Fwd: CoreData NSPersistentDocument Tutorial question
Fwd: CoreData NSPersistentDocument Tutorial question
- Subject: Fwd: CoreData NSPersistentDocument Tutorial question
- From: Alessandro Pistocchi <email@hidden>
- Date: Wed, 12 Sep 2007 15:00:38 +0200
I am sorry, I am posting my questions again since I didn't get any
answer. Please, tell me if they are not relevant or if there is
something wrong with them.
Alessandro
Da: Alessandro Pistocchi <email@hidden>
Data: 11 settembre 2007 10:53:39 GMT+02:00
A: email@hidden
Oggetto: CoreData NSPersistentDocument Tutorial question
Hi everybody,
I am evaluating CoreData and I tried the NSPersistentDocument
Tutorial. I found the bug with revert and I looked at your archives
where it says basically to adopt the mediator pattern in order to
get rid of that bug.
Is there another way, using the same strategy described in the
tutorial (i.e. having an instance variable in the document) ?
Besides, I noticed that undo/redo has a bug when deleting or
cutting entities: if I delete or cut some objects, and then perform
undos until I get to the saved version of the document (or to the
unsaved emtpy document if I started from an empty one), the window
document changed status remains active.
This is not just an aesthetic anomaly: if I add some objects to the
document, save the doc, delete something and perform undo, I find
that the document changed is wrong.
It seems that the change count is 1 more than the correct value.
Did anybody notice the same? Is there a solution to it?
Thank you,
Alessandro
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