SOLVED!
It was a typo, the action attribute was pointing to the wrong view. Thanks a
lot for the help!
/Torbjörn
2010/11/8 Knut Ivar Nesheim
> Look at the HTML for the form. The 'action' attribute tells the
> browser where to submit the post. The view responsible for that URL is
> the one you should be looking at.
>
> If you have a ModelForm with no instance, Django will insert a new
> row. If there is an instance and you call form.save(), it will be
> updated (unless you have mucked about with model.pk or are forcing an
> insert)
>
> And to answer the "return to" question. Whenever you do:
>
>return HttpResponseRedirect('/url/')
>
> it will appear as a completely new request to '/url/'. No magic going on
> here.
>
> Where it can get confusing is if you are using the 'reverse' or
> 'redirect' functions, which will do a reverse lookup of urls or views
> based on url name or method name. If you have multiple urls with the
> same name and arguments, for instance, you can run into problems.
>
>
> On Mon, Nov 8, 2010 at 9:48 PM, Torbjörn Lundquist
> wrote:
> > That did not help.
> > I think I know what the problem is but I don't know how to solve it:
> > It seems that when I press the Submit button I jump to another
> view-function
> > (that inserts a new course). So, I use the same form i two different
> places,
> > both for insert and update. How does django know which view-function it
> > should "return" to?
> > /Torbjörn
> > 2010/11/7 cootetom
> >>
> >> This is a tough one, everything looks okay. I would try removing the
> >> categories variable from your model class just to see if that is
> >> causing problems. By the way, you can get that categories list from an
> >> instance of the Course class in the following way
> >> c.coursecategories_set.all() presuming CourseCategory has a foreign
> >> key back to Course and c = a Course instance.
> >>
> >> The other thing to check is the POST. Perhaps if it contains a key
> >> named "id" it would cause an insert, just a guess though.
> >>
> >>
> >>
> >> On Nov 7, 7:09 pm, Torbjorn wrote:
> >> > Here is the model:
> >> >
> >> > class Course(models.Model):
> >> > title = models.CharField(max_length=255)
> >> > owner = models.ForeignKey(User)
> >> >
> >> > def __unicode__(self):
> >> > return self.title
> >> >
> >> > def _getCategories(self):
> >> > cc = CourseCategories.objects.filter(course=self)
> >> > return cc
> >> >
> >> > categories = property(_getCategories)
> >> >
> >> > and the form:
> >> >
> >> > class PartialCourseForm(ModelForm):
> >> > class Meta:
> >> > model = Course
> >> > exclude = ('owner')
> >> >
> >> > Thanks
> >> > /Torbjörn
> >> >
> >> > On 7 Nov, 16:34, Marc Aymerich wrote:
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > > On Sun, Nov 7, 2010 at 4:21 PM, Torbjorn
> >> >
> >> > > wrote:
> >> > > > Hi, I want to update a record but somehow it becomes an INSERT
> >> > > > instead. This is my code:
> >> >
> >> > > > def editcourse(request, course_id):
> >> > > >course= Course.objects.get(id=course_id)
> >> > > >if request.method == 'POST':
> >> > > >form = PartialCourseForm(request.POST, instance=course)
> >> > > >if form.is_valid():
> >> > > >form.save()
> >> > > >return HttpResponseRedirect("/courses/")
> >> > > >else:
> >> > > >form = PartialCourseForm(instance=course)
> >> >
> >> > > >return render_to_response("editcourse.html", {'form':form})
> >> >
> >> > > > What do I wrong?
> >> >
> >> > > Can you paste your course model?
> >> >
> >> > > --
> >> > > Marc
> >>
> >> --
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