def save_product(request):
if request.method == "POST":
id = request.POST.get("id")
product = Product()
if id:
name = request.POST.get("name")
cost = request.POST.get("cost")
Product.objects.filter(id=id).update(name=name, cost=cost)
else:
product.name = request.POST.get("name")
product.cost = request.POST.get("cost")
product.save()
return HttpResponseRedirect("/")
