gistfile1.m

    static NSDictionary *valueMap = @{giIdKey:@"_groupIncentiveId", giJobIdKey:@"_jobId", giPercentCompleteKey:@"_percentComplete",
        giPercentReservedKey:@"_percentReserved", giGoalsKey:@"_goals", giRewardsKey:@"_rewards"};

    for (NSString *key in valueMap) {
        [gi setValue:[d objectForKey:key] forKey:valueMap[key]];
    }