Removing a Managed Object
On the Movies tab in the sample app, the user can swipe on the right side of a table cell, or can tap the Edit button to reveal the delete controls for each table cell. When Delete is tapped on a cell, the table view delegate method tableView:commitEditingStyle:forRowAtIndexPath: is called. The method checks whether the editing style is delete. If so, the method gets a reference to the managed object context from the fetched results controller. The fetched results controller keeps a reference to the managed object context it was initialized with, which is needed to delete the object.
NSManagedObjectContext *context = [self.fetchedResultsController managedObjectContext];
The method determines ...
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