My template receives from views.py following nested dictionary of shopping cart content.
{
'20':
{'userid': 1,
'product_id': 20,
'name': 'Venus de Milos',
'quantity': 1,
'price': '1500.00',
'image': '/media/static/photos/pngegg.png'},
'23':
{'userid': 1,
'product_id': 23,
'name': 'Bicycle',
'quantity': 1,
'price': '1000.00',
'image': '/media/static/photos/366f.png'}
}
I am having problem with iteration through it. For example, when I am using following code,
{% for key, value in list %}
{{ key }} {{ value }}
{% endfor %}
instead of keys and values I receive just this:
2 0
2 3
My goal is to calculate grand total through multiplying quantity and price for each product and dding it all together with each product in cart.
May sombody give me a hand on this, or at least help to figure out how to iterate properly through nested dictionary?
i am using following lib for cart: https://pypi.org/project/django-shopping-cart/
views.py:
@login_required(login_url="/users/login")
def cart_detail(request):
cart = Cart(request)
queryset = cart.cart
context = {"list": queryset }
return render(request, 'cart_detail.html', context)
SOLVED (kind of): Following your advice, I've wrote calculation for "total" in views.py BUT, since dictionary of product has 6 attributes, "total" is added 6 times in loop, for each product in cart. For now I've just added division by 6, but obviously this is not rational solution
def cart_detail(request):
cart = Cart(request)
queryset = cart.cart
total_price=0
for key, value in queryset.items():
for key1, value1 in value.items():
total_price = total_price + (float(value['quantity']) * float(value['price']))
#Temporal decision
total_price = total_price / 6
context = {"list": queryset, "total_price": total_price }
return render(request, 'cart_detail.html', context)
I suggest you to do the calculations in views.py, save them into variables and then pass it to template.
Assuming that your
is saved in the variable cart_dict:
total_price=0
for product in cart_dict:
total_price = total_price + (float(product['quantity']) * float(product['price']))
context = {"cart_dict: cart_dict, "total_price": total_price }
return render(request, 'cart_detail.html', context)
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments