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iOS

Posted by Julian Bucci
Julian Bucci
3,656 Points

Passing PFObject to multiple view controllers using NSNotification

Hey guys! I have a Query that is passing a PFObject called "sampleGoal".

The Query is created in my QueryViewController (this is a PFQueryTableViewController) and I am passing the PFObject "sampleGoal" from another viewController using an NSNotification.

-(PFQuery *)queryForTable {

PFQuery *commentQuery = [PFQuery queryWithClassName:self.parseClassName];
[commentQuery whereKey:@"ActivityGoalKey" equalTo:self.sampleGoal];
[commentQuery whereKey:@"ActivityTypeKey" equalTo:@"ActivityTypeComment"];
[commentQuery includeKey:@"ActivityFromUserKey"];
[commentQuery orderByAscending:@"createdAt"];

return commentQuery;

}

I was told that my problem is that I am not successfully passing the PFObject "goal" to my QueryViewController. I receive an error telling me that self.goal is null.

How can I successfully pass a PFObject created in one viewController to multiple viewControllers using NSNotification?

Below is my Notification code

created notification in button:

-(void)commentGoal:(id)sender {

NSLog(@"you clicked on button %@", sender);
[[NSNotificationCenter defaultCenter]
 postNotificationName:@"CommentPressed"
 object:self];

}

received notification here:

-(void)receivedGoalNotification:(NSNotification *)notification {

QueryViewController *queryVC;
queryVC.sampleGoal = notification.object;

}