Fix user with push subscription not being deleted (#1914)

Author: BentiGorlich

migrations/Version20251214111055.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20251214111055 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Modify UserPushSubscription, so that the user is not nullable and it cascade deletes if the user is deleted';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE user_push_subscription DROP CONSTRAINT FK_AE378BD8A76ED395');
+        $this->addSql('ALTER TABLE user_push_subscription ALTER user_id SET NOT NULL');
+        $this->addSql('ALTER TABLE user_push_subscription ADD CONSTRAINT FK_AE378BD8A76ED395 FOREIGN KEY (user_id) REFERENCES "user" (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE user_push_subscription DROP CONSTRAINT fk_ae378bd8a76ed395');
+        $this->addSql('ALTER TABLE user_push_subscription ALTER user_id DROP NOT NULL');
+        $this->addSql('ALTER TABLE user_push_subscription ADD CONSTRAINT fk_ae378bd8a76ed395 FOREIGN KEY (user_id) REFERENCES "user" (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+}

src/Entity/UserPushSubscription.php

@@ -19,6 +19,7 @@ class UserPushSubscription
     public int $id;
 
     #[ManyToOne(targetEntity: User::class, cascade: ['persist'], inversedBy: 'pushSubscriptions')]
+    #[JoinColumn(nullable: false, onDelete: 'CASCADE')]
     public User $user;
 
     #[Column(type: 'text')]