Create empty queryset by default in django form fields

Question

I have this fields in form: ``` city = forms.ModelChoiceField(label="city", queryset=MyCity.objects.all()) district = forms.ModelChoiceField(label="district", queryset=MyDistrict.objects.all()) area = forms.ModelChoiceField(label="area", queryset=MyArea.objects.all()) ``` district comes from click on city and area comes from click on area. With `queryset=MyDistrict.objects.all()` and `queryset=MyArea.objects.all()` form will be very heavy. How can I make querysets empty by default?

Accepted Answer

You can have an empty queryset by doing this:

```
MyModel.objects.none()
```

Although i don't know how are you going to use that form, you can put that as your field's queryset in order to get what you need...

You can find more information here

Create empty queryset by default in django form fields

Solution

Problem