CODEWITHSUNDEEP
iphoneobjective-cioscore-data
Csabi
Csabi

Reputation: 3043

Core data problems on real device

I had a problem in my simulator - when I want to edit the table in core data or create a new table the program which was using the database fails every time I start it. So I google the problem and I found the solution - every time I want to change something in my tables I have to manually delete my database. So it works fine but nowadays I get the license for testing it on real device, but I do not know how will it works on real device. I work for company and maybe the database will be expanding with some new tables, and I really do not know how to prevent it in real device. I admit it is a strange problem, but can you help me?

Upvotes: 1

Views: 241

Answers (1)

Elias
Elias

Reputation: 519

If your change your Core Data model during testing, you can easily delete your app from the simulator/device. In this case Xcode will install a new database on your simulator/device when you re-install the app and your app won't crash.

If the app has already been released in iTunes and you want to change the database, you have to implement data migration in your app.

Hope I understood your question right. Please ask if you have any more questions.

Upvotes: 2

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