The last thing to add in our view is a method for loading in a new record. This method will need to set up our form with a given row number and data dictionary from the controller.
Let's call it load_record() as follows:
def load_record(self, rownum, data=None):
The first thing we should do is set the form's current_record value from the rownum provided:
self.current_record = rownum
Recall that rownum could be None, indicating that this is a new record.
Let's check for that by executing the following code:
if rownum is None:
self.reset()
self.record_label.config(text='New Record')
If we're going to be inserting a new record, we simply want to reset the form, then set the label to indicate that this is a new ...
