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Re: Importing to core data persistent document
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Re: Importing to core data persistent document


  • Subject: Re: Importing to core data persistent document
  • From: Gideon King <email@hidden>
  • Date: Thu, 5 Aug 2010 13:59:27 +1000

Yes, I did think of putting it elsewhere, but I would have thought the problem would be the same. Say I overrode the NSDocumentController openDocumentWidhContentsOfURL:ofType:error: and had that do the conversion to my native document type, then call the NSDocumentController implementation, it would load the native format file, but I would still have a document that would have a name assigned to it in the persistent store, and if I then changed the URL to nil in the document, I'd be back to square one. The document architecture would be thinking of it as a new document, and the persistent store would be thinking of it as an existing document.

Gideon

On 05/08/2010, at 1:17 PM, Kyle Sluder wrote:

>
> Ouch, this sounds like a bad idea. I would expect -fileURL to return something meaningful after -readFromURL:ofType:error:.
>
> Have you thought of putting this conversion logic in a subclass of NSDocumentController instead? That way you don't violate NSDocument's expectation of being associated with the file it was opened from.
>
> --Kyle Sluder

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References: 
 >Re: Importing to core data persistent document (From: Gideon King <email@hidden>)
 >Re: Importing to core data persistent document (From: Kyle Sluder <email@hidden>)

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