Django页面重定向中的参数

Question

I have the following code in views:

def submit_affective(request):
if request.method == 'POST':
    choice=request.POST['aff_choices']
    urlid=request.POST['url_list']
    url = Url.objects.get(id=urlid)
    aff_result=Affective.objects.create(
        affective=choice, url=url
        )
    return redirect('detail_affective',id=url.id)

def detail_affective(request,id):
boring_count=Affective.objects.filter(affective='Boring',url.id=id).count()
confusing_count=Affective.objects.filter(affective='Confusing',url.id=id).count()
engaging_count=Affective.objects.filter(affective='Engaging',url.id=id).count()
context = {
    'boring_count':boring_count,
    'confusing_count':confusing_count,
    'engaging_count':engaging_count,
}
return render(request,'feedback/detail_affective.html',context)

I want to show the number of "boring","confusing","engaging" in detail_affective only for that URL for which choice has been submitted in submit_affective . Please tell me the problem in my code. Am I passing the url id to detail_affective correctly? And is my way of filtering correct?

Answer 1

You cannot use url.id expression as filter argument, just use url_id instead:

boring_count=Affective.objects.filter(affective='Boring',url_id=id).count()
confusing_count=Affective.objects.filter(affective='Confusing',url_id=id).count()
engaging_count=Affective.objects.filter(affective='Engaging',url_id=id).count()

Also you need to add id as url agrument argument to the urlpattern:

path('detail_affective/<int:id>',views.detail_affective,name='detail_affective')