Question

I want to merge two NSDictionary in one NSDictionary.
my first DIctionary

BreakFast Dates Dic {
    "2012-07-24" = "27";
    "2012-08-03" = "98";
    "2012-08-06" = "4203";
    "2012-08-23" = "0";
    "2012-08-24" = "0";
    "2012-09-11" = "36";
    "2012-09-19" = "450";
    "2012-09-24" = "36";
    Goals = 3;
}

my second Dictonary

Dinner Dates Dic {
    "2012-08-03" = "100";
    "2012-08-27" = "0";
    "2012-09-19" = "270";
    Goals = 4;
}

i want to merge both dictionary into one. like if in breakfast i have “2012-09-19” and same date i have in dinner. i want to separate both values by comma (,) .
my resultant dictionary should be like this.

combine {
    "2012-07-24" = "27,0";
    "2012-08-03" = "98,100";
    "2012-08-06" = "4203,0";
    "2012-08-23" = "0,0";
    "2012-08-24" = "0,0";
    "2012-09-11" = "36,0";
    "2012-09-19" = "450,270";
    "2012-09-24" = "36,0";
    Goals = 3,4;
}

Answer 1

NSMutableDictionary *combined = [objectDelegate.dataBreakFastSummary mutableCopy];
    for(NSString *key in [combined allKeys])
    {
        NSString *breakfastDate = [objectDelegate.dataBreakFastSummary valueForKey:key];
        NSString *dinnerDate = [objectDelegate.dataDinnerSummary objectForKey:key];
        if(dinnerDate){
            [combined setObject:[NSString stringWithFormat:@"%@,%@",breakfastDate, dinnerDate] forKey:key];
            } else {
                [combined setObject:[NSString stringWithFormat:@"%@,0",breakfastDate] forKey:key];
                }
    }
    NSLog(@"Combine %@",combined);