fix: db

prisma/schema.prisma

@@ -1,22 +1,23 @@
 datasource db {
-  provider     = "mysql"
-  url          = env("DATABASE_URL")
-  relationMode = "prisma"
+    provider = "mysql"
+    url      = env("DATABASE_URL")
 }
 
 generator client {
-  provider = "prisma-client-js"
+    provider = "prisma-client-js"
 }
 
 model Keys {
-  id  Int    @id @default(autoincrement())
-  key String @unique
+    id     Int     @id @default(autoincrement())
+    key    String  @unique
+    grades Grade[]
 }
 
 model Grade {
-  id        Int      @id @default(autoincrement())
-  test      Int
-  grade     Float
-  key       String
-  createdAt DateTime @default(now())
+    id        Int      @id @default(autoincrement())
+    test      Int
+    grade     Float
+    key       Keys     @relation(fields: [keyId], references: [id])
+    keyId     Int
+    createdAt DateTime @default(now())
 }