#14944: Saving a model which refers to unexistent models does not spit any
errors
------------------------------------------+---------------------------------
Reporter: ferran | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: 1.2
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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I had these models:
{{{
class IPv4(models.Model):
addr = models.IPAddressField(
unique=True,
primary_key=True
)
def __unicode__(self):
return self.addr
class Hostname(models.Model):
host = models.CharField(
max_length=200,
unique=True,
primary_key=True,
)
def __unicode__(self):
return self.host
class NameServer(models.Model):
host = models.ForeignKey(Hostname, related_name="hostname")
ip = models.ForeignKey(IPv4, related_name="ip address")
handle = GenericRelation(Handle, null=True)
def __unicode__(self):
return "%s (%s)" % (self.host, self.ip)
class Meta:
unique_together = ('host', 'ip')
}}}
If i try to add a NameServer with non-saved models, it does not fail until
it searches for objects:
{{{
>>> ns = NameServer(host=Hostname(host='tetuan.fompi.net'),
ip=IPv4(addr='87.216.178.18'))
>>> ns.save()
>>> Hostname.objects.all()
[<Hostname: seie.fompi.net>, <Hostname: uno.uno.uno>, <Hostname:
dos.dos.dos>]
>>> j.objects.all()
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/django/db/models/manager.py",
line 211, in __get__
raise AttributeError("Manager isn't accessible via %s instances" %
type.__name__)
AttributeError: Manager isn't accessible via NameServer instances
>>> NameServer.objects.all()
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/django/db/models/query.py", line
71, in __repr__
return repr(data)
File "/usr/lib/python2.7/site-packages/django/db/models/base.py", line
344, in __repr__
u = unicode(self)
File "domains/models.py", line 114, in __unicode__
return "%s (%s)" % (self.host, self.ip)
File "/usr/lib/python2.7/site-
packages/django/db/models/fields/related.py", line 302, in __get__
rel_obj = QuerySet(self.field.rel.to).using(db).get(**params)
File "/usr/lib/python2.7/site-packages/django/db/models/query.py", line
341, in get
% self.model._meta.object_name)
DoesNotExist: Hostname matching query does not exist.
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/14944>
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