Hi all. I have a model form to update two attributes on a UserProfile.
The form is simple:
class UserProfileSetRememberMeForm(forms.ModelForm):
DURATION_CHOICES = (
( 0, 'Default (2 weeks)'),
( 1 * 7 * 24 * 60 * 60, '1 week'),
)
YESNO_CHOICES = ( (0, 'No'), (1, 'Yes'), )
remember_me_duration = forms.TypedChoiceField(choices=DURATION_CHOICES,
required=False,
coerce=smart_int)
remember_me = forms.ChoiceField(choices=YESNO_CHOICES, required=False)
def __init__(self, *args, **kwargs):
super(forms.ModelForm, self).__init__(*args, **kwargs)
attrs = { 'class': 'remember_me', }
self.fields['remember_me'].widget.attrs = dict(attrs)
if 'instance' in kwargs and not kwargs['instance'].remember_me:
attrs['disabled'] = 'disabled'
self.fields['remember_me_duration'].widget.attrs = dict(attrs)
class Meta:
model = UserProfile
fields = ( 'remember_me', 'remember_me_duration' )
The two fields are defined like so:
remember_me = models.BooleanField()
remember_me_duration = models.IntegerField(default=0)
The view is similarly simple:
def update_user_remember_me(request, user_id=None):
user = get_object_or_404(User, id=user_id)
prof = user.get_profile()
print "current: pk: %d remember_me: %s duration: %d" \
% (prof.pk, prof.remember_me, prof.remember_me_duration)
json = { 'valid': False }
if request.method == 'POST':
frm = UserProfileSetRememberMeForm(request.POST, instance=prof)
if frm.is_valid():
p2 = frm.save(commit=False)
print "to save: pk: %d remember_me: %s duration: %d" \
% (prof.pk, prof.remember_me, prof.remember_me_duration)
p2.save()
prof = UserProfile.objects.get(pk=prof.pk)
print "from db: pk: %d remember_me: %s duration: %d" \
% (prof.pk, prof.remember_me, prof.remember_me_duration)
json['enabled'] = prof.remember_me == 1
json['valid'] = True
return JsonResponse(json)
The debug output shows that (as far as I can see), the model should be
saved and the DB updated:
current: pk: 1 remember_me: 1 duration: 0
to save: pk: 1 remember_me: 0 duration: 0
from db: pk: 1 remember_me: 1 duration: 0
However, as you can see, it is not updated. Calling
'p2.save(force_update=True)' results in a 'Database error: Forced update
did not affect any rows' exception.
Any ideas? This is flummoxing me :/
Cheers
Tom
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