admin.py 文件源码

def get_changeform_initial_data(self, request):
        apps = generic.get_app_model_info_from_request(request)
        obj = getattr(apps,'obj',None)
        current = request.user
        if obj:
            current = obj.user
        sm = Loan.objects.filter(user=current).aggregate(Sum('loan_amount')).get('loan_amount__sum') or 0.00
        return {'loan_amount':sm}