Parse.com Query Pointer Value - php

Question

I'm having a problem getting the values from a pointer column. There is a column named "User" that points to the "_User" class in parse. I'm attempting to get the username associated with each row in my locations database. But for some reason, I'm getting a strange response.
Call to a member function get() on a non-object
My code is:
$query = new ParseQuery("SignoutDestination");
$query->includeKey("User");
// Limit what could be a lot of points.
$query->limit(100);
// Final array of objects
$signoutdestinations = $query->find();
foreach($signoutdestinations as $obj){
echo $obj->get("User")->get("username");
}
Has there been a change in the SDK or anything that could be causing this? Or am I doing something wrong?

Answer 1

I encountered the same issue and I kinda find a solution :
$query = new ParseQuery("SignoutDestination");
$query->includeKey("User"); // I didn't use it in my query
// Limit what could be a lot of points.
$query->limit(100);
// Final array of objects
$signoutdestinations = $query->find();
foreach($signoutdestinations as $obj){
$pointer = $obj->get("User");
// It retrieves a pointer to object, so you
// can only getObjectId() and specific fields
// like this
$pointer->fetch();
$pointer->getUsername();
// Now you're able to getUsername()
}
I hope it will help you, I would have post it as comment but couldn't due to my freshly created account.
EDIT: I changed the code with something I tried on my Parse and it worked, but it just ruins your requests ratio because of fetching, find a clever way to get Username just by querying _User and comparing ObjectId.
Indeed, with the includeKey() it should work as you written it up...