Re: Store file properties alongside coredata?
Re: Store file properties alongside coredata?
- Subject: Re: Store file properties alongside coredata?
- From: Jim Correia <email@hidden>
- Date: Wed, 28 Jun 2006 08:46:49 -0400
On Jun 28, 2006, at 1:48 AM, Justin Bakse wrote:
I am looking for some general direction on how to go about storing
a few peices of information in the files created by my core data
document based app. I've done a fair amount of objective c and
cocoa but the core data api is new to me, as is NSCoder and
NSDocument, and in general that area, but I'm reading up.
What I would like to do is save a few key value pairs, mostly
document specific preferences into a core data document. For
example, there are some table views of an entity, and I'd like to
remember what column was sorted, and what items were selected for
next time. These seem like information that might be semi handled
in the API, but there might be others that are more application
specific.
Again, I'm kind of looking for a general macro view, of what to do
here.
Step 1: Decide if they really are part of your data model, or
auxiliary metadata.
Step 2: If they really are part of the data model, just store them
there :-)
If they are metadata, you can put them in the metadata area of the
store (via the metadata methods on NSPersistentStoreCoordinator.)
Jim
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