How to change url to show description instead of id with django? - django

Question

I am building my first website. But instead of the page being products/15 (where 15 is the product id), I want it to show the description of the product. How can I achieve that?
Here are my models.py:
class Product(models.Model):
name = models.CharField(max_length=100)
category = models.CharField(max_length=100)
description = models.TextField()
def __str__(self):
return self.name
views.py:
def product(request, id):
return render(request, 'product.html', {})
urls.py:
urlpatterns = [
path('products/<id>/', post, name='sub-detail'),
]
Thanks in advance for the help!

Answer 1

As babak gholamirad saids you should use a key that is UNIQUE in the model and the URL, just as id is but not description.
But, if you want to use and display a more "descriptive" KEY than the id in the URL: Django's slugs are made for that.
What is a "slug" in Django?
https://docs.djangoproject.com/en/3.0/ref/models/fields/#slugfield
models.py
class Product(models.Model):
name = models.CharField(max_length=100)
slug = models.CharField(max_length=256, unique=True)
category = models.CharField(max_length=100)
description = models.TextField()
def __str__(self):
return self.name
views.py:
def product(request, slug):
product_object = Product.objects.get(slug=slug)
...
return render(request, 'product.html', {})
urls.py:
urlpatterns = [
path('products/<slug>/', post, name='sub-detail'),
]
usage:
https://<my-domain>/products/my-wonderfull-descriptive-product-name/