Has anyone come across this before? I've looked online and I think I
know the problem but the solution is evading me!
I have an NSManagedObject that represents a text file, the text itself
is saved to a text file and the file's attributes are stored in the
persistent store (much the same way Xcode works). The file has a non-
optional, transient property isEdited (default is NO) that gets
updated to YES when the text is edited and then set to NO when the
text itself is saved to the locations specified by the file's path
property. However if I want to save an individual file and then save
any changes to the object graph subsequent fetches with the predicate
@"isEdited == YES" does not return any other edited files.
So saving the store has turned all my file objects into faults.
However as all my files are in a source list, after saving one file
selecting one of the other files I know to be edited and then trying
to fetch again returns the selected file. Therefore the fault seems
to be fired by my tree controller and the isEdited value is correct.
In practice a user will edit multiple files and then save one of them,
then try to quit the program which tries to fetch any edited files and
throw up a dialog asking the user to save all the other edited files,
but as the other edited files are faults the fetch returns no edited
files and the program quits.
How can I work around this? I could always walk the tree and ask each
file if they're edited, but a fetch seems cleaner.
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