SetRelation crashes the app, error: "terminating with uncaught exception of type Fault"

General
1

Hello, I have a class “Record” which have 2 relationships, “User” and “Oversight”, I’m doing this:


let dataStore = self.backendless.data.of(Record.ofClass())
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
 let dataStore = self.backendless.data.of(Record.ofClass())
 if let savedUserRecord = dataStore.save(userRecord) as? Record {
 dataStore.setRelation("oversight", parentObjectId: savedUserRecord.objectId, childObjects: [oversight])
 dataStore.setRelation("user", parentObjectId: savedUserRecord.objectId, childObjects: [user])



 dispatch_async(dispatch_get_main_queue()) {
 success()
 }
 }
}

I’m using this setup:

  • Xcode 8.0
  • Swift 2.3
  • pod ‘Backendless’, ‘~> 4.0’
    The setRelation method is giving me an strange error and the app crashes. I don’t have constraints in those related objects. The error is this: “libc++abi.dylib: terminating with uncaught exception of type Fault”

Any idea of what could be wrong?

Thank you!

2

Please provide your APP_ID.

Regards, Olga

3

APP_ID: B5722E16-56D9-8786-FFAA-5690E006ED00

Thanks!

4

First of all - you are able to handle the Fault exception of sync methods with @try -@catch. Please check this doc for more info.
Then, please rename your description column of the Record table, because getter for ‘description’ with Objective-C selector ‘description’ conflicts with getter for ‘description’ from superclass ‘NSObject’ with the same Objective-C selector (I’ve tested in Xcode 9, Swift 4).
Secondly, you can use async methods without dispatch if you want. Please check this doc - you can find the async methods examples there.
Also, please notice that childObjects is the array of objectIds, not objects.

Regards, Olga

5

Thank you Olga for your prompt response! My error was that I was using the object directly instead of the object id, I did the migration for Android last week and there I was using the object instead of the object id and probably that mixed me up.

About the async methods, I know about them, actually I’m using them but I was trying different ways to find the error.

Thank you very much!

6

Glad my answer helped you!

Regards, Olga