Re: Best time to add observers for managed object?
Re: Best time to add observers for managed object?
- Subject: Re: Best time to add observers for managed object?
- From: mmalcolm crawford <email@hidden>
- Date: Sun, 10 Jul 2005 14:00:37 -0700
On Jul 10, 2005, at 12:27 AM, Charilaos Skiadas wrote:
I have an Entity called GradeType, with a boolean attribute called
isLetter. In my UI I have a popup button, which I want to populate
with the gradeType objects that have isLetter false.
To do that, I set up method numericGradeTypes in my MyDocument
class, which uses a fetch request to return an array of these
objects (actually, it returns an array of the attributes "name" of
these objects). Then I bound the contentValues of the popup to
File's owner (MyDocument), with keypath "numericGradeTypes". This
work and populates the popup with the right stuff.
Problem is now, that I need somehow to observe changes in isLetter,
so I thought what I should do is have my current document observe
each GradeType object for changes to their isLetter attribute.
That's what I am doing now in the awakeFromInsert call. But this
seems to miss the objects that are loaded from a saved document.
Sorry, I'm not sure what you're observing in awakeFromInsert? Is
this implemented in the GradeType entity, or another entity related
to GradeType?
mmalc
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