[Flow] Optional DateTimeConverter

[Jan Greth]

Hey again!

In my Model i have a \DateTime property, which is optional:

---------------------------------------------
[...]
/**
  * @var \DateTime
  * @ORM\Column(nullable=true)
  */
protected $stopdate;
[...]
/**
  * Constructs this item
  */
public function __construct() {
	[...]
	$this->stopdate = NULL;
}
[...]
---------------------------------------------

In my controller i have a initializeUpdateAction for Type converting.

---------------------------------------------
public function initializeUpdateAction() {
[...]
$this->arguments['item']->getPropertyMappingConfiguration()
->forProperty('stopdate')->setTypeConverterOption(
	TYPO3\Flow\Property\TypeConverter\DateTimeConverter',
	\TYPO3\Flow\Property\TypeConverter
	\DateTimeConverter::CONFIGURATION_DATE_FORMAT,
	'm/d/Y H:i');
[...]
}
---------------------------------------------

But, as my property is optional, i can submit it empty (null) and doing 
this brings me the exception:

---------------------------------------------
#1297759968: Exception while property mapping for target type 
"Vendor\Package\Domain\Model\Item", at property path "": Catchable Fatal 
Error: Argument 1 passed to 
Vendor\Package\Domain\Model\Item_Original::setStopdate() must be an 
instance of DateTime, null given, called in 
/var/www/flow/Packages/Framework/TYPO3.Flow/Classes/TYPO3/Flow/Reflection/ObjectAccess.php 
on line 229 and defined in 
/var/www/flow/Data/Temporary/Development/Cache/Code/Flow_Object_Classes/Vendor_Package_Domain_Model_Item.php 
line 81
---------------------------------------------

So what do have to do that in my DB a "NULL" is set when i submit 
"stopdate" empty ?


Greetings,
Jan