gistfile1.txt

let entity = NSEntityDescription.entityForName("Fruits", inManagedObjectContext: context)!
        fetchRequest.entity = entity
        fetchRequest.sortDescriptors = [sortTitle]
        ex.expressionResultType = .DecimalAttributeType
        fetchRequest.propertiesToFetch = ["colors"]
        fetchRequest.propertiesToGroupBy = ["colors"]
        fetchRequest.resultType = .DictionaryResultType
        
        let matchingObjects = try! context.executeFetchRequest(fetchRequest) as AnyObject
        self.expenseCategory = matchingObjects
        
        return fetchRequest
    }