refactor table drop

db/postgresql/migrations/02_add_event_data/migration.sql

@@ -1,5 +1,42 @@
--- AlterTable
-ALTER TABLE event RENAME TO event_old;
+-- DropForeignKey
+ALTER TABLE "event" DROP CONSTRAINT "event_session_id_fkey";
+ALTER TABLE "event" DROP CONSTRAINT "event_website_id_fkey";
+
+-- RenameIndex
+ALTER INDEX "event_pkey" RENAME TO "event_old_pkey";
+ALTER INDEX "event_created_at_idx" RENAME TO "event_old_created_at_idx";
+ALTER INDEX "event_session_id_idx" RENAME TO "event_old_session_id_idx";
+ALTER INDEX "event_website_id_idx" RENAME TO "event_old_website_id_idx";
+
+-- RenameTable
+ALTER TABLE "event" RENAME TO "_event_old";
+
+-- CreateTable
+CREATE TABLE "event" (
+    "event_id" SERIAL NOT NULL,
+    "website_id" INTEGER NOT NULL,
+    "session_id" INTEGER NOT NULL,
+    "created_at" TIMESTAMPTZ(6) DEFAULT CURRENT_TIMESTAMP,
+    "url" VARCHAR(500) NOT NULL,
+    "event_name" VARCHAR(50) NOT NULL,
+
+    PRIMARY KEY ("event_id")
+);
+
+-- CreateIndex
+CREATE INDEX "event_created_at_idx" ON "event"("created_at");
+
+-- CreateIndex
+CREATE INDEX "event_session_id_idx" ON "event"("session_id");
+
+-- CreateIndex
+CREATE INDEX "event_website_id_idx" ON "event"("website_id");
+
+-- AddForeignKey
+ALTER TABLE "event" ADD CONSTRAINT "event_session_id_fkey" FOREIGN KEY ("session_id") REFERENCES "session"("session_id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "event" ADD CONSTRAINT "event_website_id_fkey" FOREIGN KEY ("website_id") REFERENCES "website"("website_id") ON DELETE CASCADE ON UPDATE CASCADE;
 
 -- CreateTable
 CREATE TABLE "event_data" (
@@ -26,22 +63,4 @@ ALTER INDEX "session.session_uuid_unique" RENAME TO "session_session_uuid_key";
 ALTER INDEX "website.share_id_unique" RENAME TO "website_share_id_key";
 
 -- RenameIndex
-ALTER INDEX "website.website_uuid_unique" RENAME TO "website_website_uuid_key";
-
-/*
-  Warnings:
-
-  - You are about to drop the column `event_type` on the `event` table. All the data in the column will be lost.
-  - You are about to drop the column `event_value` on the `event` table. All the data in the column will be lost.
-
-*/
--- Populate event_name
-update event
-set "event_name" = event.event_value;
-
--- Set event_name not null
-ALTER TABLE "event" ALTER COLUMN "event_name" SET NOT NULL;
-
--- Drop old columns
-ALTER TABLE "event" DROP COLUMN "event_type",
-DROP COLUMN "event_value";
+ALTER INDEX "website.website_uuid_unique" RENAME TO "website_website_uuid_key";

db/postgresql/schema.prisma

@@ -33,11 +33,25 @@ model event {
   @@index([website_id])
 }
 
+model event_old {
+  event_id    Int       @id @default(autoincrement())
+  website_id  Int
+  session_id  Int
+  created_at  DateTime? @default(now()) @db.Timestamptz(6)
+  url         String    @db.VarChar(500)
+  event_type  String    @db.VarChar(50)
+  event_value String    @db.VarChar(50)
+
+  @@index([created_at])
+  @@index([session_id])
+  @@index([website_id])
+}
+
 model event_data {
-  id        Int   @id @default(autoincrement()) @map("event_data_id")
-  eventId   Int   @unique @map("event_id")
-  eventData Json  @map("event_data")
-  event     event @relation(fields: [eventId], references: [event_id])
+  id         Int   @id @default(autoincrement())
+  event_id   Int   @unique
+  event_data Json
+  event      event @relation(fields: [event_id], references: [event_id])
 }
 
 model pageview {
@@ -70,8 +84,8 @@ model session {
   language     String?    @db.VarChar(35)
   country      String?    @db.Char(2)
   website      website    @relation(fields: [website_id], references: [website_id], onDelete: Cascade)
-  event        event[]
   pageview     pageview[]
+  event        event[]
 
   @@index([created_at])
   @@index([website_id])
@@ -86,9 +100,9 @@ model website {
   share_id     String?    @unique @db.VarChar(64)
   created_at   DateTime?  @default(now()) @db.Timestamptz(6)
   account      account    @relation(fields: [user_id], references: [user_id], onDelete: Cascade)
-  event        event[]
   pageview     pageview[]
   session      session[]
+  event        event[]
 
   @@index([user_id])
 }