TYPO3 object storage is empty

Question

i wanna ad a relation from one model to a nother.

/**
 * @var \TYPO3\CMS\Extbase\Object\ObjectManagerInterface
 * @inject
 */
protected $objectManager;



/**
 * action create
 *
 * @param \ReRe\Rere\Domain\Model\Modul $newModul
 * @return void
 */
public function createAction(\ReRe\Rere\Domain\Model\Modul $newModul) {
    $this->addFlashMessage('The object was created. Please be aware that this action is publicly accessible unless you implement an access check. See <a href="http://wiki.typo3.org/T3Doc/Extension_Builder/Using_the_Extension_Builder#1._Model_the_domain" target="_blank">Wiki</a>', '', \TYPO3\CMS\Core\Messaging\AbstractMessage::ERROR);
    $this->modulRepository->add($newModul);
    // Erzeugt ein Leeres Fach
    $fachHelper = new \ReRe\Rere\Domain\Model\Fach();


    $fach = $this->objectManager->create('\ReRe\Rere\Domain\Model\Fach');


    // Fach Werte setzen
    $fach->setFachname($this->request->getArgument('fachname'));
    $fach->setFachnr($this->request->getArgument('fachnummer'));
    $fach->setPruefer($this->request->getArgument('pruefer'));
    $fach->setNotenschema($this->request->getArgument('notenschema'));
    // Fach einem Modul zuordnen

    $fach->setModulnr($newModul->getModulnr());
    //$request = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance("\ReRe\Rere\Domain\Model\Fach");
    //\TYPO3\CMS\Extbase\Utility\DebuggerUtility::var_dump($newModul);
    // Fach speichern
    $this->fachRepository->add($fach);

    $newModul->addFach($fach);
    $this->redirect('list');
}

in database in modul the relationcounter will increased ...

DB looks like this:

but if I want to render the view like this:

<f:for each="{moduls}" as="modul">

{modul.modulname}

<f:for each="{modul.fach}" as="fach">
{fach.fachname} 

no fach objects were printed ..

if I do <f:debug> of modul i got this:

Here The TCA-Configs:

Modul:

if (!defined('TYPO3_MODE')) {
   die('Access denied.');
}

$GLOBALS['TCA']['tx_rere_domain_model_modul'] = array(
   'ctrl' => $GLOBALS['TCA']['tx_rere_domain_model_modul']['ctrl'],
   'interface' => array(
       'showRecordFieldList' => 'sys_language_uid, l10n_parent, l10n_diffsource, hidden, modulnr, modulname, gueltigkeitszeitraum, fach',
),
'types' => array(
    '1' => array('showitem' => 'sys_language_uid;;;;1-1-1, l10n_parent, l10n_diffsource,    hidden;;1, modulnr, modulname, gueltigkeitszeitraum, fach, --div--;LLL:EXT:cms/locallang_ttc.xlf:tabs.access, starttime, endtime'),
),
'palettes' => array(
    '1' => array('showitem' => ''),
),
'columns' => array(
    'sys_language_uid' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.language',
        'config' => array(
            'type' => 'select',
            'foreign_table' => 'sys_language',
            'foreign_table_where' => 'ORDER BY sys_language.title',
            'items' => array(
                array('LLL:EXT:lang/locallang_general.xlf:LGL.allLanguages', -1),
                array('LLL:EXT:lang/locallang_general.xlf:LGL.default_value', 0)
            ),
        ),
    ),
    'l10n_parent' => array(
        'displayCond' => 'FIELD:sys_language_uid:>:0',
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.l18n_parent',
        'config' => array(
            'type' => 'select',
            'items' => array(
                array('', 0),
            ),
            'foreign_table' => 'tx_rere_domain_model_modul',
            'foreign_table_where' => 'AND tx_rere_domain_model_modul.pid=###CURRENT_PID### AND tx_rere_domain_model_modul.sys_language_uid IN (-1,0)',
        ),
    ),
    'l10n_diffsource' => array(
        'config' => array(
            'type' => 'passthrough',
        ),
    ),
    't3ver_label' => array(
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.versionLabel',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'max' => 255,
        )
    ),
    'hidden' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.hidden',
        'config' => array(
            'type' => 'check',
        ),
    ),
    'starttime' => array(
        'exclude' => 1,
        'l10n_mode' => 'mergeIfNotBlank',
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.starttime',
        'config' => array(
            'type' => 'input',
            'size' => 13,
            'max' => 20,
            'eval' => 'datetime',
            'checkbox' => 0,
            'default' => 0,
            'range' => array(
                'lower' => mktime(0, 0, 0, date('m'), date('d'), date('Y'))
            ),
        ),
    ),
    'endtime' => array(
        'exclude' => 1,
        'l10n_mode' => 'mergeIfNotBlank',
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.endtime',
        'config' => array(
            'type' => 'input',
            'size' => 13,
            'max' => 20,
            'eval' => 'datetime',
            'checkbox' => 0,
            'default' => 0,
            'range' => array(
                'lower' => mktime(0, 0, 0, date('m'), date('d'), date('Y'))
            ),
        ),
    ),
    'modulnr' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_modul.modulnr',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim'
        ),
    ),
    'modulname' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_modul.modulname',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim,required'
        ),
    ),
    'gueltigkeitszeitraum' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_modul.gueltigkeitszeitraum',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim'
        ),
    ),
    'fach' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_modul.fach',
        'config' => array(
            'type' => 'inline',
            'foreign_table' => 'tx_rere_domain_model_fach',
            'foreign_field' => 'modulnr',
            'maxitems' => 9999,
            'appearance' => array(
                'collapseAll' => 0,
                'levelLinksPosition' => 'top',
                'showSynchronizationLink' => 1,
                'showPossibleLocalizationRecords' => 1,
                'showAllLocalizationLink' => 1
            ),
        ),
    ),
),
);

