From: Eugene Bolshakov <eugene.bolshakov@...>
Date: 2007-09-11T17:35:36+09:00
Subject: Re: CartItem count being 0 or 1 all the time

Hi,

>> So it seems like with the Depot app in Chapter 8, if there are
>> thousands of users using the website, there will be thousands or tens
>> of thousands of CartItem objects in the server machine's RAM.... and the
>> Cart object contains the array that tells which user has which
>> CartItem objects...

The Cart object contains the array of current user's items only.

>> but I tried adding items after items... the count just won't go from 1
>> to 2, 3, 4, 5, 6 but will just keep on being either 0 or 1. Any
>> thoughts as to why?

That happens because on every request the Cart class is loaded and
@@count is set to 0. Then Cart@initialize is called (only once) and
@@count is set to 1.

What do you want to achive? Id you'd like to get the total number of
items in the current user's cart, then it's simply Cart#items.size, if
you'd like to know the total number of items in all users' carts then
you need to store it in somewhere (in the database for example) and
update on adding/removing the product.

Hope that helps.
Eugene