What is the way to add Parse objects into a NSMutableArray? - ios

Question

I have a mutable array named "eventnameArray". What i want is to add objects. This objects to add come from a Parse query.
This is the mutable array:
eventArray = [[NSMutableArray alloc]init];
This is the Parse query, which works.
PFQuery *query = [PFQuery queryWithClassName:#"Event"];
[query selectKeys:#[#"EventName"]];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
// The find succeeded.
NSLog(#"Successfully retrieved %lu scores.", (unsigned long)objects.count);
// Do something with the found objects
[eventnameArray addObject:[objects valueForKey:#"EventName"]];
NSLog(#"%#", eventnameArray);
} else {
// Log details of the failure
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
I suspect the problem is in the addObject call, which is not being performed correctly, or maybe in the whole PFQuery structure.
To show the array in the tableviewcell, i do this:
cell.label.text = [self.eventnameArray objectAtIndex: [indexPath row]];
EDIT :
I replaced addObject for addObjectsFromArray like this:
[eventnameArray addObjectsFromArray:[objects valueForKey:#"EventName"]];
But i still can't get it to work.
EDIT 2:
I replaced EDIT 1 with :
for (NSObject *object in objects){
NSString *name = [object valueForKey:#"EventName"];
[eventnameArray addObject:name];
}
But the label still doesn't show anything.
EDIT 3 :
The solution was just a matter or reloading data like this:
[self.tableView reloadData];

Answer 1

I guess what you're looking for is to replace addObject: with addObjectsFromArray: because parse returns an array to you so calling valueForKey:#"EventName" will return an array and you want to add all of those names to your eventArray.
So:
[eventnameArray addObjectsFromArray:[objects valueForKey:#"EventName"]];

Answer 2

You probably want to add the EventName of each object in the objects array to your eventnameArray, not the "EventName" value of the objects array.
Try this instead:
for (NSObject *object in objects){
NSString *name = [object valueForKey:#"EventName"];
[eventnameArray addObject:name];
}
//EDIT: Addition for a complete fix. Reload the tabeview afterwards.
[self.tableView reloadData];