#13824: ModelValidation ignores blank=True
---------------------------+------------------------------------------------
Reporter: anonymous | Owner: nobody
Status: new | Milestone:
Component: Documentation | Version: 1.2
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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Cheers,
I'm not quite sure if this is a feature or a bug, so sorry if i
misunderstood this.
I am using a Model "Foo" that has a field like this:
{{{
#!python
[...]
class Foo(models.Model):
uid = models.ForeignKey(UserProfile, blank=True)
[...]
}}}
Next, I'm using this Model in a Form (via !ModelForm):
{{{
#!python
class FooForm(ModelForm):
class Meta:
model = Foo
[...]
}}}
I expect Django to ignore the `uid` when calling `is_valid()`, as it's
`blank` attribute is set `True` , but I get a !ValueError:
{{{
#!sh
ValueError at /foo/add/
Cannot assign None: "Foo.uid" does not allow null values.
Request Method: POST
Request URL: http://localhost:8000/de/foo/add/
Django Version: 1.2.1
Exception Type: ValueError
Exception Value:
Cannot assign None: "Foo.uid" does not allow null values.
Exception Location: <cut>/lib/python2.6/site-
packages/django/db/models/fields/related.py in __set__, line 314
}}}
This is since at the point where `is_valid()` is valled, uid is set to
`None`, since it is not sent by the form but filled in my view (it's
request.user.get_profile().user_id).
I looked for this in the Django docs, but didn't get a proper solution but
using `full_clean()` which would need me to adapt the code & use
try/except .
--
Ticket URL: <http://code.djangoproject.com/ticket/13824>
Django <http://code.djangoproject.com/>
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