cfobject / cfinvoke problem in my application.cfc

[CFmonger]

Hello;

I am trying to use cfobject in my onsessionstart function in my application.cfc file. The cfobject is another application.cfc file I have in a sub directory in the web site, it runs the shopping cart. I am not firing this off properly and I was hoping someone could help me fix my code so it will operate properly.This is my invoke statement:

<cfobject name="SESSION.myShoppingCart" component="ShoppingCart">
<cfinvoke component="#SESSION.myShoppingCart#" method="getShoppingCart">

This is my whole argument statement for on session start:

<cffunction name="onSessionStart" returntype="any" output="true">
<cfset SESSION.created = now()> <!--- This sets off another session in the site --->
<cfobject name="SESSION.myShoppingCart" component="ShoppingCart">
<cfinvoke component="#SESSION.myShoppingCart#" method="getShoppingCart">

</cffunction>

this is my error:

Context validation error for tag cffunction.

The end tag </cffunction> encountered on line 80 at column 11 requires a matching start tag.

The error occurred in C:\website\Application.cfc: line 28

26 : <cffunction name="onSessionStart" returntype="any" output="true"> 27 : <cfset SESSION.created = now()> 28 : <cfobject name="SESSION.myShoppingCart" component="ShoppingCart"> 29 : <cfinvoke component="#SESSION.myShoppingCart#" method="getShoppingCart">

Can anyone help me? What do I need to do to set off my shopping cart functions on the cfc I am trying to invoke?

Thank You

CFmonger

[Dan_Bracuk]

This looks wrong because session.myShoppingCart is not a component, it's a variable.

<cfobject name="SESSION.myShoppingCart" component="ShoppingCart">
<cfinvoke component="#SESSION.myShoppingCart#" method="getShoppingCart">

Next, your cfinvoke does not have a returnvariable.

None of this explains the missing start tag.  My guess is that it's a bonus error from your cfinvoke tag.

[CFmonger]

this is what I am supposed to put in the on sessionstart function:

<cfobject name="SESSION.myShoppingCart" component="ShoppingCart">

But this throws the same error. I am reading this off of instructions from a book. Obviously the book is wrong. Is there a way to make that cfobject statement work? I don't want a return variable. I want the ShoppingCart.cfc that resides in the sub directory /donation/ShoppingCart.cfc to go into client memory, I don't need a return value, I need the shoppong cart application portion fired when they hit the web site, creating a "shopping cart" in session / client variables.

How would I do that using this tag? Thanks.

CFmonger

[Dan_Bracuk · Accepted solution]

Your cfobject tag is fine.  It's the cfinvoke that is probably messing you up.

Once you have created an object from a cfc, you don't need to use the cfinvoke tag.  You call the methods like this.

<cfobject name = "AnObject" component = "SomeComponent>

<cfset SomeVariable = AnObject.AMethod(arguments go here)>

[CFmonger]

That is what I am missing. The cfset tag.

Would I write the cfset like this?

<cfobject name="SESSION.myShoppingCart" component="ShoppingCart">

<cfset SESSION.myShoppingCart = ShoppingCart.get(arguments go here)>

what argument would I give it and is get the method I want? actually, is this correct at all?

CFmonger