Creating the purchase page

Let’s improve our shopping cart page and include some functionalities to allow users to make purchases. To achieve that, we need to follow these steps:

1. Configuring the purchase URL.
2. Defining the purchase function.
3. Updating the cart.index template.
4. Creating the cart.purchase template.

Configuring the purchase URL

In /cart/urls.py, add the next path as shown in bold:

from django.urls import path
from . import views
urlpatterns = [
    path('', views.index, name='cart.index'),
    path('<int:id>/add/', views.add, name='cart.add'),
    path('clear/', views.clear, name='cart.clear'),
    path('purchase/', views.purchase,
        name='cart.purchase'),
]

We defined a cart/purchase/ path that will execute the purchase...