IOS : BAD ACCESS when trying to add a new Entity object
- by Maverick447
So i'm using coredata to model my relationships .
This is the model in brief
Type A can have one or more types of type B
Type B has a inverse relationship of being associated with one of type A
Type B can have one or more types of type C
Type C has a inverse relationship of being associated with one of type B
From a UI standpoint , I have a Navigation controller with controllers that successively sets up the first A object (VC-1) , then another viewcontroller (VC-2) creates a B object ( I pass in the A object to this controller) and the B object is added to the A object .
Similarly the same thing happens with B and C . The third Viewcontroller (VC3) first creates a C object and assigns it to the passed B Object .
Also between these viewcontrollers the managedObjectCOntext is also passed .
SO my use case is such that while viewcontroller (VC-3) is the top controller a button action will keep creating multiple objects of type C and add them to the same type B object that was passed . Also as part of this function I save the managedObject context after saving each type C .
e.g. code in viewcontroller 3
- (void) SaveNewTypeC
{
TypeC *newtypeC = (Question*)[NSEntityDescription insertNewObjectForEntityForName:@"TypeC" inManagedObjectContext:managedObjectContext];
[newtypeC setProp1:] ;
[newtypeC setProp2:]
..
..
**[typeBObject addTypeCInTypeBObject:newtypeC];**
[section setTotalCObjectCount:[ NSNumber numberWithInt:typeCIndex++]];
NSError *error = nil;
if (![managedObjectContext save:&error]) {
// Handle error
NSLog(@"Unresolved error %@, %@, %@", error, [error userInfo],[error localizedDescription]);
exit(-1); // Fail
}
[newtypeC release];
}
- (IBAction)selectedNewButton:(id)sender {
[self SaveNewTypeC];
[self startRepeatingTimer];
}
The BAD ACCESS seems to appear when the bold line above executes Relating to some HashValue .
Any clues on resolving this would be helpful .
