How to make a cart in django?

Question

Django

How to make a cart in django?
Or how to fix it to work?
there is a product model
models.py

#модель товара 
class Ware(models.Model):
    title = models.CharField(max_length = 130)
    description = models.TextField()
    prise = models.DecimalField(max_digits = 7, decimal_places=0)
    available = models.BooleanField(default=True)
    image = models.ImageField(upload_to='images/', blank=True)
    avtor = models.CharField(max_length = 130)
    
    def __str__(self):
        return self.title
#модель корзины
class CartItem(models.Model):
    ware = models.ForeignKey(
        'Ware',
        on_delete=models.CASCADE,
    )
    qty = models.PositiveIntegerField(default=1)
    item_total = models.DecimalField(max_digits=9, decimal_places=0)
    
    
    def __str__(self):
        return "Cart item for product {0}".format(self.product.title)
        
class Cart(models.Model):
    items = models.ManyToManyField(CartItem, blank=True)
    cart_total = models.DecimalField(max_digits=9, decimal_places=0)
    
    
    def __str__(self):
        return str(self.id)

I tried to make a cart, but it didn't work for me
here is views.py

#это моя корзина 
def cart_view(request):
    cart = Cart.objects.first()
    context ={
        'cart': cart
    }
    return render(request, 'cart.html', context)
    
#добавление в корзину товара
def add_to_cart_view(request, ware_pk):
    ware = Ware.objects.get(pk=ware_pk)
    new_item, _ = CartItem.objects.get_or_create(ware=ware, item_ware=ware.prise)
    cart = Cart.objects.first()
    cart.items.add(new_item)
    cart.save()
    return HttpResponseRedirect("/")


#моя продукт
def testimage_add(request):
    if request.method != 'POST':
        form=CommentsForm()
    else:
        form=CommentsForm(request.POST, request.FILES)
        if form.is_valid():
            post = form.save(commit=False)
            form.save()
            return HttpResponseRedirect("/")
    context={'form': form}
    return render(request, 'ware.html', context)

and urls.py

urlpatterns = [
    url('(?P<pk>[0-9]+)/', DetailView.as_view(model = Ware, template_name = 'detail_ware.html')),
    url('add_to_cart/(?P<ware_pk>[-\w]+)/', views.add_to_cart_view, name='add_to_cart_view'),
    url('cart/', views.cart_view, name='cart_view'),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

when I add a product to the cart, it does not transfer me to the main page, but I am transferred to the product page and the product is not saved in the basket

Answer 1

https://github.com/bmentges/django-cart
https://github.com/nevimov/django-easycart
And in general - look at https://djangopackages.org/ :-)