Re: Core Data app saving zero length files

FROM : Ben Trumbull
DATE : Sun Nov 04 01:01:39 2007

>> I've been able to re-pro this with a bare bones core data document
>> app for the both the XML store and the binary store, the SQLLite
>> store seems to be ok.
>> You can download the re-pro case from http://www.pocketsoap.com/osx/emptyFile.zip
>> run it, enter some text, select save, and choose either XML or
>> binary format. look at the file, it'll be fine. now select save
>> again, now the file will be 0k long. (radar #/5575683)
>>

> That appears to be a genuine, rather unpleasant, bug.  Thanks for the
> report.


This bug affects subclasses of NSPersistentDocument using a store 
other than SQLite when saving "no changes" on 10.5.

Malcolm has posted some workarounds, which I hope will carry people 
through until we can fix this.

This bug does not affect non-document based Core Data applications.

- Ben