Easiest way to query nested optional realm objects in swift

Question

I am using Realm for Swift. I have two Realm objects structures like this:

class outerObject : Object {
   dynamic var innerObject : innerInfo?
}

class innerInfo : Object {
  dynamic var sortId = 5
}

I want to make a query that gets every outerObject where the innerInfo is not nil and sortId equals 3. Normally I would use something like:

realm.objects(outerObject).filter(predicate)

And then write a suitable NSPredicate but I do not hink that works with optionals. So what is the recommended method?

score 4 · Accepted Answer · answered Aug 31 '15 at 18:42

4

This query should work: realm.objects(outerObject).filter("innerObject.sortId = 3").

answered Aug 31 '15 at 18:42

jpsim

14,329
6
51
68

score -2 · Answer 2 · answered Apr 19 '20 at 03:59

-2

when innerObjc is nil, this will been broken. Expected object of type string for property '' on object of type '', but received: (null),the 2nd anwser is not the right anwser.

answered Apr 19 '20 at 03:59

kzhiquan

1
1

1

This doesn't answer the original question – Nikolai Shevchenko Apr 19 '20 at 05:48

Easiest way to query nested optional realm objects in swift

2 Answers2