Core Data: NSFetchRequest sorting by count of to-many relationship
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by Ben Reeves
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Published on 2010-03-15T15:27:52Z
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2010/03/15
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Say I have an parent entity, each of which have a number of children. I want to get all the parents sorted by their number of children. Something similar to the following pseudo code:
NSEntityDescription * entity = [NSEntityDescription entityForName:@"Parent" inManagedObjectContext:managedObjectContext];
[[NSSortDescriptor alloc] initWithKey:@"children.count" ascending:NO];
//Execute request
Is there a way construct a fetch like this using core data?
Thanks, Ben
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