CODEWITHSUNDEEP
iosobjective-ccore-data
Vladislav Brylinskiy
Vladislav Brylinskiy

Reputation: 549

Core Data Fault objects

I am using Core Data in my project.

I have faced a problem, when fault object's relations do not unfault after i access them in code.

My question: is it possible, that fault relation can stay fault after accessing to it.

upd:

NSManagedObjectContext *context = self.context;
    
if (!context)
return nil;
    
    NSFetchRequest *request = NSFetchRequest.new;
request.entity = [NSEntityDescription entityForName:name inManagedObjectContext:context]; 
    request.predicate = predicate;
    
    if (sortDescriptors)
        [request setSortDescriptors:sortDescriptors];
        
    return [context executeFetchRequest:request error:nil];

context - is default context on main thread. I access object's relationships on main thread.

Upvotes: 1

Views: 1370

Answers (1)

mrueg
mrueg

Reputation: 8225

Not sure what the problem is/what you want to achieve. If your fetch request returns faults instead of objects, do 

request.returnsObjectsAsFaults = NO;

If you also want some properties/relationships of your fetched objects to be fetched as well/not be faults, do 

[request setRelationshipKeyPathsForPrefetching:@[@"someProperty1",@"someOtherPropertyInEntity"]];

This last one sometimes helps tremendously when improving performance.

Upvotes: 2

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