21. Display product quantity for anonymous user

Next, we will implement functionality to display the product quantity within the cart for anonymous users. The process will be analogous to the previous implementation, which allowed the cart to be viewed and updated by anonymous users.

We will integrate the same code from the previous section into the cart function of the new_context.py file. This file is responsible for displaying the product quantity across all HTML templates.

new_context.py

def cart(request) :
    product_amount_cart = 0
    if request.user.is_authenticated:
        client = request.user.client #? one to one relationship
    else :
        if request.COOKIES.get('id_session') :
            id_session = request.COOKIES.get("id_session")
            client, created = Client.objects.get_or_create(id_session=id_session)
        else : #? if the client enters directly on the cart, whithout generating cookies
            return {"product_amount_cart" : product_amount_cart} #? return initial quantity, which is 0

In the code above, we implemented a check to verify if the user has an id_session generated by cookies. If the id_session does not exist, indicating the user accessed the cart directly without adding a product, the function returns the initial product quantity of 0.

Now, the product quantity is accurately displayed for anonymous users.