Took me a while to look at it - but I got it now.
> <cfinvoke component="cart2" method="get"
> returnvariable="objCart"></cfinvoke>
>
> <cfif isDefined("URL.AddToCart")>
> <cfset sucess = objCart.AddToCart(URL.idProduct, URL.qty)>
> </cfif>
If you look at this code - returnVariable 'objCart' is the retun out from createCart -
which is just a struct.. and not an instance of the CFC at all.
hence when you call the method on objCart - the error occurs.
Personally - I would have handled the creation/maintenance of the session.cart
instance in the application.cfm, and not had the CFC even look at the session
scope.
Remember - proper OOA/OOD - good cohesion states that an Object should have
a singular task. A shopping cart should only manage the shopping cart. It
shouldn't look at if it exists or not.
JMHO.
Mark
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