    }
+
+    public function setDescription(?string $description): void
+    {
+        $this->description = $description; 
+    }
+
+    public function getFilename(): ?string
+    {
+        return $this->filename; 
+    }
+
+    public function setFilename(?string $filename): void
+    {
+        $this->filename = $filename; 
+    }
+
+    public function getAuthor(): string
+    {
+        return $this->author; 
+    }
+
+    public function setAuthor(string $author): void
+    {
+        $this->author = $author; 
+    }
+
+    public function getExpirationDate(): ?\DateTime
+    {
+        return $this->expirationDate; 
+    }
+
+    public function setExpirationDate(?\DateTime $date): void
+    {
+        $this->expirationDate = $date; 
+    }
+
+    public function getSecret(): ?string
+    {
+        return $this->secret; 
+    }
+
+    public function setSecret(?string $secret): void
+    {
+        $this->secret = $secret; 
+    }
+
+    public function isPrivate(): bool
+    {
+        return $this->private; 
+    }
+
+    public function setPrivate(bool $private): void
+    {
+        $this->private = $private; 
+    }
+}
\ No newline at end of file
diff --git a/src/Entity/Paste.php b/src/Entity/Paste.php
index d4c9c59..54c36dc 100644
--- a/src/Entity/Paste.php
+++ b/src/Entity/Paste.php
@@ -6,158 +6,33 @@ namespace App\Entity;
 use App\Repository\PasteRepository; 
 use Doctrine\DBAL\Types\Types; 
 use Doctrine\ORM\Mapping as ORM; 
-use Symfony\Component\Validator\Constraints as Assert; 
 
 #[ORM\Entity(repositoryClass: PasteRepository::class)]
 class Paste 
 {
     #[ORM\Id]
     #[ORM\GeneratedValue]
-    #[ORM\Column(nullable: false)]
-    private int $id; 
+    #[ORM\Column]
+    public readonly int $id;
 
-    #[ORM\Column(type: 'text', nullable: false)]
-    #[Assert\NotBlank]
-    private string $text; 
-
-    #[ORM\Column(type: 'boolean', nullable: false)]
-    #[Assert\Type(\boolean::class)]
-    private bool $private; 
-
-    #[ORM\Column(length: 25, nullable: true)]
-    private ?string $language; 
-
-    #[ORM\Column(type: 'text', nullable: true)]
-    private ?string $description; 
-
-    #[ORM\Column(length: 128, nullable: true)]
-    private ?string $filename; 
-
-    #[ORM\Column(length: 128, nullable: false)]
-    #[Assert\NotBlank]
-    private string $author = 'anonymous'; 
-
-    #[ORM\Column(type: Types::DATETIME_MUTABLE, nullable: false)]
-    #[Assert\Type(\DateTime::class)]
-    private \DateTime $publishDate; 
-
-    #[ORM\Column(type: Types::DATETIME_MUTABLE, nullable: true)]
-    #[Assert\Type(\DateTime::class)]
-    private ?\DateTime $expirationDate; 
-
-    #[ORM\Column(length: 15, nullable: false)]
-    private string $ip; 
-
-    #[ORM\Column(length: 40, nullable: true)]
-    private ?string $secret; 
-
-    public function getId(): int
-    {
-        return $this->id; 
-    }
-
-    public function setId(int $id): void
-    {
-        $this->id = $id; 
-    }
-
-    public function getText(): string
-    {
-        return $this->text; 
-    }
-
-    public function setText(string $text): void
-    {
-        $this->text = $text; 
-    }
-
-    public function getLanguage(): ?string
-    {
-        return $this->language; 
-    }
-
-    public function setLanguage(?string $language): void
-    {
-        $this->language = $language; 
-    }
-
-    public function getDescription(): ?string
-    {
-        return $this->description; 
-    }
-
-    public function setDescription(?string $description): void
-    {
-        $this->description = $description; 
-    }
-
-    public function getFilename(): ?string
-    {
-        return $this->filename; 
-    }
-
-    public function setFilename(?string $filename): void
-    {
-        $this->filename = $filename; 
-    }
-
-    public function getAuthor(): string
-    {
-        return $this->author; 
-    }
-
-    public function setAuthor(string $author): void
-    {
-        $this->author = $author; 
-    }
-    
-    public function getPublishDate(): \DateTime
-    {
-        return $this->publishDate; 
-    }
-
-    public function setPublishDate(\DateTime $date): void
-    {
-        $this->publishDate = $date; 
-    }
-
-    public function getExpirationDate(): ?\DateTime
-    {
-        return $this->expirationDate; 
-    }
-
-    public function setExpirationDate(?\DateTime $date): void
-    {
-        $this->expirationDate = $date; 
-    }
-
-    public function getIp(): string
-    {
-        return $this->ip; 
-    }
-
-    public function setIP(string $ip): void
-    {
-        $this->ip = $ip; 
-    }
-
-    public function getSecret(): ?string
-    {
-        return $this->secret; 
-    }
-
-    public function setSecret(?string $secret): void
-    {
-        $this->secret = $secret; 
-    }
-
-    public function isPrivate(): bool
-    {
-        return $this->private; 
-    }
-
-    public function setPrivate(bool $private): void
-    {
-        $this->private = $private; 
-    }
+    public function __construct(
+        #[ORM\Column(type: 'text', nullable: false)]
+        public readonly string $text,
+        #[ORM\Column(length: 25, nullable: true)]
+        public readonly ?string $language,
+        #[ORM\Column(type: 'text', nullable: true)]
+        public readonly ?string $description,
+        #[ORM\Column(length: 128, nullable: true)]
+        public readonly ?string $filename,
+        #[ORM\Column(length: 128, nullable: false)]
+        public readonly string $author,
+        #[ORM\Column(type: Types::DATETIME_IMMUTABLE, nullable: false)]
+        public readonly \DateTimeImmutable $publishDate,
+        #[ORM\Column(type: Types::DATETIME_IMMUTABLE, nullable: true)]
+        public readonly ?\DateTimeImmutable $expirationDate,
+        #[ORM\Column(length: 15, nullable: false)]
+        public readonly string $ip,
+        #[ORM\Column(length: 40, nullable: true)]
+        public readonly ?string $secret,
+        ) {}
 }
\ No newline at end of file