Rails - May 2009 - a problem with instance and local variables

Hi all,

on page 151 of the book agile... we have the following code in the
file order.rb:

def add_line_items_from_cart(cart)
   cart.items.each do |item|
   li = LineItem.from_cart_item(item)
   line_items << li
end

what kind of variable is line_items? is it a local, class, instance or
other kind of variable?
if it is local how rails saves the contents of this variable when
saves the order in "save_order" method which is place in the file
"store_controller.rb"?

On May 9, 7:12 am, Ahmed Khademzadeh
<khademza...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi all,
>
> on page 151 of the book agile... we have the following code in the
> file order.rb:
>
> def add_line_items_from_cart(cart)
>    cart.items.each do |item|
>    li = LineItem.from_cart_item(item)
>    line_items << li
> end
>
> what kind of variable is line_items? is it a local, class, instance or
> other kind of variable?
Assuming the code is correct (you''re missing an ''end''
for starters),
the only way this could work were if line_items were a method
returning an appropriate object.

Fred
> if it is local how rails saves the contents of this variable when
> saves the order in "save_order" method which is place in the file
> "store_controller.rb"?