Re: counting managed objects of a certain type
Re: counting managed objects of a certain type
- Subject: Re: counting managed objects of a certain type
- From: Daniel Child <email@hidden>
- Date: Wed, 09 Jul 2008 11:08:59 -0400
Somehow I thought a predicate was mandatory. Simply setting the entity
works.
Thank you.
On Jul 9, 2008, at 2:34 AM, mmalc crawford wrote:
On Jul 8, 2008, at 11:16 PM, Daniel Child wrote:
NSManagedObjectContext *moc = [self managedObjectContext];
NSEntityDescription *entityDescription = [NSEntityDescription
entityForName:@"Employee" inManagedObjectContext:moc];
NSFetchRequest *request = [[[NSFetchRequest alloc] init]
autorelease];
[request setEntity:entityDescription];
....but then goes on to talk about various predicates (like "where
salary is over 10000").
I simply want "all employees".
I've looked through the documentation and found
"countForFetchRequest: error:"
but that still leads the question of what kind of request asks for
"all objects of a certain type".
What do you think happens if you don't set a predicate?
Did you try it?
mmalc
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