Realm-cocoa: Add a method to create an empty Results

[mrh-is]

Goals

I have some table provider classes that conform to UITableViewDataSource/Delegate and are powered by Realm. These classes currently use a var objects: Results<MyObject>? variable to hold onto the list of objects. This list is provided by the VC before the table is displayed.

It's unfortunate that I need to use an optional here, but there is no way to provide a default value. If they were using a List instead, I could use var objects = List<MyObject>() and create a dummy list.

It would be nice if there were a method that made an empty Results, e.g., var objects = Results<MyObject>() (or whatever y'all think is best).

I could yolo and use an IUO, but that's Bad Swift™.

Expected Results

There's some way to generate a Results object without actually putting any data inside.

Notes

Maybe this is just a bad way to power tables off of Realm? What's the best practice here?

[jpsim]

Using an IUO isn't bad swift, that's exactly the use case it's intended to serve.

If you really need an empty Results, you can do realm.objects(Model.self).filter("FALSEPREDICATE"). Unlike List and Object subclasses, Results can never be unmanaged.

[mrh-is]

Ah, hmm. Ok! An IUO it is then! Thanks!