hi,
I have a modelForm for a model where one field is excluded. One of the lines in
my model validation needs that field - so model validation fails with a
'DoesNotExist' error. How does one get round this? The relevant parts of the
model and the traceback are appended. The field excluded is 'player'.
model:
class Handicap(models.Model):
"""just name and handicap index - how to handle validity?"""
player = models.ForeignKey(Player,verbose_name=_("Player"))
handicap = models.DecimalField(_("Handicap index"),max_digits=3,
decimal_places=1)
valfrom = models.DateField(_("Valid from"))
valto = models.DateField(_("Valid to"))
class Meta:
unique_together = ('player','valto')
def clean(self):
if self.valfrom >= self.valto:
raise ValidationError(_("from date should be less than to date"))
for hand in self.player.handicap_set.all():
if self.valto == hand.valto:
raise ValidationError(_("There is another handicap with the
same to date"))
traceback:
Environment:
Request Method: POST
Request URL: http://127.0.0.1:8000/addhandicap/1/
Django Version: 1.2 beta 1 SVN-12403
Python Version: 2.6.0
Installed Applications:
['django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.admin',
'djangogolf.web']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware')
Traceback:
File "/usr/lib/python2.6/django/core/handlers/base.py" in get_response
101. response = callback(request, *callback_args,
**callback_kwargs)
File "/usr/lib/python2.6/django/contrib/auth/decorators.py" in _wrapped_view
24. return view_func(request, *args, **kwargs)
File "/home/lawgon/djangogolf/../djangogolf/web/views.py" in addhandicap
628. if form.is_valid():
File "/usr/lib/python2.6/django/forms/forms.py" in is_valid
120. return self.is_bound and not bool(self.errors)
File "/usr/lib/python2.6/django/forms/forms.py" in _get_errors
111. self.full_clean()
File "/usr/lib/python2.6/django/forms/forms.py" in full_clean
267. self._clean_form()
File "/usr/lib/python2.6/django/forms/models.py" in _clean_form
318. self.instance.clean()
File "/home/lawgon/djangogolf/../djangogolf/web/models.py" in clean
163. for hand in self.player.handicap_set.all():
File "/usr/lib/python2.6/django/db/models/fields/related.py" in __get__
264. raise self.field.rel.to.DoesNotExist
Exception Type: DoesNotExist at /addhandicap/1/
Exception Value:
--
regards
Kenneth Gonsalves
Senior Project Officer
NRC-FOSS
http://nrcfosshelpline.in/web/
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