On Jun 3, 2009, at 5:12 PM, Ulai Beekam wrote:
I have an NSArrayController that, at the request of the user, can be
given a new fetch predicate. To do that I use the setFetchPredicate:
method. How can I detect when this predicate has been applied and
the appropriate fetching is done? I have not come across any
delegate method for it.
I suspect that this is made tricky because of the following quote
from the docs under the fetch: method of NSObjectController (which
by the way is a superclass of NSArrayController):
"Beginning with Mac OS X v10.4 the result of this method is deferred
until the next iteration of the runloop so that the error
presentation mechanism can provide feedback as a sheet."
So the problem is that it finishes somewhere in the next runloop
iteration, making it harder to do some custom things after it
finishes.
There isn't any way that I know that is more work than it is worth.
Better to do the fetch yourself.
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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