Actually, continuing to use quiet notation ($!):
value="$!data.getRequest().getSession().getAttribute("formula")"
will work just fine. If the returned value is null it will be rendered as
value=""
and you will avoid any HTML goofiness.
The reason you are not getting a return value from this statement is that it
either returns null or is incorrect syntactically, not because Velocity
rendering is failing. Check your code and verify that the above statement
actually returns a valid result. I have a hunch it does not.
p.s.
I just tested the code below, and it works correctly:
## Set the session variable for testing purposes
$data.Session.setAttribute("formula", "somevalue")
<input type="text"
value="$!data.getRequest().getSession().getAttribute("formula")">
Scott
> -----Original Message-----
> From: Wimmer, Matthias [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 27, 2002 9:24 AM
> To: 'Jetspeed Users List'
> Subject: RE: Calling method with parameter in Velocity
>
> Stefan:
>
> I think Scott is right. You can't next quotation marks like brackets.
>
> So, I see three ways to solve your problem:
>
> 1.) You can use the single quotation marks:
> value="$!data.getRequest().getSession().getAttribute('formula')"
>
> 2.) You can escape the nested quotation marks:
> value="$!data.getRequest().getSession().getAttribute(\"formula\")"
>
> 3.) You can evaluate this expression in advance:
> #set ( $value =
> $!data.getRequest().getSession().getAttribute("formula") )
> value="$value"
>
>
> I hope this works. I have to admit that I tested none of these three
> solutions.
>
> good luck
>
> Matthias Wimmer
>
>
>
>
>
> -----Original Message-----
> From: Weaver, Scott [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 27, 2002 9:31 AM
> To: 'Jetspeed Users List'
> Subject: RE: Calling method with parameter in Velocity
>
>
> > This seems not to work, so I dropped the ! to see the variable itself.
> The
> > textt field gives
> >
> > $!data.getRequest().getSession().getAttribute(
> >
> > I assume velocity has problems with the "", because it seems to stop
> > reading
>
> The reason you see it like that is because
> $data.getRequest().getSession().getAttribute("formula") is returning null
> or
> is an invalid statement. The value that is placed in the <input> tag's
> "value" attribute is literally:
>
> value="$data.getRequest().getSession().getAttribute("formula")"
>
> This causes the form field to display incorrectly because of invalidly
> nested double quotes ("). If you view the source you will see the <input>
> tag in its entirety:
>
> <input type="text"
> value="$data.getRequest().getSession().getAttribute("formula")">
>
> Also, you can clean this code up by directly accessing the HttpSession
> object through RunData without accessing the HttpRequest first.
>
> $data.getSession() or in a more velocity-correct manner $data.Session
>
>
> Scott
>
>
>
> > -----Original Message-----
> > From: Stefan Kuhn [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, June 27, 2002 6:09 AM
> > To: Jetspeed Users List
> > Subject: Calling method with parameter in Velocity
> >
> > Hi everybody,
> > I've got a velocity portlet. This portlet should contain RunData as
> $data.
> > I
> > want to use this to give a session attribute to a text field:
> >
> > value="$!data.getRequest().getSession().getAttribute("formula")"
> >
> > This seems not to work, so I dropped the ! to see the variable itself.
> The
> > textt field gives
> >
> > $!data.getRequest().getSession().getAttribute(
> >
> > I assume velocity has problems with the "", because it seems to stop
> > reading
> > there. Is there any way to escape the "" ? According to velocity doc,
> this
> > should not be necessary, but ... it's not working
> > Thanks for answers
> > Stefan
> >
> > --
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>
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