How to create dynamically resizable pages in Django?

Question

Django

I started learning Python + Django, I decided to write a simple bolg... There was a problem with the dynamically changing URL of articles from the database. On the Internet, I found instructions on what and how, prescribed it, throws an error page not found.
Here is my code:

models:

class Gadgets(models.Model):
    title = models.CharField('Название', max_length=255)
    text = models.TextField('Текст', max_length=1000000)
    image = models.ImageField('Изображение', upload_to='images', blank=True, null=True)
    author = models.CharField('Автор', max_length=255)

    def __str__(self):
        return '{} | {} '.format(self.title, self.author)

    class Meta:
        verbose_name = 'Гаджет'
        verbose_name_plural = 'Гаджеты'

views:

def gadgets(request):
    gadget = Gadgets.objects.order_by('-id')
    data = {
        'gadget': gadget
    }
    return render(request, 'gadgets/gadgets.html', data)


class GadgetDetailView(DetailView):
    model = Gadgets
    template_name = 'gadgets/gadgets_detail.html'
    context_object_name = 'gadgets'

urls:

urlpatterns = [
    path('', views.gadgets),
    path('<int:pk', views.GadgetDetailView.as_view(), name='gadgets-detail')
]

Can someone tell me where the error is, I will be very grateful, thanks in advance!

Answer 1

'<int:pk'