Parse query retrieve pointer columns

Question

I have a Filter class which has a pointer to a user in my User class. I'm wondering how can I get the Filter object in the Filter class which is equal to the [PFUser CurrentUser] and then get both column values from the User and Filter class

PFQuery *filterQuery = [PFQuery queryWithClassName:@"Filter"];
filterQuery.limit = 1;
[filterQuery whereKey:@"userId" equalTo:[PFUser currentUser].objectId];
[filterQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
     if(!error){                                
         NSLog(@"%@", objects);                                                                                                         
     }                                                     
}];

Fogmeister · Accepted Answer · 2014-08-21 14:10:18Z

1

You just use the object itself...

PFQuery *filterQuery = [PFQuery queryWithClassName:@"Filter"];
filterQuery.limit = 1;
[filterQuery whereKey:@"userId" equalTo:[PFUser currentUser]]; //no need to put objected here.
[filterQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
     if(!error){                                
         NSLog(@"%@", objects);                                                                                                         
     }                                                     
}];

As long as the userId field is a pointer to the _User object then this will work.

If userId is a pointer to _User then you can add...

[filterQuery includeKey:@"userId"];

This will then populate the userId object of the Filter objects with data when they are sent down. If you don't put that line then you will just get the objectId in the userId object.

However, I'm not sure you've done it as a Pointer. Can you confirm that it definitely is.

You should have this in the Data Browser table for Filter...

enter image description here

(follower will say userId on yours)

edited Aug 21, 2014 at 14:10

answered Aug 21, 2014 at 14:01

Fogmeister

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3 Comments

user3926776 Over a year ago

don't i need to include keys?

user3926776 Over a year ago

i can confirm that in my Filter class their is a column which is a pointer to _User. But how do i retrieve the data from the User column i've added your code.

Fogmeister Over a year ago

@FrederikHagelund you logged objects. You should be able to see from there... Something like this... objects[0][@"userId"][@"userName"];

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