Core Data + iCloud: Find NSManagedObject across devices

Question

How do I find the same NSManagedObject object across 2 devices? I tried to save the [object objectID.URIRepresentation.absoluteString] but it doesn't seem to be consistent across stores ... when I load up [managedObjectContext objectWithURI] with the same URI on another device, it points to a different object.

I'm guessing the problem is that the 2 devices point to a different store on each device. So what would be the best way to make it consistent across both devices?

score 0 · Answer 1 · answered Feb 17 '12 at 22:36

0

It seems that your two objects were not synchronized correctly from the beginning. You can always simply include your own unique ID scheme and make sure duplicates are removed as required.

answered Feb 17 '12 at 22:36

Mundi

79,884
17
117
140

score 0 · Accepted Answer · answered Feb 29 '12 at 07:48

0

It seems that the 2 devices have two different stores, so the URIs won't match across devices. Creating your own GUID attribute, and fetching based on that GUID, is the only way to go.

answered Feb 29 '12 at 07:48

Z S

7,039
12
53
105

Core Data + iCloud: Find NSManagedObject across devices

2 Answers2