Collection helpers in React containers sometimes missing

Question

As far as I understand, collection helpers are implemented using transforms on documents. However, sometimes my helpers seem to be missing.

In foo.js I define:

owner() {
  const rel = FooBarRelations.findOne({
    fooId: this._id,
    isOwner: true,
  });

  if (rel) {
    return rel.barId;
  }
}

In my container. I subscribe to a composite publication (reywood:publish-composite) and when sub.ready() I fetch: fooDoc = Foo.findOne(fooId).

The returned document does not have owner property, sometimes. fooDoc.owner is not a function.

Any ideas?

Answer 1

I discovered that I'm using low level publication code and set fooDoc.owner manually.

This causes fooDoc.owner to be a string sometimes and hence the error message is thrown.