How to retrieve value from second level pointer in Parse for iOS using Objective-C

Question

I have following structure in Parse

Class_A

objectID
b_ID (this is a pointer having value as objectID to B)

Class_B

objectID
c_ID (this is a pointer having value as objectID to C)
someParameterinB

Class_C

objectID
someParameterinC

I am using following code to retrieve;

PFQuery *query = [PFQuery queryWithClassName:@"Class_A"];
    [query includeKey:@"b_ID"];
    [query includeKey:@"Class_B.c_ID"];

    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (!error) {
            // The find succeeded. The first 50 objects are available in object
            self.myArray = [[NSArray alloc] initWithArray:objects];
        } else {
            // Log details of the failure
            NSLog(@"Error: %@ %@", error, [error userInfo]);
        }
    }];

Now when it comes to display in UITableViewCell, I am using following code:

PFObject *aObject = [self.myArray objectAtIndex:indexPath.row];

PFObject *bObject = [aObject objectForKey:@"b_ID"];

PFObject *cObject = [bObject objectForKey:@"c_ID"];

I am getting issue with cObject. Can you please help?

Wain · Accepted Answer · 2015-06-20 19:24:31Z

2

Replace these lines:

[query includeKey:@"b_ID"];
[query includeKey:@"Class_B.c_ID"];

with

[query includeKey:@"b_ID.c_ID"];

and the query response will include both B and C objects.

answered Jun 20, 2015 at 19:24

Wain

119k15 gold badges132 silver badges152 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to retrieve value from second level pointer in Parse for iOS using Objective-C

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related