[TYPO3-english] formhandler: pre-loading values from file

[Reinhard Führicht]

Am 2011-03-21 14:02, schrieb Claudio Strizzolo:
> Hi all,
> I am trying to update a mailformplus setup to formhandler.
> I need to load the values to be used in a<select>  form field from a text
> file:
>
> Donald|Donald.Duck at example.com
> Mickey|Mickey.Mouse at example.com
>
> Basically, I need the first field to appear in the select menu, and the
> sedcond field to be assigned as the value.
>
> In mailformplus a preprocUserFunc was used:
>
> plugin.tx_thmailformplus_pi1.preprocUserFunc = fileadmin/somewhere/
> my_preproc.php:my_preproc->doit
>
> How can I do the same using formhandler? I read about the
> Preprocessor_LoadDB preprocessor, but that is a different case (DB instead
> of text file).
>
> Any hints?
>
> Thanks in advance,
>
> Claudio

Hi Claudio,

you can write a custom PreProcessor instead of the userFunc.

Example:

Put the PreProcessor in fileadmin/scripts/.

In TS:

plugin.Tx_Formhandler.settings {

   # Tell Formhandler to look in other paths than typo3conf/ext/ for 
class files too
   additionalIncludePaths.1 = fileadmin/scripts/

   # User your own PreProcessor
   preProcessors {
     1.class = Tx_Formhandler_PreProcessor_DoSomething
     1.config {
       foo = bar
     }
   }
}

The PreProcessor has to extend AbstractPreProcessor.
You have access to the GET/POST values via $this->gp.
You can access the configuration for your PreProcessor (everything in 
the "config" section) via $this->settings.

For all other stuff you can have a look at the existing PreProcessors to 
understand how it works.

NOTE: The PreProcessor MUST return $this->gp!

Regards,
Reinhard