Core data stores metadata as well as data in the sqlite3 file and
follows a very specific naming convention for the regular data tables
and columns. You'd probably be better off writing a small migration
utility to import the data you need than to try create a sqlite3
database in the right format. Also, if you use this mechanism, when
you distribute your app, none of that data will go with it.
Why don't you move out your sqlite3 file and let it create a new one,
then go in and look at the tables and structure, and you'll get an
idea of what I'm talking about.
HTH
Jeff
On Mar 31, 2008, at 12:45 PM, Scott Guyer wrote:
Hi,
I'm just learning core data and have already stumbled on
something. I created a CD application using the XCode template.
I've created a sqlite3 .db file with data and a matching core data
model in xcode. My code fails here...
url = [NSURL fileURLWithPath: [applicationSupportFolder
stringByAppendingPathComponent: @"my.db"]];
persistentStoreCoordinator = [[NSPersistentStoreCoordinator
alloc] initWithManagedObjectModel: [self managedObjectModel]];
if (![persistentStoreCoordinator
addPersistentStoreWithType:NSSQLiteStoreType configuration:nil
URL:url options:nil error:&error]){
[[NSApplication sharedApplication] presentError:error];
}
with an error saying that the db file cannot be opened because it is
not in the right format. "The file might be corrupted, truncated,
or in a different format than you expect." That's quite odd to me,
since I can interact with that db file on the command line using
sqlite3 just fine. Anyone have any ideas/suggestions?
Much appreciated!
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