search for: invoice_view

...ession variable (session[:invoice_id]?) so that the application "remembers" which invoice you are dealing with (and in fact can also show the heading for it etc.). I can see problems here though, in case for example I want to allow the user to add order_lines from the same page as the invoice_view using Ajax. The scenario is clear: the user opens an order. Then he opens another order and adds some order_lines there. Then... well, he goes back to the first window, and - surprise surprise - he will be adding line_items to the wrong invoice! The super-easy solution then is to simply have t...