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Posted to user@velocity.apache.org by "Foth, Oliver" <Ol...@gedas.de> on 2002/10/14 09:36:14 UTC

variable display problem

Hi everybody,

I have the following problem, or better: challenge ;-)
In a java file I've created some variables within an for loop:

for (i = 0, i < something.length(), i++)
{
   ...
   context.put("aufdat_"+i, aufdat);
   ...
}

I can use them in the vm file and they are displayed correctly. But instead
of using them like:

$aufdat_1<BR/>
$aufdat_2<BR/>
...

I need to use them in another loop:

#set ($index = 0)
#foreach ($thing in $something)
   #set ($index = $index + 1)
   $aufdat_$index
#end

How can I have "$aufdat_$index" displayed correctly?


		Gruß,

		Oliver Foth
> 	----------------------------------------------------
> 	gedas deutschland GmbH
> 	Teilelogistik
> 	Johann-Siegmund-Schuckert-Str. 2a
> 	D-34225 Baunatal
> 	Telefon/phone	+49-561-49995-34
> 	Telefax/telefax	+49-561-49995-52
> 	Mailto: Oliver.Foth@gedas.de
> 	http://www.gedas.com <http://www.gedas.com> 
> 	----------------------------------------------------
> 
>

Re: variable display problem

Posted by Jonathan Revusky <re...@wanadoo.es>.
On Monday 14 October 2002 09:36 am, Foth, Oliver wrote:
> Hi everybody,
>
> I have the following problem, or better: challenge ;-)
> In a java file I've created some variables within an for loop:
>
> for (i = 0, i < something.length(), i++)
> {
>    ...
>    context.put("aufdat_"+i, aufdat);
>    ...
> }

It seems to me that you should just put the variables in an ArrayList.

ArrayList aufdatei = new ArrayList();
for (i = 0; i<something.length(); i++) 
{
    aufdatei.add(aufdat)
    ...
}

and then in the VM file, use:

$aufdatei.get($index)

etcetera.

(Pity you can't just write ${aufdatei[index]} like in FreeMarker. ;-))

Hope that helps,

Jonathan Revusky
--
FreeMarker-Velocity comparison doc
http://freemarker.sourceforge.net/fmVsVel.html
Velocity->FreeMarker template conversion utility
http://freemarker.sourceforge.net/usCavalry.html


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Re: variable display problem

Posted by "Geir Magnusson Jr." <ge...@optonline.net>.
You can just use an ArrayList :

 List list = new ArrayList();

 for(i=0; i < something.length(); i++)
 {
   ....
    list.add(aufdat);
 }

 context.put("aufdatList", list);


And then in your template :

  #foreach($aufdat in $aufdatList)
        $aufdat<br>
  #end

Or 

   $aufdatList.get(3)

for direct access

On 10/14/02 3:36 AM, "Foth, Oliver" <Ol...@gedas.de> wrote:

> Hi everybody,
> 
> I have the following problem, or better: challenge ;-)
> In a java file I've created some variables within an for loop:
> 
> for (i = 0, i < something.length(), i++)
> {
>  ...
>  context.put("aufdat_"+i, aufdat);
>  ...
> }
> 
> I can use them in the vm file and they are displayed correctly. But instead
> of using them like:
> 
> $aufdat_1<BR/>
> $aufdat_2<BR/>
> ...
> 
> I need to use them in another loop:
> 
> #set ($index = 0)
> #foreach ($thing in $something)
>  #set ($index = $index + 1)
>  $aufdat_$index
> #end
> 
> How can I have "$aufdat_$index" displayed correctly?
> 
> 
> Gruß,
> 
> Oliver Foth
>> ----------------------------------------------------
>> gedas deutschland GmbH
>> Teilelogistik
>> Johann-Siegmund-Schuckert-Str. 2a
>> D-34225 Baunatal
>> Telefon/phone    +49-561-49995-34
>> Telefax/telefax    +49-561-49995-52
>> Mailto: Oliver.Foth@gedas.de
>> http://www.gedas.com <http://www.gedas.com>
>> ----------------------------------------------------
>> 
>> 
> 

-- 
Geir Magnusson Jr. 
geirm@adeptra.com                                    +1-203-355-2219 (w)
Adeptra Inc.                                         +1-203-247-1713 (m)



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RE: variable display problem

Posted by Peter Romianowski <me...@gmx.de>.
Perhaps you might want to put the Objects as a Map into the context.

Map map = new HashMap();
for (i = 0, i < something.length(), i++)
{
   ...
   map.put (""+i, aufdat);
   ...
}

context.put("aufdat", map);

And in the VM:

#foreach ($thing in $something)
    #set ($index = $index + 1)
    $aufdat.get($i)
#end

As I see, you can use a List, too, of course... depends on what your are
doing further :)

Peter


> -----Original Message-----
> From: Foth, Oliver [mailto:Oliver.Foth@gedas.de] 
> Sent: Monday, October 14, 2002 9:36 AM
> To: 'velocity-user@jakarta.apache.org'
> Subject: variable display problem
> 
> 
> Hi everybody,
> 
> I have the following problem, or better: challenge ;-)
> In a java file I've created some variables within an for loop:
> 
> for (i = 0, i < something.length(), i++)
> {
>    ...
>    context.put("aufdat_"+i, aufdat);
>    ...
> }
> 
> I can use them in the vm file and they are displayed 
> correctly. But instead of using them like:
> 
> $aufdat_1<BR/>
> $aufdat_2<BR/>
> ...
> 
> I need to use them in another loop:
> 
> #set ($index = 0)
> #foreach ($thing in $something)
>    #set ($index = $index + 1)
>    $aufdat_$index
> #end
> 
> How can I have "$aufdat_$index" displayed correctly?
> 
> 
> 		Gruß,
> 
> 		Oliver Foth
> > 	----------------------------------------------------
> > 	gedas deutschland GmbH
> > 	Teilelogistik
> > 	Johann-Siegmund-Schuckert-Str. 2a
> > 	D-34225 Baunatal
> > 	Telefon/phone	+49-561-49995-34
> > 	Telefax/telefax	+49-561-49995-52
> > 	Mailto: Oliver.Foth@gedas.de
> > 	http://www.gedas.com <http://www.gedas.com> 
> > 	----------------------------------------------------
> > 
> > 
> 


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