Objective-C: fetchManagedObjectsForEntity problem
- by Meko
Hi.I am trying to get value from CoreData entity name Person with predicate and then comparing with new data in dictionary.But it it returns every time 0 .And it creates about 5 person with same name.
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"userName == %@",[flickr usernameForUserID:@"owner"]];
peopleList = (NSMutableArray *)[flickr fetchManagedObjectsForEntity:@"Person" withPredicate:predicate];
NSEnumerator *enumerator = [peopleList objectEnumerator];
Person *person;
BOOL exists = FALSE;
while (person = [enumerator nextObject]) {
NSLog(@" Person is: %@ ", person.userName);
NSLog(@"Person ID IS %@",person.userID);
NSLog(@"Dict ID is %@",[dict objectForKey:@"owner"]);
if([person.userID isEqualToString:[dict objectForKey:@"owner"]]) {
exists = TRUE;
NSLog(@"-- Person Exists : %@--", person.userName);
[newPhoto setPerson:person];
}
}
Here peopleList returns 0 and the enumerator also 0 and it does not use if and not comparing.In my entity I have Person and Photo entities.In Person I have userName and userID attributes and also one-to many relationship with Photo entity.
I think problem in predicate but i cant figure out it .
