def checkout(request):
cart = []
if request.POST:
cj = request.POST.get("cart")
else:
cj = request.GET.get("cart")
# Open cash drawer
fail = False
for f in json.loads(cj):
try:
product = Product.objects.get(pk=f['id'])
if f['num'] > product.stocked:
fail = True
cart.append({
'product': product,
'amount': f['num'],
'price': f['num'] * product.price,
})
except Product.DoesNotExist:
continue
if request.POST:
purchase = Purchase()
purchase.salesperson = request.user
purchase.total = sum([i['product'].price * i['amount'] for i in cart])
purchase.save()
for i in cart:
i['product'].stocked -= i['amount']
i['product'].save()
ProductPurchase.objects.create(
purchase=purchase,
product=i['product'],
amount=i['amount'])
template = loader.get_template('cashdesk/bon.txt')
context = RequestContext(
request,
{
'purchase': purchase,
'productpurchases': ProductPurchase.objects.filter(
purchase=purchase),
}
)
bon = template.render(context)
printer.print_and_cut(
request.session['printer'],
bon, True)
return HttpResponseRedirect("/")
ctx = {
'cart': cart,
'fail': fail,
'cartjson': request.GET.get("cart"),
'total': sum([i['product'].price * i['amount'] for i in cart]),
}
return render(request, 'cashdesk/checkout.html', ctx)
