♻️ Update how we store poll status (#957)

packages/database/prisma/migrations/20231205043530_poll_status/migration.sql

@@ -0,0 +1,50 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `demo` on the `polls` table. All the data in the column will be lost.
+  - You are about to drop the column `legacy` on the `polls` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[event_id]` on the table `polls` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateEnum
+CREATE TYPE "poll_status" AS ENUM ('live', 'paused', 'finalized');
+
+-- AlterTable
+ALTER TABLE "polls" DROP COLUMN "demo",
+DROP COLUMN "legacy",
+ADD COLUMN     "status" "poll_status";
+
+-- CreateIndex
+CREATE UNIQUE INDEX "polls_event_id_key" ON "polls"("event_id");
+
+-- Fix an issue where the "event_id" column was not being set
+UPDATE "polls"
+SET "event_id" = "events"."id"
+FROM "events"
+WHERE "events"."poll_id" = "polls"."id";
+
+-- Set the "status" column to corressponding enum value
+-- If "closed" is true, set to "paused"
+-- If a poll has an "event_id", set to "finalized"
+-- If a poll has a "deletedAt" date, set to "deleted"
+-- Otherwise set to "live"
+UPDATE "polls"
+SET "status" = CASE
+  WHEN "closed" = true THEN 'paused'::poll_status
+  WHEN "event_id" IS NOT NULL THEN 'finalized'::poll_status
+  ELSE 'live'::poll_status
+END;
+
+-- Make the "status" column non-nullable and default to "live"
+ALTER TABLE "polls"
+ALTER COLUMN "status" SET NOT NULL,
+ALTER COLUMN "status" SET DEFAULT 'live';
+
+
+DROP INDEX "events_poll_id_idx";
+
+-- DropIndex
+DROP INDEX "events_poll_id_key";
+
+-- AlterTable
+ALTER TABLE "events" DROP COLUMN "poll_id";

packages/database/prisma/schema.prisma

@@ -117,6 +117,14 @@ enum ParticipantVisibility {
   @@map("participant_visibility")
 }
 
+enum PollStatus {
+  live
+  paused
+  finalized
+
+  @@map("poll_status")
+}
+
 model Poll {
   id                      String        @id @unique @map("id")
   createdAt               DateTime      @default(now()) @map("created_at")
@@ -125,46 +133,45 @@ model Poll {
   title                   String
   description             String?
   location                String?
-  user                    User?         @relation(fields: [userId], references: [id])
   userId                  String        @map("user_id")
-  votes                   Vote[]
   timeZone                String?       @map("time_zone")
-  options                 Option[]
-  participants            Participant[]
-  watchers                Watcher[]
-  demo                    Boolean       @default(false)
-  comments                Comment[]
-  legacy                  Boolean       @default(false) // @deprecated
-  closed                  Boolean       @default(false) // we use this to indicate whether a poll is paused
+  closed                  Boolean       @default(false) // @deprecated
+  status                  PollStatus    @default(live)
   deleted                 Boolean       @default(false)
   deletedAt               DateTime?     @map("deleted_at")
   touchedAt               DateTime      @default(now()) @map("touched_at")
   participantUrlId        String        @unique @map("participant_url_id")
   adminUrlId              String        @unique @map("admin_url_id")
-  eventId                 String?       @map("event_id")
-  event                   Event?
+  eventId                 String?       @unique @map("event_id")
   hideParticipants        Boolean       @default(false) @map("hide_participants")
   hideScores              Boolean       @default(false) @map("hide_scores")
   disableComments         Boolean       @default(false) @map("disable_comments")
   requireParticipantEmail Boolean       @default(false) @map("require_participant_email")
 
+  user                    User?         @relation(fields: [userId], references: [id])
+  event                   Event?        @relation(fields: [eventId], references: [id])
+  options                 Option[]
+  participants            Participant[]
+  watchers                Watcher[]
+  comments                Comment[]
+  votes                   Vote[]
+
   @@index([userId], type: Hash)
   @@map("polls")
 }
 
 model Event {
   id        String   @id @default(cuid())
-  pollId    String   @unique @map("poll_id")
   userId    String   @map("user_id")
   user      User     @relation(fields: [userId], references: [id])
-  poll      Poll     @relation(fields: [pollId], references: [id])
   optionId  String   @map("option_id")
   title     String
   start     DateTime @db.Timestamp(0)
   duration  Int      @default(0) @map("duration_minutes")
   createdAt DateTime @default(now()) @map("created_at")
 
-  @@index([pollId], type: Hash)
+  Poll      Poll?
+
   @@index([userId], type: Hash)
   @@map("events")
 }