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iOS

Chris Holloway
Chris Holloway
2,427 Points
Posted by Chris Holloway
Chris Holloway
2,427 Points

Is it possible to Pre-populate a Core Data model?

I am working on a aviation app. One of the functions requires the device to locate and find the closest airport.

I'd like to preload my airport database into core data, is there a legit way to do this? I've done some looking and what I've found so far appears to be kludgy.

2 Answers

J Andrew Scott
J Andrew Scott
30,626 Points

What I have done in the past is essentially bundle a populated sqlite database into the project resources and copy it the the app's document directory on first launch. This tutorial is a little dated but it still works:

http://www.raywenderlich.com/12170/core-data-tutorial-how-to-preloadimport-existing-data-updated

Chris Holloway
Chris Holloway
2,427 Points
Chris Holloway
Chris Holloway
2,427 Points

Nice! So, this method is feasible for production code as well as development?

J Andrew Scott
J Andrew Scott
30,626 Points

I've used it on the app store and the performance impact is almost negligible. It doesn't require any file parsing or database access, just copying data on flash memory.