multiple Id arg django - django

Question

I have an issue with my web-app django.
In example, user can add an artist, and with this artist, he can (list, delete, play) music.
When the user click on the artist, the URL is 'music/1/' where the artist ID is 1, and music is listed.
When user want delete a music, the URL is 'delmusic/1/' where the music ID is 1.
delmusic function works, but returns an error PageNotFound with this http URL :
'http://host.local/appli/delmusic/1/webgui.views.music'
My urls.py :
url(r'^music/(\d+)/$', 'webgui.views.music'),
url(r'^delmusic/(\d+)/$','webgui.views.delmusic'),
My music template :
<a href="{% url 'webgui.views.delmusic' music.id %}"style="margin-bottom: 3px" type="button">
My view :
def music(request, id):
listmusic = Music.objects.filter(artist=id)
return render(request, 'music.html', {'listmusic': listmusic})
def delmusic(request, id):
music = Music.objects.get(id=id)
music.delete()
return redirect('webgui.views.music')
I think there is confusion with music.id and arist.id, but I don't know..
Maybe you will have an idea ?

Answer 1

You have a slight issue with your urls.py - the 2nd argument points to the views function, but is not used as a reference in the templates, for that you need to do:
url(r'^music/(\d+)/$', 'webgui.views.music', name='music'),
url(r'^delmusic/(\d+)/$','webgui.views.delmusic', name='delmusic'),
and then in the template
<a href="{% url 'delmusic' music.id %}" style="margin-bottom: 3px" type="button">
or if you had a namespace defined for your app in django_settings/urls.py:
<a href="{% url '<APPNAMESPACE>:delmusic' music.id %}" style="margin-bottom: 3px" type="button">
and then at then in views.py do
from django.core.urlresolvers import reverse
def delmusic(request, id):
music = Music.objects.get(id=id)
artist_id = music.artist.id
music.delete()
return redirect(reverse('music', args=[artist_id]))