"Cannot read property 'id' of undefined"

[janpio]

https://www.notion.so/prismaio/5dff73a06d514724b00557af928fc9c1?v=faa3599cc8154ff2b0b3548e206b07e2 contains many commands for schemas to run introspection and then start Studio. Many of these fail with Cannot read property 'id' of undefined (Chrome, Windows)

This might be related to AUMFIDARR in the QE, but might also be caused by something in Studio itself.

[sdnts]

Tracked this down to AUMFIDARR.

I'm fairly certain that this error will NOT go away by Clearing the cache.

Explanation (mostly for myself):
Studio currently expects every model to have an @id field. Now that that is no longer required, and a bunch of schemas on the Notion doc have models like (I tested number 210):

model AmenitiesToPlace {
  A Amenities @relation("AmenitiesTo_AmenitiesToPlace")
  B Place     @relation("PlaceTo_AmenitiesToPlace")
  @@index([B], name: "B")
  @@map("_AmenitiesToPlace")
  @@unique([A, B], name: "AmenitiesToPlace_AB_unique")
}

after introspection, Studio fails to generate the "autogenerated script" for these models. This is because these models do not have an idField. I need to make sure I handle cases where @id does not exist.

For completeness, here's how you can get a unique identifier for a model's record from the DMMF:

1. If there’s an @id on a field, that field’s isId is set to true
2. If we have an @@id clause, then the idFields will have all fields that are treated as Ids
3. If neither is present, we look for a @unique on a field, which will set the isUnique on the DMMF to true
4. If all these 3 fail, we look for an @@unique, which will set the uniqueFields to all unique fields

[janpio]

I'm fairly certain that this error will NOT go away by Clearing the cache.

I can confirm that :)

[janpio]

Now that is no longer required, and a bunch of schemas on the Notion doc have models like (I tested number 210):

Schema 123 might be a more real world example. It has 1 table with @@id, which should make it quite easy to pinpoint.

[sdnts]

alpha.898 should fix this! Please reopen if this is still reproducible!