fixture fails to load on inet field

[Michael P. Soulier <msoulier@…>]

Using the admin interface I entered a couple of records for my model.

class TugInstance(models.Model):
    """This class represents a single instance of TUG in the multi-instance
    case."""

    enabled = models.BooleanField(default=False)
    public_ip = models.IPAddressField(unique=True)
    wan_ip = models.IPAddressField(unique=True, blank=True, null=True)
    lan_ip = models.IPAddressField(unique=True)
    ready_for_calls = models.BooleanField(default=True)
    calls_in_progress = models.PositiveIntegerField()
    default_icp = models.ForeignKey(Icp)

    def __str__(self):
        return str(self.id)

    class Admin:
        pass

I am using postgresql-7.4.13-2.RHEL4.1 on CentOS 4.4.

I used the json serializer to dump json format of these records.

[root@vmware-espresso teleworker]# cat sample_data.json
[{"pk": "1", "model": "top.tuginstance", "fields": {"default_icp": 1,
"wan_ip": "", "ready_for_calls": true, "lan_ip": "192.168.1.55", "enabled":
true, "public_ip": "216.191.234.111", "calls_in_progress": 5}}, {"pk": "2",
"model": "top.tuginstance", "fields": {"default_icp": 2, "wan_ip":
"216.191.234.112", "ready_for_calls": true, "lan_ip": "10.33.15.145",
"enabled": false, "public_ip": "216.191.234.112", "calls_in_progress": 0}}]

I then cleared the table manually, and tried to load this json as a fixture.

[root@vmware-espresso teleworker]# python manage.py --pythonpath=.. loaddata sample_data.json
Loading 'sample_data.json' fixtures...
Installing json fixture 'sample_data' from absolute path.
Problem installing fixture 'sample_data.json': invalid input syntax for type inet: ""

Seems that there are issues translating the json to sql that postgres will accept.