Creating a model instance - django

Question

I have two Models, (Doctor & Patient), the Doctor model is the parent model, How can I make the Service_doctor field an instance of the Doctor's model so that I can get the Doctor's name into the Patient's model using for loop in the HTML Template. This is what am trying to mean;
models.py
class Doctor(models.Model):
Doctor_Name = models.CharField(max_length=200)
def __str__(self):
return self.Doctor_Name
class Patient(models.Model):
Name = models.CharField(max_length=200)
Telephone = models.CharField(max_length=100, unique=True)
Service_doctor = models.ForeignKey(Doctor, on_delete=CASCADE)
def __str__(self):
return self.Doctor_Name
views.py
def Newpatient(request):
if request.method == 'POST':
Name = request.POST.get('Name')
Telephone = request.POST.get('Telephone')
Service_doctor = request.POST.get('Service_doctor')
formdata = Patient(Name=Name, Telephone=Telephone, Service_doctor=Service_doctor)
formdata.save()
return render(request, 'Adm.html')
Any help is appreciated.

Answer 1

This will create a new record under patient:
dr = Doctor.object.filter(id = pk)
patient = Patient(
name = 'John Doe'
telephone = '123456786'
service_doctor = dr
)

Answer 2

You can achieve this by using the request.user to set the Service_doctor as the one that is currently in instance:
def Newpatient(request):
if request.method == 'POST':
Name = request.POST.get('Name')
Telephone = request.POST.get('Telephone')
Service_doctor = request.user
formdata = Patient(Name=Name, Telephone=Telephone, Service_doctor=Service_doctor)
formdata.save()
return render(request, 'Adm.html')