Re: Error with proxy objects and to-many relationships with Core Data
Re: Error with proxy objects and to-many relationships with Core Data
- Subject: Re: Error with proxy objects and to-many relationships with Core Data
- From: mmalcolm crawford <email@hidden>
- Date: Sun, 26 Feb 2006 23:28:24 -0800
On Feb 26, 2006, at 8:23 PM, Sean Willson wrote:
On 2/26/06, mmalcolm crawford <email@hidden> wrote:
Fails with the same error as before. Since I'm in an NSArrayController
object is there anything special I need to do to create the object?
I've
tried using the [self newObject] method as well as the one
described before.
It's not clear exactly what you're actually trying to achieve.
Could you state what are the entities, what are the object
controllers, and how they are linked?
I guess what I'm looking for really is something like a core/data/
bindings best practices. When you want to say use more than 1 nib
and propigate one or more selected objects across that boundary,
what types of patterns or best practices are there.
In general it's not clear to what extent issues related to "nib
boundaries" are any different for bindings than they are for non-
bindings applications. The abstract issue is, can you form a key-
path to an object in another nib. You face basically the same issue
with or without bindings. The principal "complicating" factor with
bindings is, is the property you're interested in KVO-compliant.
Specifically related to Core Data, most of the relevant best
practices are now summarised in the Performance article <http://
developer.apple.com/documentation/Cocoa/Conceptual/CoreData/Articles/
cdPerformance.html>. Most other issues are covered in other specific
articles. If there's something that is not addressed, again please
file an enhancement request.
mmalc
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