def cart(request):
"""It showes customer's cart
and allows to change products numbers.
"""
cart = Cart(request)
products = cart.get()
products_ids = {p.id: p for p in products}
OrderFormSet = formset_factory(OrderForm, extra=0)
if request.method == 'POST':
formset = OrderFormSet(request.POST)
if formset.is_valid() and formset.has_changed():
for cd in formset.cleaned_data:
product = get_object_or_404(Product, pk=cd['product'])
cart.add_or_update(product, cd['count'])
else:
data = [{'product': p.id, 'count': c} for p, c in products.items()]
formset = OrderFormSet(initial=data)
for form in formset:
form.product_info = products_ids[int(form.hidden_fields()[0].value())]
context = {
'products': products,
'formset': formset,
'cart_count': cart.count(),
'total': cart.total(),
}
return cart.set(render(request, 'sales/cart.html', context))
def add(request, id):
"""It adds the product to the Cart"""
product = get_object_or_404(Product, pk=id)
cart = Cart(request)
cart.add_or_update(product, 1)
context = {
'product': product,
'in_cart': cart.has(product),
'cart_count': cart.count(),
}
return cart.set(render(request, 'sales/show.html', context))
def delete(request, id):
"""It removes the product from the Cart"""
product = get_object_or_404(Product, pk=id)
cart = Cart(request)
cart.delete(product)
return cart.set(redirect(reverse('cart')))