Number is not a subtype of Null

Help
1

A frustrating error.

Number is not a subtype of Null

What does that mean?

image
image848Ă—640 46 KB

2

Do you have field definitions in your collection schema?

Was there any more to the error message? The image cuts off the bottom of the shell, so just making sure.

I agree this is odd. Another way to phrase the error should be “Expected type Null, encountered Number”. I don’t know why that would be the case. That’s why I am asking about the schema.

3

Yes, thanks, this is the schema

collection Message {
  readLimit: Int
  content: String
  key: String
  
  ttl_days 3
  unique [.key]
  
  index by_key {
    terms [.key]
  }
}

Incidentally, I got around this by I think casting to any type:

let doc: Any = Message.by_key("_yju2kq0rn").first()
let n: Int = doc!.readLimit
if (doc!.readLimit == 1) {
    // need to delete because now it is at 0
    doc!.delete()
    doc { content, key, readLimit }
} else {
    doc!.update({
        readLimit: n! - 1
    }) { content, key, readLimit }
}
4

Thanks for the additional info! This definitely looks like an issue on our end. I’ve created an internal issue for our engineers to prioritize a fix.

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5

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