Hello, I get an error like this `Unique constraint failed on the constraint: `PersonalData_userId_key`` but I don’t know why. It is the current relationship.

_model_ User {

personalData _PersonalData_?

}

model PersonalData {

user   _User_ @relation(_fields_: [userId], _references_: [id], _onDelete_: Cascade, _onUpdate_: Cascade)

userId _Int_  @unique

}

Hi Okan 👋 From the snippet the model

User

doesn’t have

id

column which is being referenced in user relation column in

PersonalData

model. Could you try this schema:

model User {
  id           Int           @id @default(autoincrement())
  personalData PersonalData?
}

model PersonalData {
  user   User @relation(fields: [userId], references: [id], onDelete: Cascade, onUpdate: Cascade)
  userId Int   @unique
}

@Nurul it actually has, I just removed the useless fields

Oh Okay, when do you get this error? Could you share the query which you are invoking?