magicalpanda/MagicalRecord — pull request #634 by tonyarnold (2014-01-01 03:16:33+00:00)
Title: [WIP] Add support for aggregate operations grouped by an attribute

Allows queries like:

```objective-c
NSArray* caloriesByMonth = [CTFoodDiaryEntry aggregateOperation:@"sum:" onAttribute:@"fatCalories" withPredicate:predicate groupBy:@"month"];
```

This supersedes #113 and #457, and requires tests before it can be merged.

- [ ] Add tests