[Django]-NoReverseMatch at /allbook Reverse for 'random_book' with arguments '('',)' not found. 1 pattern(s) tried: ['info/(?P<pk>[0-9]+)\\Z']

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2👍

✅

Remove the parameter from the random_book:

urlpatterns = [
   # …
   path('random/', views.random_book, name='random_book')
]

as well as from the {% url … %} template tag:

<a class="nav-link" href="{% url 'random_book' %}">random</a>

You can not return the book itself as object. You should return for example the result of rendering a template:

from django.shortcuts import get_object_or_404, render

def random_book(self):
    book_pks = list(BookModel.objects.values_list('pk', flat=True))
    pk = random.choice(book_pks)
    book = get_object_or_404(BookModel, pk=pk)
    return render(request, 'some-template.html', {'book': book})

Note: Models normally have no …Model suffix. Therefore it might be better to rename BookModel to Book.

👤willeM_ Van Onsem

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