new survey page

prisma/migrations/20240617043350_cascade_delete_messages/migration.sql

@@ -0,0 +1,5 @@
+-- DropForeignKey
+ALTER TABLE `message` DROP FOREIGN KEY `Message_surveyId_fkey`;
+
+-- AddForeignKey
+ALTER TABLE `Message` ADD CONSTRAINT `Message_surveyId_fkey` FOREIGN KEY (`surveyId`) REFERENCES `Survey`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;

prisma/schema.prisma

@@ -287,7 +287,7 @@ model Message {
   answer      String?
   answerDate  DateTime?
 
-  Survey   Survey? @relation(fields: [surveyId], references: [id])
+  Survey   Survey? @relation(fields: [surveyId], references: [id], onDelete: Cascade)
   surveyId Int?
 }