#7006: Overridden fields/widgets for ForeignKeys in ModelForms
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Reporter: Simon Litchfield <[EMAIL PROTECTED]> | Owner:
msaelices
Status: assigned | Milestone: 1.0
Component: Forms | Version: SVN
Resolution: | Keywords:
Stage: Accepted | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by msaelices):
I've tested ticket with this models and form (used admin site for test):
{{{
#!python
# Models
class Affiliate(models.Model):
name = models.CharField(max_length=100)
class Booking(models.Model):
first_name = models.CharField(max_length=100)
last_name = models.CharField(max_length=100)
affiliate = models.ForeignKey(Affiliate, null=True, blank=True,
related_name='bookings')
# Forms
class BookingForm(forms.ModelForm):
affiliate = forms.CharField(max_length=20, required=False,
label='Affiliate Code')
class Meta:
model = Booking
fields = ('first_name', 'last_name', 'affiliate')
# Admin
class BookingAdmin(admin.ModelAdmin):
form = BookingForm
admin.site.register(Affiliate)
admin.site.register(Booking, BookingAdmin)
}}}
Admin rendered successfully a {{{CharField}}}, but problem was adding a
{{{Booking}}} object.
The traceback I got when tried to adding a {{{Booking}}} object with an
affiliate value of {{{'1'}}} was:
{{{
Traceback:
File "/var/lib/python-support/python2.5/django/core/handlers/base.py" in
get_response
86. response = callback(request, *callback_args,
**callback_kwargs)
File "/var/lib/python-support/python2.5/django/contrib/admin/sites.py" in
root
173. return self.model_page(request, *url.split('/', 2))
File "/var/lib/python-support/python2.5/django/views/decorators/cache.py"
in _wrapped_view_func
44. response = view_func(request, *args, **kwargs)
File "/var/lib/python-support/python2.5/django/contrib/admin/sites.py" in
model_page
192. return admin_obj(request, rest_of_url)
File "/var/lib/python-support/python2.5/django/contrib/admin/options.py"
in __call__
185. return self.add_view(request)
File "/var/lib/python-support/python2.5/django/db/transaction.py" in
_commit_on_success
238. res = func(*args, **kw)
File "/var/lib/python-support/python2.5/django/contrib/admin/options.py"
in add_view
483. new_object = self.save_form(request, form,
change=False)
File "/var/lib/python-support/python2.5/django/contrib/admin/options.py"
in save_form
361. return form.save(commit=False)
File "/var/lib/python-support/python2.5/django/forms/models.py" in save
218. return save_instance(self, self.instance,
self._meta.fields, fail_message, commit)
File "/var/lib/python-support/python2.5/django/forms/models.py" in
save_instance
43. f.save_form_data(instance, cleaned_data[f.name])
File "/var/lib/python-
support/python2.5/django/db/models/fields/__init__.py" in save_form_data
406. setattr(instance, self.name, data)
File "/var/lib/python-
support/python2.5/django/db/models/fields/related.py" in __set__
264. self.field.name,
self.field.rel.to._meta.object_name))
Exception Type: ValueError at /admin/ticket7006/booking/add/
Exception Value: Cannot assign "u'1'": "Booking.affiliate" must be a
"Affiliate" instance.
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/7006#comment:8>
Django Code <http://code.djangoproject.com/>
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