Cancel And Delete Functionality

because edit is a modal seque and the cancel button is a push seque, I added logic within cancel() to detect which seque was used to navigate to the page.

in cancel(_:) add condition to see which segue is being called. Call dismiss() for new item segue or popViewController() on modal seque.

if isPresentingInAddMealMode {
        dismiss(animated: true, completion: nil)
    }
    else if let owningNavigationController = navigationController{
        owningNavigationController.popViewController(animated: true)
    }
}

Deleting Reviews

Use delegates to make direct updates to the tableview

step 1: allow edit mode

tableView provides the editButtonItem. When pressed, it will start an edit mode and present - signs for each row.

step 2: add delete functionality

To be able to edit/delete a particular row in the tableview, we need to overload the tableview method and pass in an additional argument that is used to referenced to the selected row.

uncomment the method with

tableView(_:commit:forRowAt:)