fix: reverse meta relation and tidy code

packages/prisma/migrations/20230922121421_fix_document_meta_schema/migration.sql

@@ -0,0 +1,52 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `documentMetaId` on the `Document` table. All the data in the column will be lost.
+  - You are about to drop the column `customEmailBody` on the `DocumentMeta` table. All the data in the column will be lost.
+  - You are about to drop the column `customEmailSubject` on the `DocumentMeta` table. All the data in the column will be lost.
+  - A unique constraint covering the columns `[documentId]` on the table `DocumentMeta` will be added. If there are existing duplicate values, this will fail.
+  - Added the required column `documentId` to the `DocumentMeta` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- DropForeignKey
+ALTER TABLE "Document" DROP CONSTRAINT "Document_documentMetaId_fkey";
+
+-- DropIndex
+DROP INDEX "Document_documentMetaId_key";
+
+-- AlterTable
+ALTER TABLE "DocumentMeta"
+ADD COLUMN     "documentId" INTEGER,
+ADD COLUMN     "message" TEXT,
+ADD COLUMN     "subject" TEXT;
+
+-- Migrate data
+UPDATE "DocumentMeta" SET "documentId" = (
+  SELECT "id" FROM "Document" WHERE "Document"."documentMetaId" = "DocumentMeta"."id"
+);
+
+-- Migrate data
+UPDATE "DocumentMeta" SET "message" = "customEmailBody";
+
+-- Migrate data
+UPDATE "DocumentMeta" SET "subject" = "customEmailSubject";
+
+-- Prune data
+DELETE FROM "DocumentMeta" WHERE "documentId" IS NULL;
+
+-- AlterTable
+ALTER TABLE "Document" DROP COLUMN "documentMetaId";
+
+-- AlterTable
+ALTER TABLE "DocumentMeta" 
+DROP COLUMN "customEmailBody",
+DROP COLUMN "customEmailSubject";
+
+-- AlterColumn
+ALTER TABLE "DocumentMeta" ALTER COLUMN "documentId" SET NOT NULL;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "DocumentMeta_documentId_key" ON "DocumentMeta"("documentId");
+
+-- AddForeignKey
+ALTER TABLE "DocumentMeta" ADD CONSTRAINT "DocumentMeta_documentId_fkey" FOREIGN KEY ("documentId") REFERENCES "Document"("id") ON DELETE CASCADE ON UPDATE CASCADE;

packages/prisma/schema.prisma

@@ -110,15 +110,12 @@ model Document {
   Field          Field[]
   ShareLink      DocumentShareLink[]
   documentDataId String
-  documentData   DocumentData        @relation(fields: [documentDataId], references: [id], onDelete: Cascade)
-  createdAt      DateTime            @default(now())
-  updatedAt      DateTime            @default(now()) @updatedAt
-
-  documentMetaId String?
-  DocumentMeta   DocumentMeta? @relation(fields: [documentMetaId], references: [id], onDelete: Cascade)
+  documentData   DocumentData   @relation(fields: [documentDataId], references: [id], onDelete: Cascade)
+  documentMeta   DocumentMeta?
+  createdAt      DateTime       @default(now())
+  updatedAt      DateTime       @default(now()) @updatedAt
 
   @@unique([documentDataId])
-  @@unique([documentMetaId])
 }
 
 enum DocumentDataType {
@@ -136,10 +133,11 @@ model DocumentData {
 }
 
 model DocumentMeta {
-  id                 String    @id @default(cuid())
-  customEmailSubject String?
-  customEmailBody    String?
-  Document           Document?
+  id       String    @id @default(cuid())
+  subject  String?
+  message  String?
+  documentId Int @unique
+  document Document @relation(fields: [documentId], references: [id], onDelete: Cascade)
 }
 
 enum ReadStatus {

packages/prisma/types/document-with-data.ts

@@ -1,5 +1,6 @@
-import { Document, DocumentData } from '@documenso/prisma/client';
+import { Document, DocumentData, DocumentMeta } from '@documenso/prisma/client';
 
 export type DocumentWithData = Document & {
   documentData?: DocumentData | null;
+  documentMeta?: DocumentMeta | null;
 };