Realm on iOS: crash while creating nested object with primaryKey

Question

Can't create nested object with primaryKey: I have Media object with nested Location object and Comment object. In all these objects I've already implemented primaryKey and while I'm trying to create Media object, I get crash:

realm.add(media, update: true)

Can't create object with existing primary key value ...

By the way, the problem is with Comment object, but Location is ok, however, they are implemented similarly.

Answer 1

我找到了原因并且它的功能顺序错误。正确的顺序是将Media添加到Realm，然后将其分配给User：

realm.add(media, update: true)
currentUser.media.append(media)