Forms: Update

Description

1. if request.method == 'POST':: This checks if the HTTP request method is POST, which is typically used for submitting form data;
2. form = NoteForm(request.POST): This creates an instance of the NoteForm form class, using the data submitted in the POST request (request.POST);
3. if form.is_valid():: This checks if the form data is valid according to the form's validation rules;
4. title = form.cleaned_data['title']: This retrieves the cleaned (validated and processed) value of the 'title' field from the form;
5. content = form.cleaned_data['content']: Similarly, this retrieves the cleaned value of the 'content' field from the form;
6. note.title = title and note.content = content: These lines update the 'title' and 'content' fields of the Note object with the cleaned data obtained from the form;
7. note.save(): This saves the changes made to the Note object in the database;
8. return redirect('notes'): If everything is successful, the user is redirected to the 'notes' page.