little bit confuse in dgetting absolute url in django - django

Question

#project url
from django.conf import settings
from django.conf.urls import url
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path, include
import products
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('products.urls')),
url(r'^product/(?P<title>[\w-]+)/$', products.views.single,name='single')
]
# app url
from django.urls import path, include
import products
from . import views
urlpatterns = [
path('', views.home, name='home'),
]
#model
class products(models.Model):
title = models.CharField(max_length=120)
desc = models.TextField()
price = models.DecimalField(max_digits=10, decimal_places=2, default=29.99)
sales_price = models.DecimalField(max_digits=10, decimal_places=2, blank=False, null=False, default=0)
slug = models.SlugField(unique=True)
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
update = models.DateTimeField(auto_now_add=False, auto_now=True)
active = models.BooleanField(default=True)
def __str__(self):
return self.title
def get_price(self):
return self.price
def get_absolute_url(self):
return reverse("single", kwargs={"title": self.title})
#views
def home(request):
product = products.objects.all()
template = 'home.html'
context = {'product': product}
return render(request, template, context)
def single(request,title):
try:
product = products.objects.get(title=title)
template = 'products.html'
context = {'product': product}
return render(request, template, context)
except:
raise Http404
plz view my code .. i m littlebit confuse in absolute url.. it returns title of the product after clicking some link but it doesnt give me the title if i change produc to other. for eg:http:/127.0.0.1:8000/product/T-shirt/ gives title but wheni hit http:/127.0.0.1:8000/productS/T-shirtgives eroror

Answer 1

It's hard to tell what your actual problem is from the way you've expressed your question, but there are several issues:
Models, unless a single entity represents a plurality of something, must be named in singular. Also, following Python practices, they should be capitalized.
class products(...) should be class Product(...).
Since title is not an unique field, as soon as you have multiple products named "T-shirt", your single view will crash, since .get() refuses to work if more than one object matches the query.
Rethink your URL scheme (to e.g. use that unique slug field you have).
The product/.../ URL should be in products/urls.py, not your project URLs.
Move it there.
Unless you're absolutely sure what you're doing, don't use a bare except:, since it will happily hide any exception. You're looking for except ObjectDoesNotExist:, probably.
You should consider using generic class-based views.