Bill,
Fear not, the WW2 EL is OGNL, which uses booleans. 

-Pat

----- Original Message ----- 
From: "Bill Lynch" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 08, 2003 2:54 PM
Subject: Re: [OS-webwork] ww1.3 - ActionContext getPrincipal


> Mike,
> 
> Just noticed an error in your syntax:
> 
> > <ww:bean name="'webwork.action.ActionContext'" id="actionContext">
> >     <ww:if test="principal != null">
> >         Principal <ww:property value="principal"/> is logged in
> >     </ww:if>
> > </ww:bean>
> 
> That if should be:
> 
> <ww:if test="principal">
>     Principal <ww:property value="principal" /> is logged in
> </ww:if>
> 
> The WW EL is *really* confusing when it comes to null tests IMO. 
> test="principal" means "principal != null" and test="!principal" means 
> "principal == null".
> 
> Your example probably works because "null" is meaningless in the WW EL 
> so "principal != null" probably evaluates to true just like "principal".
> 
> I haven't been following the list too closely for WW2 - is this 
> something that could be cleared up for the next version? To me, I'd make 
> a lot more sense if test="foo" was a boolean test and "null" had meaning.
> 
> Cheers,
> --Bill
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email sponsored by: Parasoft
> Error proof Web apps, automate testing & more.
> Download & eval WebKing and get a free book.
> www.parasoft.com/bulletproofapps
> _______________________________________________
> Opensymphony-webwork mailing list
> [EMAIL PROTECTED]
> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork



-------------------------------------------------------
This SF.Net email sponsored by: Parasoft
Error proof Web apps, automate testing & more.
Download & eval WebKing and get a free book.
www.parasoft.com/bulletproofapps
_______________________________________________
Opensymphony-webwork mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork

Reply via email to