I would like to know if the below question is possible using NSComparator
or not?
I have two arrays; both hold data models. I have a property named rank in the data model. Now I want to compare both arrays and want to know if one of them holds higher ranked data models.
If Yes I would like to get NSComparisonResult = NSOrderedAscending
.
By the way I'm using another approach here: is "total of each data Model's rank in array and if the total is greater than second array's data Model's total rank."
Yes, it would look something like this:
NSArray *someArray = /* however you get an array */
NSArray *sortedArray = [someArray sortedArrayUsingComparator:^(id obj1, id obj2) {
NSNumber *rank1 = [obj1 valueForKeyPath:@"@sum.rank"];
NSNumber *rank2 = [obj2 valueForKeyPath:@"@sum.rank"];
return (NSComparisonResult)[rank1 compare:rank2];
}];
(updated to show actually using the comparator)
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