CODEWITHSUNDEEP
django
dzhem911
dzhem911

Reputation: 1

problems with get_absolute_url()

Please, I need your help. I can't return urls from model to template. I think that problem in method get_absolute_url. This is the error that I get:

NoReverseMatch at /
Reverse for 'product_list' with arguments '('saws',)' not found. 1 pattern(s) tried: ['$']

Code is:

# models
class Category(models.Model):
    name = models.CharField(verbose_name='Category', max_length=100, db_index=True)
    slug = models.SlugField(max_length=100, db_index=True,
                            unique=True)
...
    def get_absolute_url(self):
        return reverse('core:product_list',
                       args=[self.slug])

urls.py

app_name = 'core'

urlpatterns = [
    path('', views.ProductView.as_view(), name='product_list'),]
    #url(r'^$', views.ProductView.as_view(), name='product_list'),

views.py

class ProductView(generic.ListView):
    queryset = Product.objects.filter(available=True)
    paginate_by = 3
    form_class = QuantityForm
    categories = Category.objects.all()


    def category_slugg(self, category_slug=None):
        if category_slug:
            category = get_object_or_404(Category, slug=category_slug)
            return category


    def get_context_data(self, **kwargs):
        context = super(ProductView, self).get_context_data(**kwargs)
        context['Products'] = self.form_class
        context['categories'] = self.categories
        context['category'] = self.category_slugg
        return context

html

<li {% if not category %}class="selected"{% endif %}>
 <a href="{{ categories.get_absolute_url }}"All</a>
</li>
{% for c in categories %}
 <a href="{{ c.get_absolute_url }}">{{ c.name }}</a> <!--if delete 'c.get_absolute_url', except escape-->
{% endfor %}

Upvotes: 0

Views: 748

Answers (2)

Andrei Osmolovskii
Andrei Osmolovskii

Reputation: 117

Try changing args=[self.slug] to kwargs={'slug': self.slug}, then in urls.py:

urlpatterns = [
    path('<str:slug>/', views.ProductView.as_view(), name='product_list'),
    ]

The idea is that get_absolute_url receives kwargs from urls.

Upvotes: 0

markwalker_
markwalker_

Reputation: 12869

Your url path doesn't accept any args but then you pass it a slug.

You need to allow the slug in the URL;

path('<slug:category_slug>/', views.ProductView.as_view(), name='product_list'),

There's an example of this in the django docs here; https://docs.djangoproject.com/en/3.0/topics/http/urls/#examples

Upvotes: 2

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