adding a field to database without crashing the existing appstore app

Question

I have a published app in the appstore. Recent changes to the app require me to add an extra field in the CoreData db.

If i do this without altering the other fields, will the update be succesful?

If not, how can i add a field to the db without damaging the app for the clients that already had the app?

score 1 · Accepted Answer · edited May 23 '17 at 11:53

1

You need to use Core Data Migration to do this. You should be able to do it with Lightweight Migration, which means it can be done automatically.

This is covered very well in a number of tutorials and examples. Here is a link. Look at the accepted answer to that question.

Here is a tutorial that is a little easier to digest.

I have used automatic lightweight migration, and it is painless for the type of change you are describing.

edited May 23 '17 at 11:53

Community

answered Oct 06 '11 at 13:23

Jim

Thank you Jim! I will look at the links and come back with a feedback :) – Alex Oct 06 '11 at 13:32
I have added some more links to my answer. It really is straightforward to do. Good luck. – Jim Oct 06 '11 at 13:37

1 Answers1