I found a solution off of stack overflow. I had to bind an instance
to the form when editing. So I changed the following line:
form = ProjectForm(request.POST, instance=project)
It seems to work and is in testing.
On Oct 7, 5:40 pm, Streamweaver <streamwea...@gmail.com> wrote:
> Some more information. The view method to save the item is as follows:
>
> def update_project(request, slug):
> '''Method for editing already existing projects.'''
>
> project = get_object_or_404(Project, slug=slug)
> if request.method == 'POST': # If form was submitted run it
> through.
> form = ProjectForm(request.POST)
> if form.is_valid():
> form_instance = form.save(commit=False)
> form_instance.id = project.id
> form_instance.created_on = project.created_on
> form_instance.save()
> return HttpResponseRedirect(reverse('view-project', args=
> [slug]))
> else:
> form = ProjectForm(instance=project)
>
> return render_with_context(request, 'project/projectedit.xhtml', {
> 'form': form,
> 'action': reverse('update-project',
> args=[slug]),
> 'button': 'Update Project',
> 'title': 'Editing Project'
> })
>
> On Oct 7, 5:24 pm, Streamweaver <streamwea...@gmail.com> wrote:
>
> > The title field in my model is set to unique and when I use a form to
> > edit this I get an error that an item with this value already exists.
>
> > As I understand it this is because ModelForm throws an error when I
> > call form.is_valid() and all information I can find tells me to
> > override the clean method in the form however it seems like this
> > requires me to reimplement the entire validation code again?
>
> > Is there an easier way to deal with unique text fields in form
> > validation for existing data?
>
> > Thanks in advance for any help.
>
>
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