Adding objects to array NSXMlParser no data - xcode

Question

I'm trying to make a XML-parser that saves data from YR.no-API. The parser should add data to these two datastructures. My problem is when i try to add a WeatherTimeData object to my array in WeatherData, it seems like the objects doesnt get added, the following count always give me zero
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ([elementname isEqualToString:#"time"])
{
[self.weatherdata.timedata addObject:currentWeatherTimeData];
NSLog(#"amount of objects in timedata-array %d", [[self.weatherdata timedata] count]);
}
These are my two data-structures, i alloc weatherData in the following method
-(id) loadXMLByURL:(NSString *)urlString
{
_weatherdata = [[WeatherData alloc] init];
NSURL *url = [NSURL URLWithString:urlString];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
parser = [[NSXMLParser alloc] initWithData:data];
parser.delegate = self;
[parser parse];
return self;
}
Do i have to alloc the array inside of the weatherdata object?
WeatherData.h
#interface WeatherData : NSObject
#property (strong, nonatomic)NSString *town;
#property (strong, nonatomic)NSString *country;
#property (strong, nonatomic)NSMutableArray *timedata;
#end
WeatherData.m
#implementation WeatherData
#synthesize town = _town;
#synthesize country = _country;
#synthesize timedata = _timedata;
#end
WeatherTimeData.h
#interface WeatherTimeData : NSObject
#property (strong, nonatomic)NSDate *startTime;
#property (strong, nonatomic)NSDate *endTime;
#property (strong, nonatomic)NSString *iconSymbol;
#property (strong, nonatomic)NSString *windDirection;
#property (strong, nonatomic)NSString *windSpeed;
#property (strong, nonatomic)NSString *temprature;
#property (strong, nonatomic)NSString *preassure;
#end
WeatherTimeData.m
#implementation WeatherTimeData
#synthesize startTime = _startTime;
#synthesize endTime = _endTime;
#synthesize iconSymbol = _iconSymbol;
#synthesize windDirection = _windDirection;
#synthesize windSpeed = _windSPeed;
#synthesize temprature = _temprature;
#synthesize preassure = _preassure;
#end

Answer 1

This type of problem is classically because the object hasn't been allocated, and given Objective-C allows messages to be sent to nil the programmer doesn't notice.
I think it would be nice to be able to provide a runtime environment variable where such events are logged to stdout...
I would suspect that [WeatherTimeData init] isn't creating timedata and that's because you haven't provided an implementation for it; just using #sythensize isn't enough to create the objects.