Create guest user in user table when creating a participant

apps/web/src/trpc/routers/polls/participants.ts

@@ -92,9 +92,14 @@ export const participants = router({
 
         const participant = await prisma.participant.create({
           data: {
-            pollId: pollId,
             name: name,
             email,
+            locale: user.locale ?? undefined,
+            poll: {
+              connect: {
+                id: pollId,
+              },
+            },
             user: {
               connectOrCreate: {
                 where: {
@@ -102,12 +107,15 @@ export const participants = router({
                 },
                 create: {
                   id: user.id,
+                  isGuest: true,
                 },
               },
             },
-            locale: user.locale ?? undefined,
           },
-          include: {
+          select: {
+            id: true,
+            name: true,
+            email: true,
             poll: {
               select: {
                 id: true,

packages/database/prisma/migrations/20241218160237_create_guest_users_for_participants/migration.sql

@@ -9,8 +9,9 @@ BEGIN
         WHERE user_id IS NULL
     LOOP
         WITH new_user AS (
-            INSERT INTO users (is_guest, created_at)
+            INSERT INTO users (id, is_guest, created_at)
             VALUES (
+                gen_random_uuid()::text,
                 TRUE,
                 NOW()
             )

packages/database/prisma/migrations/20241218162444_participant_user_required/migration.sql

@@ -4,7 +4,6 @@
   - Made the column `user_id` on table `participants` required. This step will fail if there are existing NULL values in that column.
 
 */
-
 -- AlterTable
 ALTER TABLE "participants" ALTER COLUMN "user_id" SET NOT NULL;
 

packages/database/prisma/migrations/20241218162726_test/migration.sql

@@ -0,0 +1,5 @@
+-- DropForeignKey
+ALTER TABLE "participants" DROP CONSTRAINT "participants_user_id_fkey";
+
+-- AddForeignKey
+ALTER TABLE "participants" ADD CONSTRAINT "participants_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;

packages/database/prisma/schema.prisma

@@ -194,7 +194,7 @@ model Participant {
 
   votes Vote[] @relation("ParticipantToVotes")
   poll  Poll   @relation("PollToParticipants", fields: [pollId], references: [id], onDelete: Cascade)
-  user  User   @relation(fields: [userId], references: [id])
+  user  User   @relation(fields: [userId], references: [id], onDelete: Cascade)
 
   @@index([pollId], type: Hash)
   @@map("participants")