Is there a way to sum the values entered into a table view cell without using Core Data? I am currently using Parse. I guess a better question would be how can I get the sum using Parse? I'm really scratching my head on this one. Hand holding may be required.
You can probably use the Key-Value Coding collection operators. Suppose the row data for the table are a bunch of instances of class
Entry and are collected in an
data. Further suppose each
Entry object has an
NSNumber property named
cost and this is what you want to sum. Then you can do so as follows:
NSNumber *sum = [data valueForKeyPath:@"@sum.cost"];
Just to be clear: this does require that the values you wish to sum are properties of the objects that are backing each row.