class MainViewModel:
def __init__(self):
self.note_repository = NoteRepository()
# Create notes field as a behavior subject with note from the business logic as an initial value
# Your code here
self.observables = []
def attach(self, observable):
self.observables.append(observable)
observable.update_view(self.note_repository.notes)
def add_note(self, note: str):
# Add note and emit event with new date to the subject
# Your code here
self.note_repository.add_note(note)
for o in self.observables:
o.update_view(self.note_repository.notes)
def clear_all(self):
# Clear all note and emit event with new data to the subject
# Your code here
self.note_repository.clear_all_notes()
for o in self.observables:
o.update_view(self.note_repository.notes)
class MainViewModel:
def __init__(self):
self.note_repository = NoteRepository()
# Create notes field as a behavior subject with note from the business logic as an initial value
# Your code here
self.behavior = BehaviorSubject(self.note_repository.get_all_notes())
def add_note(self, note: str):
# Add note and emit event with new date to the subject
# Your code here
self.note_repository.add_note(note)
self.behavior.on_next(self.note_repository.get_all_notes())
def clear_all(self):
# Clear all note and emit event with new data to the subject
# Your code here
self.note_repository.clear_all_notes()
self.behavior.on_next(self.note_repository.get_all_notes())