We will now move on to delete a record from the persistent store. In our table view, we will load the customers using an instance of NSFetchRequest, as shown:
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
//Get the context first
NSManagedObjectContext *managedObjectContext = [self managedObjectContext];
//load data from Customer entity
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] initWithEntityName:@"Customer"];
self.customers = [[managedObjectContext executeFetchRequest:fetchRequest error:nil] mutableCopy];
[tblView reloadData];
}Here, we will declare customers as a mutable array to store our records from the Customer entity:
@property (strong) NSMutableArray *customers;
To delete a record, we just need to get our Customer record, which is an instance of NSManagedObject from the customers array, then use an instance of managedObjectContext to call the deleteObject method on...