Empty Django Form Select Field - django

Question

I want empty job_users field before sending to the template. Because job_groups and job_users is dependent. I am calling ajax call when the group is select and users of that group will be displayed inside job_users. But now all users are displayed inside job_users select field.
class JobForm(forms.ModelForm):
job_description = forms.CharField(widget=forms.Textarea(attrs={'rows':4, 'cols':15}))
job_users = None
class Meta:
model = Jobs
fields = [
'job_name',
'job_group',
'job_users',
]
def __init__(self, *args, **kwargs):
self.user_company = kwargs.pop('user_company', None)
super().__init__(*args, **kwargs)
self.fields['job_group'].queryset = None
self.fields['job_group'].queryset = None i am using this but it is giving me error

Answer 1

Maybe you can do it like this:
class JobForm(forms.ModelForm):
job_description = forms.CharField(widget=forms.Textarea(attrs={'rows':4, 'cols':15}))
class Meta:
model = Jobs
fields = [
'job_name',
'job_group',
]
def __init__(self, *args, **kwargs):
self.user_company = kwargs.pop('user_company', None)
super().__init__(*args, **kwargs)
self.fields['job_group'].queryset = Jobgroup.objects.none()
But, it will throw error when you try to validate the form using form.is_valid(). So before doing that, update the queryset in the views like this:
def some_view_def(request):
form = JobForm(request.POST)
form.fields['job_group'].queryset = JobGroup.objects.filter(...) # <-- here
if form.is_valid():
# rest of the code