Prisma not deleting because it depends on nonexistent record - node.js

Question

I'm using Prisma with an Express backend and React frontend. I was testing my delete request on Postman, and I keep getting this error:
"\nInvalid prisma.user.delete() invocation:\n\n\n An operation failed because it depends on one or more records that were required but not found. Record to delete does not exist."
I checked their docs, and unless I missed something—I can't really find much of an explanation. I'm also fairly new to relational databases, and this is the first time I've used Prisma.
My schema is incredibly long, so I'll post the relevant parts:
model User {
id String #id
email String #unique
firstName String
lastName String
approved Boolean #default(false)
usersDb Boolean #default(false)
volunteersDb Boolean #default(false)
createdAt DateTime #default(now())
updatedAt DateTime #updatedAt
avatarUrl String? #default("")
isActive Boolean #default(true)
lastLoggedIn DateTime #default(now())
role String #default("viewer")
volunteer Volunteer[]
}
model Volunteer {
id String #id #default(uuid())
userId String
dbUser User #relation(fields: [userId], references: [id])
My controller
const deleteUser = async (req, res) => {
const { id } = req.params;
await prisma.user.delete({
where: {
id,
},
});
Other than this, the table is behaving as expected and creating the relation to the Volunteer table. I feel like the error has something to do with that because I have another table without a relation, and the delete method works there.
Thanks in advance and happy to provide more info if necessary!

Answer 1

I figured this out and wanted to share. I was right, this had everything to do with the relation I'd created between the User and Volunteer table. When I tried to delete a record from the User table, I didn't tell Prisma what to do with the related records, so I got that error. I went back to my Volunteer model and made the relation fields optional, and the delete request worked. Here's the documentation on this, and here's my updated schema:
model User {
id String #id
email String #unique
firstName String
lastName String
approved Boolean #default(false)
usersDb Boolean #default(false)
volunteersDb Boolean #default(false)
createdAt DateTime #default(now())
updatedAt DateTime #updatedAt
avatarUrl String? #default("")
isActive Boolean #default(true)
lastLoggedIn DateTime #default(now())
role String #default("viewer")
volunteer Volunteer[]
}
model Volunteer {
id String #id #default(uuid())
userId String?
dbUser User? #relation(fields: [userId], references: [id])