prolog-point-of-sale/views/cart.pl

11 lines
352 B
Prolog

:- http_handler(root(cart/add/ProductName), cart_add(ProductName), []).
% GET /cart/add/ProductName
cart_add(ProductName, Request) :-
\+ product(ProductName, _), !,
http_redirect(see_other, root(.), Request).
cart_add(ProductName, Request) :-
http_session_assert(cart_entry(ProductName)),
http_redirect(see_other, root(.), Request).