[TYPO3-mvc] FE editing and m:n relations

[Raphael Weber]

Hi,

I'm making my first steps in extension development with extbase/ fluid. 
The first plugin i'm working on is a form which allows frontend users to 
submit data of their club. This club record contains amongst others a 
field to assign fe-users as administrators. For this property I need a 
m:n relation between the club data record and the fe_users table.

Creating and editing of these club data records works fine, but when I 
submit the data with the FE form, no mm-record is being created and the 
field 'administrator' (Club table) gets the value 0.

Did I forget sth important what's especially required for FE-Editing?



MODEL Club:

class Tx_Extkey_Domain_Model_Club extends 
Tx_Extbase_DomainObject_AbstractEntity {


/**
  * FE user who is permitted to edit the club data
  *
  * @var 
Tx_Extbase_Persistence_ObjectStorage<Tx_Extkey_Domain_Model_Administrator>
  */
protected $administrator;

/**
  * FE user who is permitted to edit the club data
  *
  * @var Tx_Extkey_Domain_Model_Country
  */
protected $country;

/**
  * __construct
  *
  * @param $title
  * @param $established
  * @param $brandRelated
  * @param $termsAccepted
  * @param $city
  * @param $country
  * @param $zip
  * @return void
  */
public function __construct($title = NULL, $established = 0, 
$brandRelated = true, $termsAccepted = true, $city = NULL, $zip = NULL) {
	//Do not remove the next line: It would break the functionality
	$this->initStorageObjects();
	
	$this->setTitle($title);
	$this->setEstablished($established);
	$this->setBrandRelated($brandRelated);
	$this->setTermsAccepted($termsAccepted);
	$this->setCity($city);
	$this->setZip($zip);
}

/**
  * Initializes all Tx_Extbase_Persistence_ObjectStorage properties.
  *
  * @return void
  */
protected function initStorageObjects() {
/**
  * Do not modify this method!
  * It will be rewritten on each save in the extension builder
  * You may modify the constructor of this class instead
  */
	$this->administrator = new Tx_Extbase_Persistence_ObjectStorage();
}

/**
  * Adds a Administrator
  *
  * @param Tx_Extkey_Domain_Model_Administrator $administrator
  * @return void
  */
public function addAdministrator(Tx_Extkey_Domain_Model_Administrator 
$administrator) {
	$this->administrator->attach($administrator);
}

/**
  * Removes a Administrator
  *
  * @param Tx_Extkey_Domain_Model_Administrator $administratorToRemove 
The Administrator to be removed
  * @return void
  */
public function removeAdministrator(Tx_Extkey_Domain_Model_Administrator 
$administratorToRemove) {
	$this->administrator->detach($administratorToRemove);
}

/**
  * Returns the administrator
  *
  * @return 
Tx_Extbase_Persistence_ObjectStorage<Tx_Extkey_Domain_Model_Administrator> 
$administrator
  */
public function getAdministrator() {
	return $this->administrator;
}
/**
  * Sets the administrator
  *
  * @param 
Tx_Extbase_Persistence_ObjectStorage<Tx_Extkey_Domain_Model_Administrator> 
$administrator
  * @return void
  */
public function setAdministrator(Tx_Extbase_Persistence_ObjectStorage 
$administrator) {
	$this->administrator = $administrator;
}

}


TCA Club:

$TCA['tx_extkey_domain_model_club'] = array(
	'columns' => array(
		'administrator' => array(
			'exclude' => 1,
			'label' => 
'LLL:EXT:extkey/Resources/Private/Language/locallang_db.xml:tx_extkey_domain_model_club.administrator',
			'config' => array(
				'type' => 'select',
				'foreign_table' => 'fe_users',
				'MM' => 'tx_extkey_club_administrator_mm',
				'size' => 10,
				'autoSizeMax' => 30,
				'maxitems' => 9999,
				'multiple' => 0,
				'wizards' => array(
				),
			),
		),
	),
);



Any hints for a beginner like me ;)

raphael