[Flow] \DateTimeConverter

[mario chiari]

Hi,

I have a problem on how to use \DateTimeConverter for my settings.
I have a Father/Son situations, and my New form let a user to define
multiple Father, each with multiple Sons. 

Hence, my createAction() needs to be defined something like:

public function createAction(array $newFather) {  
      $propertyMapper = new \TYPO3\Flow\Property\PropertyMapper(); 
      foreach($newFather as $id => $father){
      $fatherObj = $propertyMapper->convert($father,'\...\Model
\Father'); 
     $this->fatherRepository->add($fatherObj); 
}

Everything works fine. Now, the Father model has a \DateTime property
and I would like to use a simple d-m-Y date format; I learnt from some
other post how to do so by a initializeCreateAction(), if an array is
not involved:
	public function initializeCreateAction() {
	$this->arguments['newFather']
	->getPropertyMappingConfiguration()
	->forProperty('my_date')
	->setTypeConverterOption('TYPO3\Flow\Property\TypeConverter  
               \DateTimeConverter', \TYPO3\Flow\Property\TypeConverter
               \DateTimeConverter::CONFIGURATION_DATE_FORMAT,'Y-m-d');}

But how do I fit a similar trick to my settings? 
Thanks

Cheers
mario