thread 'tokio-runtime-worker' panicked at 'called `Option::unwrap()`

Bug description

When adding many to many relationships, I get this error when running Prisma client. This happens even when running prisma studio

thread 'tokio-runtime-worker' panicked at 'called `Option::unwrap()` on a `None` value', query-engine/connectors/mongodb-query-connector/src/root_queries/read.rs:106:74

How to reproduce

1. Create a many to many models
2. Run prisma studio
3. Go to model
4. See error

Expected behavior

No response

Prisma information

generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["mongodb"]
  binaryTargets   = ["native", "rhel-openssl-1.0.x"]
}

model Organisation {
  id             String          @id @default(dbgenerated()) @map("_id") @db.ObjectId
  name           String
  activityGroups ActivityGroup[]
}

model ActivityGroup {
  id            String         @id @default(dbgenerated()) @map("_id") @db.ObjectId
  name          String
  organisations Organisation[]
}

prisma.organisation.findMany({
  take: 100,
  skip: 0,
  select: {
    id: true,
    name: true,
    activityGroups: true,
  }
})

Environment & setup

• OS: Mac OS
• Database: MongoDB
• Node.js version: 14.17.6

Prisma Version

3.2.1

[HannesArni]

I encountered the same error at query-engine/core/src/query_document/parser.rs:250:87

In my case I was trying to create a record with a 22 decimal integer for a column with type Int. Changing that column and the value to a string fixed the issue for me.

• Prisma version: 3.7.0
• Database: Postgres
• Node version: 16.11.1
• Os: Mac OS Big Sur

[mikerudge]

Can you please try this with a more recent version of Prisma to make sure this did not already get fixed in the meantime before we start to investigate? Thanks.

Oh my bad. I actually encountered this on the latest version but then tried previous versions back to 3.2 to see if it was a recent thing.