On Dec 21, 7:02 am, schwim <gsch...@gmail.com> wrote:
> OK, I'm a total newbie. I ran through the tutorial on the django site,
> and decided to extend the poll system a bit just to learn more. I
> figured quite a bit out, but on this one I'm stuck.
>
> I want to provide a page at polls/new to add a new poll. I'm trying
> to use the generic.create_update.create_object generic view to provide
> the form, which works, but when I submit the post, it doesn't follow
> the post_save_redirect I specify. I think I know why, but first,
> here's my urlconf:
>
> (r'^new/$', 'django.views.generic.create_update.create_object',
> dict({'model': Poll}, post_save_redirect="../")),
>
> I've no idea if that is right, but I stopped getting errors with it,
> and my template will display. Here's the template I'm using:
>
> <form method="post" action=".">
> <p><label for="id_newpoll">New Poll:</label> {{ form.question }}
> <input type="submit" />
>
> This generates the expected form. When I click submit, I get returned
> to the same page, no errors. I'm pretty sure this is happening
> because I have NOT NULL in the pub_date field, and I'm trying to
> insert a new record without a date. Makes sense to me, but how do I
> get there? Like I said, I'm a total newbie to this - bash me if you
> want. ;)
>
> So, what am I doing wrong, and more important to the long term, how
> the heck do I debug something like this? I'm getting no errors.
You won't see errors because you haven't included them in your
template. Either render the whole form with {{ form.as_p }} - which
will render the errors as well - or for each field include a reference
to that field's errors - {{ form.fieldname.errors }} - plus
{{ form.non_field_errors }} at the top of the form.
If you've got a non-blank field in your model that you don't want to
display in your form, make sure you include it in the exclude list in
the inner Meta class. Then set it the value manually in your view.
class MyForm(forms.ModelForm):
class Meta:
exclude=['pub_date']
... in the view ...
if request.method=='POST':
form = MyForm(request.POST)
if form.is_valid()
new_obj = form.save(commit=True)
new_obj.pub_date=datetime.date.today()
new_obj.save()
etc.
--
DR.
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