Hello--

On Nov 29, 2008, at 1:30 PM, Joe Smith wrote:

>
> So I've written this code in my controller and it doesn't seem to
> process my records and I don't know why.
>
> error = nil
> @my_cart = @user.shopping_cart
> @my_cart_items = @user.shopping_cart.shopping_cart_items
> for shopping_cart_item in @my_cart_items
>   if @quantity > 0
>      ....do stuff
>   end
>
> end
>
> Is this valid?
> --  

No. This doesn't look like it should work. I'd really recommend  
reading up on Ruby a bit. @my_cart_items would appear to be a  
collection (an array). Using "for" you are iterating over that list  
but you are not using the individual item yielded by the iterator. So,  
perhaps what you wanted was:

for shopping_cart_item in @my_cart_items do |item|
   unless item.quantity.zero?
     # do stuff...
   end
end



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