CODEWITHSUNDEEP
cocoansdocumentnsdocumentcontroller
taco
taco

Reputation: 839

Cocoa NSDocument: getting autosave to work

Documentation simply states that setting setAutosavingDelay to anything > 0 on the shared doc controller should do it, but after calling 

[[NSDocumentController sharedDocumentController] setAutosavingDelay:2.0];

in my controller, autosave doesn't seem to work: I neither see anything in ~/Library/Autosave Information/, nor is

[[[NSDocumentController sharedDocumentController] currentDocument] autosavedContentsFileURL]

initialized.

Note that in my app, normal loading and saving work fine (keyedarchivers, nscoding-based class for my docs, etc).

Upvotes: 5

Views: 3356

Answers (2)

Graham Perrin
Graham Perrin

Reputation: 534

Some people find that the directory ~/Library/Autosave Information is owned by root, and so files can not be written therein. See for example http://discussions.apple.com/thread.jspa?threadID=2252306

I don't know how the bug arises but I was bitten by it -- the directory was created 2010-06-17 12:19 and I assume that the permissions were wrong from that moment.

Upvotes: 2

Mike Abdullah
Mike Abdullah

Reputation: 15013

Have you overridden -updateChangeCount: at all? I'm pretty certain that Apple's implementation is the code that starts up the autosave timer. Also, what if you experiment with a longer timer?

Upvotes: 8

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