如何从Parse.com获取单个键的所有值

Question

I'm trying to fetch all the names from my PeopleName class from Parse. It's not showing any build error, but I get a runtime error Error: field Name cannot be included because it is not a pointer to another object (Code: 102, Version: 1.2.17) .

Here is code. Any help?

PFQuery *query = [PFQuery queryWithClassName:@"PeopleNames"];
     [query includeKey:@"Name"];
     [query selectKeys:@[@"Name"]];
     [query findObjectsInBackgroundWithBlock:^(NSArray *results, NSError *error) {

     for (PFObject *object in results) {
        [self.boyNames addObject:[object objectForKey:@"Name"]];
    }
}];

Answer 1

[query selectKeys:@[@"Name"]]; is correct to limit the returned data to only the names. [query includeKey:@"Name"]; is not required as it is the way to include the destination objects at the other end of a relationship (which you don't have).

So, keep [query selectKeys:@[@"Name"]]; and remove [query includeKey:@"Name"]; and you'll get what you want.