Problem in displaying objects from ForeignKey in Django - django

Question

I am having two models Patient and Ipd, Patient can have multiple Ipd. I am trying to get Patient Info in IpdForm but don't know where I am getting wrong
I have already tried "qs = Ipd.objects.get(patient__id=patient_id)" , "qs = Ipd.objects.filter(patient__id=patient_id)" but nothing worked
models.py :
class Patient(models.Model):
name = models.CharField(max_length=200);
phone = models.CharField(max_length=20);
address = models.TextField();
Patient_id = models.AutoField(primary_key=True);
Gender= models.CharField(choices=GENDER, max_length=10)
consultant = models.CharField(choices=CONSULTANT, max_length=20)
def __str__(self):
return self.name
class Ipd(models.Model):
reason_admission = models.CharField(max_length=200, blank=False)
presenting_complaints = models.CharField(max_length=200,)
ipd_id = models.AutoField(primary_key=True)
rooms = models.ForeignKey(Rooms,on_delete=models.CASCADE, blank=False)
date_of_admission = models.DateField(("Date"),
default=datetime.date.today)
patient = models.ForeignKey(Patient, on_delete=models.CASCADE, blank=False, default = "")
def __str__(self):
return self.patient.name
forms.py :
class PatientForm(forms.ModelForm):
class Meta:
model = Patient
fields = ['name','phone','address','Patient_id','consultant','Gender']
class IpdForm(ModelForm):
class Meta:
model = Ipd
fields = ['patient', 'reason_admission', 'presenting_complaints',
'rooms', 'date_of_admission']
views.py:
#login_required
def ipd (request,patient_id):
formtwo = IpdForm()
qs = Ipd.objects.filter(patient__Patient_id=patient_id)
if request.method=="POST":
formtwo = IpdForm(request.POST)
if formtwo.is_valid() :
instance = formtwo.save(commit=False)
instance.save
else:
return HttpResponse(formtwo.errors)
else:
formtwo = IpdForm()
return render(request, 'newipd.html', {'a':qs,'form2':formtwo})
urls.py :
url(r'^order/ipd/(?P<patient_id>\d+)/$', my_order.ipd, name='ipd'),
html :
<div class="card-panel">
<span class="blue-text text-darken-2">Name : {{ab.name}}</span> <br>
<span class="blue-text text-darken-2">Phone : {{ a.phone }}</span><br>
<span class="blue-text text-darken-2">Address : {{ a.address }}</span><br>
<span class="blue-text text-darken-2">Gender : {{ a.Gender }}</span><br>
</div>

Answer 1

You can simply access your Patient model by using
Ipd.objects.filter(patient_id=patient_id)
Note the single underscore at the first patient_id.
You only use double underscores while accessing a related model, but in this case you have a foreign key directly in your Ipd model.
Edit
I just saw, that you created your own Patient_Id field.
I would suggest to recreate your Patient model without the field Patient_id.
Django will create an ID field itself.
If you really want to keep your own field, than the correct access to it would be:
Ipd.objects.filter(patient_patient_id=patient_id)
But I would not recommend that.
There are a lot more flaws in your code, like keeping all fields lowercase in a model, etc.
Please try to refer to the Django docs and maybe Python docs.
Keeping you code clear would simplify a lot of things.