Parse Query Constraint Contained In Not Returning Objects

Question

I am trying to run this query however it is returning no objects. Any help?

    for (int arrayIndex=0; arrayIndex<[self.cards count]; arrayIndex++)
{
    NSString *senderId = [[deck objectAtIndex:arrayIndex]objectForKey:@"SenderId"];
    [list_of_sender_ids addObject:senderId];
}
PFQuery *query = [PFQuery queryWithClassName:@"User"];
[query whereKey:@"facebook_id" containedIn:list_of_sender_ids];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {

BHendricks · Accepted Answer · 2014-08-15 04:37:04Z

2

A couple of things that could be going wrong right off the bat: First of all, to query the user class, you shouldn't use

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

But instead,

PFQuery *query = [PFUser query];

Assuming your User class still returns PFUser objects. Another thing to make sure is right is the @"Facebook_id" key, and confirm in Parse that this is a top level key that you can see on your Parse User objects. Lastly, make sure @"SenderId" is also the right key on the objects in deck, since you seem not to be querying based on the same key that could cause the issue.

answered Aug 15, 2014 at 4:37

BHendricks

4,4936 gold badges36 silver badges60 bronze badges

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

4 Comments

coderlyfe Over a year ago

@"facebook_id" is the correct key name (column name) in my User table and @SenderId is a the right key on the deck object. However wouldn't the problem be that all the fields under the facebook_id column in the users table arent being checked accordingly with the array of sender_ids?

BHendricks Over a year ago

I'm not sure what you are asking here, but if those are the correct keys, then according to parse.com/docs/ios/api/Classes/PFQuery.html#//api/name/…: this should work. Did you try changing to a [PFUser query]?

coderlyfe Over a year ago

YES i just tested it again after changing it to [PFUser query] and it works! Thank you! Would you mind explaining why that was the issue?

BHendricks Over a year ago

Parse is pretty picky about it's queries, and the User class is somewhat special. From what I understand, this is just the way to generate a query on that special class.

Collectives™ on Stack Overflow

Parse Query Constraint Contained In Not Returning Objects

1 Answer 1

4 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Related