CoreData is saving model without the save: method being called
- by chris
I have a list of items with a plus button in the navigation bar that opens up a modal window containing a table of the models attributes, that displays a form when the table items are clicked (pretty standard form style). For some reason if I click the plus button to open the form to create a new model, then immediately click the done button, the person model is saved. The action linked to the done button does nothing but call on a delegate method notifying the personListViewController to close the window.
The apple docs do state that the model is not saved after calling the insertNewObjectForEntityName: ...
Simply creating a managed object does not cause it to be saved to a persistent store. The managed object context acts as a scratchpad.
I am at a lost to why this is happening, but every time I click the done button I have a new blank item in the original tableView.
I am using SDK v3.1.3
// PersonListViewController - open modal window
- (void)addPerson {
// Load the new form
PersonNewViewController *newController = [[PersonNewViewController alloc] init];
newController.modalFormDelegate = self;
[self presentModalViewController:newController animated:YES];
[newController release];
}
// PersonFormViewController
- (void)viewDidLoad {
[super viewDidLoad];
if ( person == nil ) {
MyAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
self.person = [NSEntityDescription insertNewObjectForEntityForName:@"Person"
inManagedObjectContext:appDelegate.managedObjectContext];
}
...
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self action:@selector(done)];
self.navigationItem.rightBarButtonItem = doneButton;
[doneButton release];
}
- (IBAction) done {
[self.modalFormDelegate didCancel];
}
// delegate method in the original listViewController
- (void) didCancel {
[self dismissModalViewControllerAnimated:YES];
}
