On Thursday, January 13, 2011 7:30:56 PM UTC, hank23 wrote:
>
> I have a screen which displays just fine the first time in, however
> when I knowingly submit the page without entering data in all of the
> fields to cause an error the page loses some of the data and controls.
> I'm sure my view code is probably missing something just not sure at
> this point what exactly is missing. So far my view is coded according
> to the example given in the document at
> http://docs.djangoprojects.com/en/1.2/topics/forms/.
> The example though does not seem to clearly indicate what should be
> sent back to the screen in the case of errors. Below is my addchoice
> view which is the one in question:
>
> <snip>
>
> I would appreciate any suggestions for how to correc the code or links
> to one or more complete screen error processing view code. Thanks for
> the help.
>
You need to think about the path through the code that happens when
request.method is POST, but the form is not valid. In that case, in your
current code, dctnry is empty, so does not pass the form back to the
template.
Since you want to modify the contents of dctnry when the form is saved, I
would do it like this:
dctnry = {'infomessage': message}
if request.method == "POST":
form = AddChoiceForm(request.POST)
if form.is_valid():
poll = form.cleaned_data['pollquestions']
slctdchoice = form.cleaned_data['newchoice']
if poll:
newchoice = Choice(poll=poll.id,
choice=slctdchoice, votes=0)
newchoice.save()
confirmmessage = "Choice: %s has been saved for poll: %s" %
(slctdchoice, pollid)
dctnry['confirmmessage'] = confirmmessage
else:
form = AddChoiceForm()
dctnry['form'] = form
return render_to_response('polls/addchoice.html' dctnry,
context_instance=RequestContext(request))
which ensures that the form is always added to the context, no matter where
it is instantiated.
--
DR.
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to
django-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en.