And TCA Fach

<?php
if (!defined ('TYPO3_MODE')) {
    die ('Access denied.');
}

$GLOBALS['TCA']['tx_rere_domain_model_fach'] = array(
'ctrl' => $GLOBALS['TCA']['tx_rere_domain_model_fach']['ctrl'],
'interface' => array(
    'showRecordFieldList' => 'sys_language_uid, l10n_parent, l10n_diffsource, hidden, fachnr, fachname, pruefer, notenschema, modulnr, matrikelnr',
),
'types' => array(
    '1' => array('showitem' => 'sys_language_uid;;;;1-1-1, l10n_parent, l10n_diffsource, hidden;;1, fachnr, fachname, pruefer, notenschema, modulnr, matrikelnr, --div--;LLL:EXT:cms/locallang_ttc.xlf:tabs.access, starttime, endtime'),
),
'palettes' => array(
    '1' => array('showitem' => ''),
),
'columns' => array(

    'sys_language_uid' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.language',
        'config' => array(
            'type' => 'select',
            'foreign_table' => 'sys_language',
            'foreign_table_where' => 'ORDER BY sys_language.title',
            'items' => array(
                array('LLL:EXT:lang/locallang_general.xlf:LGL.allLanguages', -1),
                array('LLL:EXT:lang/locallang_general.xlf:LGL.default_value', 0)
            ),
        ),
    ),
    'l10n_parent' => array(
        'displayCond' => 'FIELD:sys_language_uid:>:0',
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.l18n_parent',
        'config' => array(
            'type' => 'select',
            'items' => array(
                array('', 0),
            ),
            'foreign_table' => 'tx_rere_domain_model_fach',
            'foreign_table_where' => 'AND tx_rere_domain_model_fach.pid=###CURRENT_PID### AND tx_rere_domain_model_fach.sys_language_uid IN (-1,0)',
        ),
    ),
    'l10n_diffsource' => array(
        'config' => array(
            'type' => 'passthrough',
        ),
    ),

    't3ver_label' => array(
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.versionLabel',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'max' => 255,
        )
    ),

    'hidden' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.hidden',
        'config' => array(
            'type' => 'check',
        ),
    ),
    'starttime' => array(
        'exclude' => 1,
        'l10n_mode' => 'mergeIfNotBlank',
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.starttime',
        'config' => array(
            'type' => 'input',
            'size' => 13,
            'max' => 20,
            'eval' => 'datetime',
            'checkbox' => 0,
            'default' => 0,
            'range' => array(
                'lower' => mktime(0, 0, 0, date('m'), date('d'), date('Y'))
            ),
        ),
    ),
    'endtime' => array(
        'exclude' => 1,
        'l10n_mode' => 'mergeIfNotBlank',
        'label' => 'LLL:EXT:lang/locallang_general.xlf:LGL.endtime',
        'config' => array(
            'type' => 'input',
            'size' => 13,
            'max' => 20,
            'eval' => 'datetime',
            'checkbox' => 0,
            'default' => 0,
            'range' => array(
                'lower' => mktime(0, 0, 0, date('m'), date('d'), date('Y'))
            ),
        ),
    ),

