Question

So I’m adding a ListItem into ListName(There is a one to many relationship setted up) in a Class A

ListItem *newItem = [NSEntityDescription insertNewObjectForEntityForName:@"ListItem"
inManagedObjectContext:self.context];
//setting some attributes...

[listName addListItemsObject:newItem];
[self.context save:&error];    

After that Class B is via a delegate methode called

There I want to get the data out of Core Data, BUT…If I’m fetching all ListName, the ListItems are not up to date(for example only 5 items instead of 6). If I fetch all ListItems then there are all there(6 out of 6).

What is wrong with my code…I need to get all ListNames though

NSError *error;
NSFetchRequest *req = [[NSFetchRequest alloc] init];
if(context == nil)
   NSLog(@"context is nil");

NSEntityDescription *descr = [NSEntityDescription entityForName:@"ListName" inManagedObjectContext:self.context];
[req setEntity:descr];

NSSortDescriptor *sort = [[NSSortDescriptor alloc]initWithKey:@"lastModified" ascending:NO];

[req setSortDescriptors:[NSArray arrayWithObject:sort]];

NSArray * results = [self.context executeFetchRequest:req error:&error];

self.listNames = [results mutableCopy];
if ([results count] > 0) {
    ListName *test = [results objectAtIndex:0];
    [test.listItems count];
    NSLog(@"item count on list %i", [test.listItems count]);
    //wrong result

    NSFetchRequest *newReq = [[NSFetchRequest alloc] init];
    NSEntityDescription *descr = [NSEntityDescription entityForName:@"ListItem" inManagedObjectContext:self.context];
    [newReq setEntity:descr];

    NSArray * results2 = [self.context executeFetchRequest:newReq error:&error];
    NSLog(@"item count on items %i", [results2 count]);
    //right result

}

Answer 1

A simple reset has helped