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iOS

Liam Brady
Liam Brady
9,713 Points
Posted by Liam Brady
Liam Brady
9,713 Points

'Retrieving and Viewing Data from Parse' Code Challenge

Challenge: We saw that we can get specific objects from the Parse back-end using 'getObjectInBackgroundWithId:block:'. Pass that message to the 'query' variable to retrieve an object with the ID "1" (it's an NSString). Just pass in 'nil' for the block parameter in this step (we'll fix that next).

My Code: 

PFQuery *query = [PFQuery queryWithClassName:@"Move"];

// Insert code here!

[query getObjectInBackgroundWithId:@"1" block:nil {

} ];

I've tried many variations on this theme and just can't seem to get in. I'm sure it will be obvious where I've got wrong once someone points it out.

2 Answers

Erik Montes
Erik Montes
3,717 Points
Erik Montes
Erik Montes
3,717 Points

It says Just pass in 'nil' for the block parameter in this step (we'll fix that next). which I see you did, but then you added curly brackets { }. A block is like this ^{ }, but it says to just set it to nil. The curly brackets don't make sense for nil as it is not a block. So just remove the curly brackets and you should be fine.

Liam Brady
Liam Brady
9,713 Points
Liam Brady
Liam Brady
9,713 Points

Thank you very much, Erik. That was exactly what I needed!

You look like you're making great progress on Treehouse!

Thank you again.