[Django]-Django: limit_choices_to (Is this correct)

The only answer to ‘is it correct’ is ‘does it work when you run it?’ The answer to that of course is no, so I don’t know why you’re asking here.

There’s no way to use limit_choices_to dynamically to limit based on the value of another field in the current model. The best way to do this is by customising the form. Define a ModelForm subclass, and override the __init__ method:

class MyOrderForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(MyOrderForm, self).__init__(*args, **kwargs)
        if 'initial' in kwargs:
             self.fields['customer'].queryset = Customer.objects.filter(account=initial.account)