TYPO3 Core

Maybe this belongs in the "IRRE" category. Unfortunately, I do not seem to able to update the description or category.

Morton and I talked about this on Slack ~1 month ago.

Unfortunately, adding a custom data provider ist not an option to resolve #67611. The custom data provider would need to fetch the parent record, which is not (yet) available in the DB (see #67611).

The same holds true for #72620: As long as the parent record has not been written to the DB, a custom data provider has no chance to retrieve the necessary information.

With the current architecture, the type information of the parent would need to be passed through the inline record stack (JSON). Unfortunately, there is no entry point in the code, where a developer would be able to extend the information.

Stumbled over this in slack.

What i did for an extension Typo3 6.2:

Inline child record:

class FromFields
{
    public function getFields($config, $pObject)
    {
        $parent = $pObject->inline->inlineStructure['stable'][0];
        $result = $GLOBALS['TYPO3_DB']->exec_SELECTgetSingleRow('*',$parent['table'],'uid = '.$parent['uid']);
        $tableName = $result['from_table'];

       $filterList = "sys_language_uid,l10n_parent,l10n_diffsource,t3ver_label, hidden,starttime,endtime,tx_extbase_type, petition";

       $result = array();
       $i=0;
        $config['items'] = $GLOBALS['TCA'][$tableName]['columns'];
        foreach($GLOBALS['TCA'][$tableName]['columns'] as $field => $value){
          if(!in_array($field, GeneralUtility::trimExplode(",",$filterList))){
              $result[$i] = array(
                  0 => \TYPO3\CMS\Extbase\Utility\LocalizationUtility::translate($value['label'], '')." ($field)",
                  1 => $field
              );
              $i++;
          }
        }

        $config['items'] = $result;

        return $config;
    }
}

'from_field' => array(
            'exclude' => 1,
            'label' => 'LLL:EXT:eventmgmt_importer/Resources/Private/Language/locallang_db.xlf:tx_eventmgmtimporter_domain_model_fieldmapping.from_field',
            'config' => array(
                'type' => 'select',
                'itemsProcFunc' => '\Undkonsorten\EventmgmtImporter\Utility\FromFields->getFields',
                'size' => 1,
                'maxitems' => 1,
                'eval' => 'required'
            ),
        ),

Parent Record:

'requestUpdate' => 'from_table',

Seems to me like a dirty hack and i would love to have a better solution. Also this is not working for >= 7.6