datasource db {
    provider     = "mysql"
    url          = env("DATABASE_URL")
    relationMode = "prisma"
}

generator client {
    provider = "prisma-client-js"
}

model Users {
    id        Int      @id @default(autoincrement())
    key       String   @unique
    grades    Grade[]
    firstName String
    lastName  String
    isTeacher Boolean  @default(false)
    test      Test?
    createdAt DateTime @default(now())
}

model Test {
    id        Int      @id @default(autoincrement())
    testOf    Users    @relation(fields: [testOfId], references: [id])
    testOfId  Int      @unique
    testOn    DateTime @default(now())
    createdAt DateTime @default(now())
}

model Grade {
    id        Int      @id @default(autoincrement())
    user      Users    @relation(fields: [userId], references: [id])
    userId    Int
    grade     Float
    note      String?
    createdAt DateTime @default(now())
}