Hi Gustavo,
How about setting the sort descriptor’s ascending to NO, and limit the number
of fetched objects to one? Something like this…?
[request setSortDescriptors:[NSArray arrayWithObject:[NSSortDescriptor
sortDescriptorWithKey:@"date" ascending:NO]]]; // descending = arranged from
largest (latest)
[request setFetchLimit:1];
-ev
On May 15, 2011, at 18:02, Gustavo Pizano wrote:
> Hello all.
>
> I have a Entity A that has a to-many relationship. to B
>
> Now I need to get the latest B of A.
>
> I was reading NSFetchRequest, and NSPredicate, for NSPredictate I could use
> something like
>
> predicate = [NSPredicate predicateWithFormat:@"birthday > %@", referenceDate];
> filteredArray = [array filteredArrayUsingPredicate:predicate];
>
> but the operator is a comparison, I wish to know if its possible to fetch
> the object with he latest date without having to looping through the objects
> manually and comparing the dates.
>
> And NSFetchRequest will fetch me on the whole table of B.
>
>
> I know its silly question but I hadn't found the way..
>
> thanks
>
>
> Gustavo
>
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