Migration query + Schedule->EventType to EventType->Schedule (#3140)

* Wrote migration query + change Schedule->EventType to EventType->Schedule

* Removed warning as it is not strictly true

packages/prisma/migrations/20220622110735_allow_one_schedule_to_apply_to_multiple_event_types/migration.sql

@@ -0,0 +1,24 @@
+
+-- DropForeignKey
+ALTER TABLE "Schedule" DROP CONSTRAINT "Schedule_eventTypeId_fkey";
+
+-- DropIndex
+DROP INDEX "Schedule_eventTypeId_key";
+
+-- AlterTable
+ALTER TABLE "EventType" ADD COLUMN     "scheduleId" INTEGER;
+
+UPDATE "EventType"
+SET 
+  "scheduleId" = subquery.id 
+FROM (
+  SELECT id, "eventTypeId" FROM "Schedule"
+) AS subquery
+WHERE
+  "EventType".id = subquery."eventTypeId";
+
+-- AlterTable
+ALTER TABLE "Schedule" DROP COLUMN "eventTypeId";
+
+-- AddForeignKey
+ALTER TABLE "EventType" ADD CONSTRAINT "EventType_scheduleId_fkey" FOREIGN KEY ("scheduleId") REFERENCES "Schedule"("id") ON DELETE SET NULL ON UPDATE CASCADE;

packages/prisma/schema.prisma

@@ -68,7 +68,8 @@ model EventType {
   afterEventBuffer        Int                    @default(0)
   seatsPerTimeSlot        Int?
   schedulingType          SchedulingType?
-  schedule                Schedule?
+  schedule                Schedule?              @relation(fields: [scheduleId], references: [id])
+  scheduleId              Int?
   price                   Int                    @default(0)
   currency                String                 @default("usd")
   slotInterval            Int?
@@ -292,8 +293,7 @@ model Schedule {
   id           Int            @id @default(autoincrement())
   user         User           @relation(fields: [userId], references: [id], onDelete: Cascade)
   userId       Int
-  eventType    EventType?     @relation(fields: [eventTypeId], references: [id])
-  eventTypeId  Int?           @unique
+  eventType    EventType[]
   name         String
   timeZone     String?
   availability Availability[]