Re: MVC....brief question
Re: MVC....brief question
- Subject: Re: MVC....brief question
- From: Michael de Haan <email@hidden>
- Date: Tue, 7 Jul 2009 07:23:47 -0700
On Jul 7, 2009, at 7:16 AM, Keary Suska wrote:
On Jul 7, 2009, at 6:31 AM, Michael de Haan wrote:
+ (NSSet *)keyPathsForValuesAffectingBmi /* "bmi" is model Ivar */
{
return [ NSSet setWithObjects:@"weight", @"height", nil];
}
My question. I included the above method in the model, as this is
the only place available. I just wonder if this is correct?
The only appropriate location for the method is the object that has
all of the referenced properties.
Of course! :-)
(in a sense it "enables" the getter "bmi". )
Not in any sense, really. It simply tells all observers of "bmi"
that "bmi" has changed every time "weight" or "height" changes.
Beginning to really appreciated the "beauty" of cocoa...but it's a
steep learning curve!!
Thanks again for clarifying.
Michael.
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