How do you update a CoreData entry that has already been saved in Swift?

Question

I\'m not sure what I\'m doing wrong here, but when I save the first time into coredata, it works just fine. When I try to overwrite that, it doesn\'t.

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Answer 1

There's a new feature called Batch Updates.

I think this article will help you:

http://www.bignerdranch.com/blog/new-in-core-data-and-ios-8-batch-updating/

Basicly what you do is use the NSBatchUpdateRequest instead of NSFetchRequest, filter the results with NSPredicate, change the value in the results, and save the data.

Another tutorial in swift:

http://code.tutsplus.com/tutorials/ios-8-core-data-and-batch-updates--cms-22164