How to pass two PK through urls in Django?-CodePudding

I've created a function that adds the user to an event, that is working fine but, i'm having problems with the one that removes the users from the event, I didn`t figure out how to get the attendant so that the owner can remove it.

By now, I have this:

views.py (Function that adds the user to the event)

@login_required
def request_event(request, pk):
    previous = request.META.get('HTTP_REFERER')
    try:
        post = Post.objects.get(pk=pk)
        Attending.objects.create(post=post, attendant=request.user)
        messages.success(request, f'Request sent!')
        return redirect(previous)
    except post.DoesNotExist:
        return redirect('/')

(Function that removes users from the event, handled by the event owner)

@login_required
def remove_attendant(request, pk, id):
    previous = request.META.get('HTTP_REFERER')
    try:
        post = Post.objects.get(pk=pk)
        attendant = Attending.objects.get(id=attendance_id)
        Attending.objects.filter(post=post, attendant=attendant).delete()
        messages.success(request, f'User removed!')
        return redirect(previous)
    except post.DoesNotExist:
        return redirect('/')

Urls.py

path('post/(?P<pk>[0-9] )/remove_attendant/(?P<attendance_id>[0-9] )$', views.remove_attendant, name='remove-attendant'),

Any help or comment will be very welcome! thank you!!!

CodePudding user response：

attendance_id seems to be undefined in your code.

def remove_attendant(request, pk, attendance_id): should be what you're calling.

Also in theory, you should be able to access both pk and attendance_id from request.resolver_match.kwargs anyways.

CodePudding user response：

You can simply use positional arguments in your url path, no need for regex. Your variable names can also be descriptive, if it helps (if often helps me).

path('remove-attendant-view/<post_id>/<attendance_id>/', views.remove_attendant, name='remove_attendant'),

And in views.py, something like:

def remove_attendant(request, post_id, attendance_id):

And whereever you call this view function, you must ensure your url has those ids and pks in context and in order, for example something like:

<a href="{% url 'remove_attendant' post_id=post_id, attendant_id=attendance_id %}">Remove Attendant</a>