[Cartoweb-users] Problem with Checkboxes

[Carolin Latze]

Hi all,

I try to write a plugin, which executes depending on a checkbox
selection in the Navigation Tab. Therefore, I add to cartoclient.tpl:

      {if $products_active|default:''}
      <p><b>Show all Companies for a special Product</b></p>
      Products:<br />
      <input type="checkbox" id="prod1"
name="Brotgetreide"/>Brotgetreide<br />
      <input type="checkbox" id="prod2" name="Butter"/>Butter<br />
      <input type="checkbox" id="prod3" name="Eier"/>Eier<br />
      <input type="checkbox" id="prod4" name="Milch"/>Milch<br />
      {/if}

This works perfect. But now, if I try to read out, which checkbox is
activated, I use:

            $this->p1 = isset($request[self::PROD1]) ?
$request[self::PROD1] : '';
            $this->p2 = isset($request[self::PROD2]) ?
$request[self::PROD2] : '';
            $this->p3 = isset($request[self::PROD3]) ?
$request[self::PROD3] : '';
            $this->p4 = isset($request[self::PROD4]) ?
$request[self::PROD4] : '';

in the HttpHandlePostRequest method of the plugin. This leads to the
following error message:

Fatal error: Undefined class constant 'PROD1' in
C:\wamp\www\cartoweb3\projects\gis-lag\plugins\products\client\ClientProducts.php
on line 26

I think, I use the wrong method to read the checkboxes, but I cannot
find any example how to do it the right way. Does anybody have an idea?

Thanks in Advance
Carolin

-- 
Carolin Latze
Research Assistant

Department of Computer Science
Boulevard de Pérolles 90
CH-1700 Fribourg

phone: +41 26 300 83 30