I'm stumped trying to write a predicate for "Recently Completed" tasks, i.e. show the task if it was completed within the last 7 days. I think I need to do something like this: "if NOW < dateCompleted + 7 days".
The dateCompleted is an attribute on the table, but I'm not sure how I'm supposed to get it's value and add 7 days to it from within the predicate. I guess I need to fetch the attribute value first before writing the NSPredicate, but how? I don't have access to the managedObject at this point.
This might be close the solution, but I can't figure out how to define 'oneWeek' and I don't think you can just add values when defining the predicate:
NSPredicate *pred = [NSPredicate predicateWithFormat:@"%@ < todoCompletedDate + %@", [NSDate date], oneWeek];