Styjun

I am trying to print filtered sub_location drop down according to location attribute form extended admin user in Django.
I have a view which displays a form and saves the same form. There is no problem showing the view but when saving I get this following error:

TypeError: int() argument must be a string, a bytes-like object or a number, not 'QueryDict'

Here is my code:-

MODEL:

class Location(models.Model):
 name = models.CharField(max_length=30)
 def __str__(self):
 return self.name

class SubLocation(models.Model):
 location = models.ForeignKey(Location, on_delete=models.CASCADE)
 name = models.CharField(max_length=30)

 def __str__(self):
 return self.name

class AdminProfile(models.Model):
 user = models.OneToOneField(User, on_delete=models.CASCADE)
 location = models.ForeignKey(Location, on_delete=models.SET_NULL, null=True)

 def __str__(self): # __unicode__ for Python 2
 return self.user.username


class Batch(models.Model):
 location = models.ForeignKey(Location, on_delete=models.SET_NULL, null=True)
 sub_location = models.ForeignKey(SubLocation, on_delete=models.SET_NULL, null=True)
 batch_name = models.CharField(max_length=30, unique=True)

 def __str__(self):
 return self.batch_name

FORM:

class BatchForm(forms.ModelForm):
 class Meta:
 model = Batch
 fields = ('sub_location', 'batch_name')
 def __init__(self, user, *args, **kwargs):
 super(BatchForm, self).__init__(*args, **kwargs)
 self.fields['sub_location'].queryset = SubLocation.objects.filter(location = Subquery(AdminProfile.objects.filter(user = user).values('location')))

VIEW:

def add_batch(request):
 if request.user.is_authenticated:
 msg = ""
 if request.method == "GET":
 batch_form = BatchForm(user=request.user)
 else:
 batch_form = BatchForm(request.POST, request.FILES)
 if batch_form.is_valid():
 try:
 obj = batch_form.save(commit=False)
 #logined admin location will be here

 admin_object = AdminProfile.objects.filter(user = request.user)
 obj.location = admin_object[0].location
 obj.save()

 batch_form = BatchForm()
 msg = "Batch Added successfully....!"
 except IntegrityError as e:
 msg= "Batch already exist...!"
 else:
 batch_form = BatchForm(request.POST, request.FILES)
 return render(request, 'add_new_batch.html', 'batch_form':batch_form,'msg':msg)
 else:
 return redirect('admin_login')

when I am clicking on submit button to save the form then I'm getting this error
ERROR

Internal Server Error: /admin_panel/add_batch
Traceback (most recent call last):
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangocorehandlersexception.py", line 34, in inner
 response = get_response(request)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangocorehandlersbase.py", line 126, in _get_response
 response = self.process_exception_by_middleware(e, request)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangocorehandlersbase.py", line 124, in _get_response
 response = wrapped_callback(request, *callback_args, **callback_kwargs)
 File "C:UsersmonuDesktopTaskAdminPanelviews.py", line 34, in add_batch
 batch_form = BatchForm(request.POST, request.FILES)
 File "C:UsersmonuDesktopTaskAdminPanelforms.py", line 27, in __init__
 self.fields['sub_location'].queryset = SubLocation.objects.filter(location = Subquery(AdminProfile.objects.filter(user = user).values('location')))
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelsmanager.py", line 82, in manager_method
 return getattr(self.get_queryset(), name)(*args, **kwargs)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelsquery.py", line 844, in filter
 return self._filter_or_exclude(False, *args, **kwargs)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelsquery.py", line 862, in _filter_or_exclude
 clone.query.add_q(Q(*args, **kwargs))
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelssqlquery.py", line 1263, in add_q
 clause, _ = self._add_q(q_object, self.used_aliases)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelssqlquery.py", line 1287, in _add_q
 split_subq=split_subq,
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelssqlquery.py", line 1225, in build_filter
 condition = self.build_lookup(lookups, col, value)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelssqlquery.py", line 1096, in build_lookup
 lookup = lookup_class(lhs, rhs)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelslookups.py", line 20, in __init__
 self.rhs = self.get_prep_lookup()
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelsfieldsrelated_lookups.py", line 115, in get_prep_lookup
 self.rhs = target_field.get_prep_value(self.rhs)
 File "C:UsersmonuAppDataLocalProgramsPythonPython37libsite-packagesdjangodbmodelsfields__init__.py", line 965, in get_prep_value
 return int(value)

TypeError: int() argument must be a string, a bytes-like object or a number, not 'QueryDict'
[25/Mar/2019 09:31:03] "POST /admin_panel/add_batch HTTP/1.1" 500 125516

You have provided a user argument in your form's init method. In a couple if your else clauses you are not providing this user when instantiating the form:

else:
 batch_form = BatchForm(request.user,request.POST, request.FILES)