    'fachnr' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.fachnr',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim'
        ),
    ),
    'fachname' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.fachname',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim,required'
        ),
    ),
    'pruefer' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.pruefer',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim'
        ),
    ),
    'notenschema' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.notenschema',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim,required'
        ),
    ),
    'modulnr' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.modulnr',
        'config' => array(
            'type' => 'input',
            'size' => 30,
            'eval' => 'trim,required'
        ),
    ),
    'matrikelnr' => array(
        'exclude' => 1,
        'label' => 'LLL:EXT:rere/Resources/Private/Language/locallang_db.xlf:tx_rere_domain_model_fach.matrikelnr',
        'config' => array(
            'type' => 'select',
            'foreign_table' => 'tx_rere_domain_model_pruefling',
            'MM' => 'tx_rere_fach_pruefling_mm',
            'size' => 10,
            'autoSizeMax' => 30,
            'maxitems' => 9999,
            'multiple' => 0,
            'wizards' => array(
                '_PADDING' => 1,
                '_VERTICAL' => 1,
                'edit' => array(
                    'type' => 'popup',
                    'title' => 'Edit',
                    'script' => 'wizard_edit.php',
                    'icon' => 'edit2.gif',
                    'popup_onlyOpenIfSelected' => 1,
                    'JSopenParams' => 'height=350,width=580,status=0,menubar=0,scrollbars=1',
                    ),
                'add' => Array(
                    'type' => 'script',
                    'title' => 'Create new',
                    'icon' => 'add.gif',
                    'params' => array(
                        'table' => 'tx_rere_domain_model_pruefling',
                        'pid' => '###CURRENT_PID###',
                        'setValue' => 'prepend'
                        ),
                    'script' => 'wizard_add.php',
                ),
            ),
        ),
    ),

    'modul' => array(
        'config' => array(
            'type' => 'passthrough',
        ),
    ),
    'note' => array(
        'config' => array(
            'type' => 'passthrough',
        ),
    ),
),
);

Answer 1

The model class looks ok and all annotations seem to be correct.

Could you please post your TCA configuration for both Modul and Fach (the relation entry for both should be enough).

Quick question, are you able to see the relations between the two objects in the backend and if so, can you see it from both sides? Go to the BE and check with the list tool if you can see related "Fach" objects in a "Modul" object and vise versa.

Maybe the TCA relation is no set up correctly and you can only access the relation from one side.

From which side have you created the relations (Modul->Fach or Fach->Modul)? Of course it should be working either way.

UPDATE 1

Does the column "modulnr" in your table "tx_rere_domain_model_fach" contain the correct Modul-UIDs?

-> To speed the process up, could you send me a download link to your extension? I would then install it on a test system and we will quickly find out what is wrong.

UPDATE 2

I found what is going wrong in your extension. After creating a new Modul and Fach the class \ReRe\Rere\Controller\ModulController handles the form data. In line 116

$fach->setModulnr($newModul->getModulnr());

the value for the reference, which should be the UID of the Modul is set to the Modulnr. As the reference to the foreign table is configured to be the UID, the UID of the Modul needs to be set here. Change the line to the following and it works:

$fach->setModulnr($newModul->getUid());

You will have to change this in every controller action that creates a new Fach-Modul relation. So this is only an example of what you need to do.

Sidenote

As an additional tip, you might want to take a look into the best practises on how to handle form data in Extbase.

Calls like this

$fach->setFachnr($this->request->getArgument('fachnummer'));

will work but open up a world of pain when it comes to injections, as there is no validation etc.

A very easy and quick way to set up basic validation and also make your code much more readable is to use annotations and parameters in your controller action. So instead of getting the arguments yourself, let the framework to the work for you:

/**
 * action create
 *
 * @param \ReRe\Rere\Domain\Model\Modul $newModul
 * @param string                        $fachname
 * @param int                           $fachnummer
 */
public function createAction(\ReRe\Rere\Domain\Model\Modul $newModul, $fachname, $fachnummer) {
...

If you want to make a parameter optional, just give it a value in the method call:

public function createAction(\ReRe\Rere\Domain\Model\Modul $newModul, $fachname = "foo", $fachnummer="bar") {
...

As I said, this is just a tip, you might want to consider :)

Answer 2

Please check if the ObjectStorage is related to the correct class in your model. Sometimes the extensionbuilder does set up the ObjectStorage but messes up the annotation.

Check if the annotation for "fach" in your ReRe\Rere\Domain\Model\Modul class contains the referenced class. It should look like this:

@var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\ReRe\Rere\Domain\Model\Fach>

If assume your looks just like this, which is wrong and leads to an empty ObjectStorage in the FE: @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<>

See how the class the ObjectStorage contains is missing.