Erweiterungstätigkeiten zur IPN-Vorschlagsliste anhand von Präfixen aus den Kategorien

src/Validator/Constraints/UniquePartIpnValidator.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Validator\Constraints;
+
+use App\Entity\Parts\Part;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Doctrine\ORM\EntityManagerInterface;
+
+class UniquePartIpnValidator extends ConstraintValidator
+{
+    private EntityManagerInterface $entityManager;
+    private bool $enforceUniqueIpn;
+
+    public function __construct(EntityManagerInterface $entityManager, bool $enforceUniqueIpn)
+    {
+        $this->entityManager = $entityManager;
+        $this->enforceUniqueIpn = $enforceUniqueIpn;
+    }
+
+    public function validate($value, Constraint $constraint)
+    {
+        if (null === $value || '' === $value) {
+            return;
+        }
+
+        $repository = $this->entityManager->getRepository(Part::class);
+        $existingPart = $repository->findOneBy(['ipn' => $value]);
+
+        if ($existingPart) {
+            if ($this->enforceUniqueIpn) {
+                $this->context->buildViolation($constraint->message)
+                    ->setParameter('{{ value }}', $value)
+                    ->addViolation();
+            }
+        }
+    }
+}