Re: Versioning and CoreData
Re: Versioning and CoreData
- Subject: Re: Versioning and CoreData
- From: Ondra Cada <email@hidden>
- Date: Mon, 1 May 2006 21:49:18 +0200
Uli,
On 1.5.2006, at 21:24, Uli Kusterer wrote:
I just created a CoreData project and a test document, then added
some fields to the model, and then opened the document again. This
worked, which goes completely against what the CoreData docs on
versioning say. Is this a quirk of the XML store, or did I overlook
something in the docs and adding optional attributes to a store
doesn't cause versioning problems? This would be very handy because
it's the most common update to a file format.
Haven't tested myself (caveat!), but I am comparatively positive this
is something which just happens to work with XML (for that is
essentially a bunch of NSDictionaries and you can ask a dictionary
for a non-existing key, and get a valid nil), but does not with SQL
(for you can't ask for a non-existing column).
---
Ondra Čada
OCSoftware: email@hidden http://www.ocs.cz
private email@hidden http://www.ocs.cz/oc
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