How to implement BooleanField change on form save in Django?

Question

Django

class Zakaz(models.Model):
  pokupatel_name = models.CharField(max_length=150, verbose_name= 'Покупатель')
  pokupatel_email = models.EmailField(verbose_name= 'Покупатель email')
  phone_regex = RegexValidator(regex=r'^\+?1?\d{9,15}$',message=
  "Phone number must be entered in the format: '[phone]'. Up to 10 digits allowed.")
  pokupatel_phone = models.CharField(validators=[phone_regex], max_length=12, verbose_name= 'Телефон покупателя') # validators should be a list
  work = ForeignKey(Usluga, on_delete=PROTECT, verbose_name= 'Вид работы', related_name="work")
  date = DateTimeField(auto_now_add=True,verbose_name= 'Дата оформления заказа')
  v_rabote = models.BooleanField(default=False, verbose_name= 'Заказ в работе')
  def __str__(self) :
    return "Заказ №" + str(self.id) + " - " + str(self.work)
  class Meta:
    verbose_name= 'Заказ'
    verbose_name_plural= 'Заказы'

class NaRabotu(Instrument,Material):
  objects = NaRabotuManager()#Забирает только отсортированные Менеджером объекты!!!
  zakaz = OneToOneField (Zakaz, on_delete=PROTECT, db_index=True, verbose_name= 'Заказ',related_name="zakaz")
  rabotnik = ForeignKey(Rabotnik, on_delete=PROTECT, verbose_name= 'Работник', related_name="rabotnik")
  date = DateTimeField(auto_now_add=True,verbose_name= 'Принято к исполнению')
  def __str__(self):
    return str(self.zakaz)
  class Meta:

    verbose_name= 'В работе'
    verbose_name_plural= 'В работе'
    ordering = ['-date']

class ZakazAddView(CreateView):
  template_name = 'rabota/add_zakaz.html'
  model = Zakaz 
  fields =('pokupatel_name','pokupatel_email', 'pokupatel_phone', 'work')
  success_url = reverse_lazy ('rabota:index')

#Обработка формы в работу:
class RabotaAddView(CreateView):
  template_name = 'rabota/add_rabota.html'
  form_class = NaRabotuForm
  success_url = reverse_lazy ('rabota:index')

Can't implement BooleanField change in order while saving form RabotaAddView!!!!!!!! with logic! The buyer creates an order, in the order the BUL field with Fales by default, and when the order goes to work and its executor is assigned, it is necessary that in the given order it becomes True when the object is saved on the work registration

Answer 1

Add Method to WorkAddView

def form_valid(self, form):
    response = super().form_valid(form)

    Zakaz.objects.filter(id=self.object.zakaz_id).update(v_rabote=True)

    return response

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