python - from django.urls import path

Pasar una lista a través de la url en django

Question

Quiero pasar una lista a través de la url. Pero cuando lo intenté, obtuve algunos errores. Entonces, ¿cómo puedo hacer eso? Alguien por favor ayudame ..

esta es mi vista

def add_student(request):

    if request.method == ''POST'':
        student_list = []
        student_name = request.POST.getlist(''student_name'')
        student_phone = request.POST.getlist(''student_phone'')

        zipped = zip(student_name,student_phone)

        for student_name,student_phone in zipped:

            student_object = Student(
                                student_name=student_name,
                                student_phone=student_phone
                            )
            student_object.save()

            student_list.append(student_object.id)

        return HttpResponseRedirect(reverse(''students:view_students'', args=student_list))
**# in the above code it throwing some errors** 
    else:
        return render(request,''students/add_student.html'')


def view_students(request,student_list=None):
    if student_list:
        instances = Student.objects.filter(id__in=student_list)
    else:
        instances = Student.objects.filter()
    context = {}
    context[''instances''] = instances

    return render(request,''students/view_all_student.html'',context)

esta es mi url:

url(r''^view-students/(?P<student_list>/w+)/$'',views.view_students, name=''view_students''),

este es el error que obtuve

NoReverseMatch at /app/product/add-product/

Reverse for ''view_products'' with arguments ''(14, 15)'' and keyword arguments ''{}'' not found. 1 pattern(s) tried: [u''app/product/view-products/(?P<pd_list>.*)/$'']

aquí (14,15) son los artículos de la lista.

Si la pregunta no es correcta Alguien por favor corrige la pregunta.

Answer 1

Si todo lo que quiere hacer es generar una lista, simplemente debe hacer eso.

def add_student(request):
    if request.method == ''POST'':
        student_list = []
        student_name = request.POST.getlist(''student_name'')
        student_phone = request.POST.getlist(''student_phone'')

        zipped = zip(student_name,student_phone)

        for student_name,student_phone in zipped:
            student = Student.objects.create(student_name=student_name,
                                             student_phone=student_phone)
            student_list.append(student)

        return render(request,''students/view_all_student.html'', {''instances'': student_list})
    else:
        return render(request,''students/add_student.html'')

Sin embargo, su problema parece estar relacionado con la publicación doble de esta solicitud por parte de los usuarios. Para remediar esto, podría pasarlos como un parámetro get

def add_student(request):
    if request.method == ''POST'':
        student_list = []
        student_name = request.POST.getlist(''student_name'')
        student_phone = request.POST.getlist(''student_phone'')

        zipped = zip(student_name,student_phone)

        for student_name,student_phone in zipped:
            student = Student.objects.create(student_name=student_name,
                                             student_phone=student_phone)
            student_list.append(str(student.id))

        redirect = HttpResponseRedirect(reverse(''students:view_students''))
        redirect[''Location''] += ''&''.join([''students={}''.format(x) for x in student_list]))
        return redirect
    else:
        return render(request,''students/add_student.html'')

def view_students(request):
    students = request.GET.getlist(''students'')
    if students:
        students = [int(x) for x in students]
        instances = Student.objects.filter(id__in=students)