On May 18, 2006, at 11:29 AM, Jesse Grosjean wrote:
> It seems that coredata sql stores can't be read or written from
> WebDAV volumes. It doesn't work with my app, or with the OutlineEdit
> demo app. Does anyone know of a workaround? If there is no work
> around what's the best way to test for this case so that I can give
> the user a more descriptive error message?
That is by design.
WebDAV is incapable of supporting non-atomic reads/writes. As such,
there is no useful reason -- and many reasons not to -- store a SQLite
database, through Core Data or otherwise, on a WebDAV based filesystem.
Use an XML or Binary store instead.
The following can be used to test FS type:
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
struct statfs fsInfo;
NSLog(@"Testing %s", argv[1]);
if (statfs(argv[1], &fsInfo) == -1) {
NSLog(@"Error %s", argv[1]);
exit(1);
}
if (fsInfo.f_flags & MNT_RDONLY) {
NSLog(@"Read only %s", argv[1]);
exit(0);
}
NSLog(@"Type %s", fsInfo.f_fstypename);
[pool release];
return 0;
}
