Django pseudonymization example (1) - User queryset _filter_or_exclude

django masking - _filter_or_exclude.py

# ...

class UserQuerySet(models.QuerySet):
    def _filter_or_exclude(self, negate, *args, **kwargs):

        for field in self.model.MASKING_FIELDS:
            value = kwargs.pop(field, None)
            if value is not None:
                kwargs[f'_{field}'] = mask(value)

        return super(UserQuerySet, self)._filter_or_exclude(negate, *args, **kwargs)

# ...

class User(AbstractUser):

    MASKING_FIELDS = ['name', 'phone', 'date_of_birth', 'ip_address']
    
    # ...