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У меня есть форма для добавления встреч. Я хотел бы обновить поле в другой таблице во время отправки. Позвольте мне проиллюстрировать:

модель учетных записей (пользовательская модель пользователя)

 class Account(AbstractBaseUser):   patient_status = (   ('No Patient', _('No Patient')),  ('New Patient', _('New Patient')),  ('Patient', _('Patient')),  )   first_name = models.CharField(_('First Name'), max_length=50)  last_name = models.CharField(_('Last Name'), max_length=50)  username = models.CharField(_('Username'), max_length=50, unique=True)  ...  # required  is_patient = models.CharField(_('Patient'), max_length=20, choices=patient_status)  ...  

views.py добавление встречи:

 def add_appointment(request):  form = AddAppointmentForm(request.POST or None)    if request.method == 'POST':  if form.is_valid():  appoint_user = form.cleaned_data.get('user')  appoint_seat = form.cleaned_data.get('seat')  appoint_start_appointment = form.cleaned_data.get('start_appointment')  appoint_end_appointment = form.cleaned_data.get('end_appointment')    # If Appointment already exist   if Appointment.objects.filter(user=appoint_user, seat=appoint_seat, start_appointment=appoint_start_appointment, end_appointment=appoint_end_appointment).exists():  messages.warning(request, "This appointment already exists.")   else:  form.save()   messages.success(request, 'Appointment was added successfully!')  return redirect('appointments:add_appointment')  else:  form = AddAppointmentForm()  

Я хотел бы обновить is_patient после is_valid(), что-то вроде:

 patient = Appointment.objects.filter(user=appoint_user).count() if patient gt; 0:  patient.user__is_patient = 'Patient'  patient.save()  

Как я могу получить доступ к is_patient из таблицы учетной записи для обновления, а также где в представлении находится правильное место для размещения кода?

Обновление с помощью модели встреч

 class Appointment(models.Model):    APPOINTMENT_STATUS = (  ('New', _('New')),  ('Finished', _('Finished')),  ('Rescheduled', _('Rescheduled')),  ('Cancelled', _('Cancelled')),  ('Notshow', _('Notshown')),  )   DURATION = (  ('Notstarted', _('Not Started')),  ('Checkin', _('Check In')),  ('TransferToSeat', _('Transfer to Seat')),  ('Completed', _('Completed')),  )   user = models.ForeignKey(Account, on_delete=models.CASCADE)  seat = models.ForeignKey(Seat, on_delete=models.SET_NULL, null=True)  start_appointment = models.DateTimeField(default=timezone.now, blank=True)  end_appointment = models.DateTimeField(default=timezone.now, blank=True)  name = models.CharField(max_length=255)  appointment_notes = models.TextField(_('Appointment Notes'), max_length=1500, null=True, blank=True)  status = models.CharField(_('Appointment Status'), max_length=20, choices=APPOINTMENT_STATUS, default='New')  duration = models.CharField(_('Duration'), max_length=20, choices=DURATION, default='Not Started')  confirmed = models.BooleanField(_('Confirmed'), default=False)  emailed = models.BooleanField(_('Emailed'), default=False)  date_created = models.DateTimeField(_('Date Created'), auto_now_add=True)  date_updated = models.DateTimeField(_('Date Updated'), auto_now=True)  

Update после добавления кода:

 if request.method == 'POST':  if form.is_valid():  appoint_user = form.cleaned_data.get('user')  appoint_seat = form.cleaned_data.get('seat')  appoint_start_appointment = form.cleaned_data.get('start_appointment')  appoint_end_appointment = form.cleaned_data.get('end_appointment')    # If Appointment already exist   if Appointment.objects.filter(user=appoint_user, seat=appoint_seat, start_appointment=appoint_start_appointment, end_appointment=appoint_end_appointment).exists():  messages.warning(request, "This appointment already exists.")   else:  patient = Appointment.objects.filter(user=appoint_user)  if patient.count() gt; 0:  patient[0].user.is_patient = 'Patient'  patient.user.save()    else:  form.save()  

попробуйте это

 patients = Appointment.objects.filter(user=appoint_user) if patients.count() gt; 0:  for patient in patients:  patient.user.is_patient = 'Patient'  patient.user.save()  

или

 patients = Appointment.objects.filter(user=appoint_user) if patients.count() gt; 0:  appoint_user.is_patient = 'Patient'  appoint_user.save()