iPhoneOS Core Data migration: moving something from an entity into a file
- by Tim Sullivan
I have a scenario where I'm moving the contents of a blob stored in a core data entity into a file. I need a way to export that data during a migration, where I know the entity that's being converted and save the blob to a file, writing the location of that file into the converted entity's appropriate attribute.
I can't seem to find a way to do…