CODEWITHSUNDEEP
iosdatabasecore-data
MendyK
MendyK

Reputation: 1488

How can I create a Core Data file before runtime?

I have a bunch of data that I want to store in a Core Data file. The problem is that It only gets created at runtime. How can I create it before, save it into my bundle, and then display it to the user?

Upvotes: 0

Views: 63

Answers (2)

andrewbuilder
andrewbuilder

Reputation: 3791

My preference is to use a property list (.plist) file that contains arrays and dictionaries of the "default data" I wish to preload, then on first run load that default data in.

I use code in my core data stack to check the plist file against existing default data and, in the case that I have updated the plist file with some additional default data (for subsequent production release), this is added.

I also use code in my core data stack to change or delete default data as necessary, but this is data specific.

Upvotes: 1

Phillip Mills
Phillip Mills

Reputation: 31016

I do this by running my app (or a utility written just for this purpose) in the simulator during development and populating it with its pre-set information. I then find the file on disk, put it in my project, and make sure it is included in the "Copy files" build phase.

At start up, I look for the file in the app bundle, and copy it to where CoreData expects it...that is, some writable location.

Upvotes: 2

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