Re: Core Data getting many data from relationship.
Re: Core Data getting many data from relationship.
- Subject: Re: Core Data getting many data from relationship.
- From: Marcus Zarra <email@hidden>
- Date: Fri, 6 Oct 2006 17:20:50 -0600
id result = [aDepertment valueForKey:@"employees"];
NSLog(@"Result is %@", [result class]);
You will probably get an NSSet back if it is a to-many relationship.
The logging will confirm what you are getting back.
Marcus S. Zarra
Zarra Studios LLC
Simply Elegant Software for OS X
www.zarrastudios.com
On Oct 6, 2006, at 2:28 PM, David Alter wrote:
I think this is a very basic question and I'm just not finding the
answer. I want to get the many data for a given relationship. Lets
say I have a Department and I want to get all its Employees.
Department has a relationship called employees. Is this what I do?
id result = [aDepertment valueForKey:@"employees"];
What do I get back? Is it an array, a set, or some other kind of
container?
Should I be using mutableArrayValueForKey from NSKeyValueCoding
protocal?
I have been reading the Core Data docs and all the examples show
situations that return only one object.
thanks for the help
-dave
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