Django forms Reverse for '' with arguments '(7,)' and keyword arguments '{}' not found

Question

I have been running into this error for the past day and can\'t seem to solve it.

Reverse for \'\' with arguments \'(7,)\' and keyword arguments \'{}\' not          


        

Answer 1

Your url tag should be {% url "drui" disease_id=disease.id %}, because you need to pass in the keyword argument.

See the documentation for more information.

As you never save the new entry, I think you are just using the form to display the ModelChoiceField, in that case you don't need a ModelForm:

class DiseaseForm(forms.Form):
    disease = forms.ModelChoiceField(queryset=Disease.objects.all())

That way, you avoid the commit=False part.

You should always have an else for your if form.is_valid():

from django.shortcuts import redirect

def drui(request, disease_id):
   disease = get_object_or_404(Disease, pk=disease_id)
   ctx = {}
   ctx['disease'] = disease  
   ctx['indicatorInlineFormSet'] = IndicatorFormSet()
   ctx['diseaseForm'] = DiseaseForm()

   if request.method == "POST":

      diseaseForm = DiseaseForm(request.POST)
      indicatorInlineFormSet = IndicatorFormSet(request.POST, request.FILES)

      if diseaseForm.is_valid():
         return redirect('drui', disease_id=disease_id)
      else:
         # Form wasn't valid, return the same view to display the errors
         ctx['diseaseForm'] = diseaseForm
         ctx['indicatorInlineFormset'] = indicatorInlineFormset 
         return render(request, 'drui.html', ctx)

   else:

       return render(request, 'drui.html', ctx)