SilverStripe 4 - Save uploaded file as Member extension property - php

Question

I'm trying to save an uploaded file via AJAX request to a page controller, as a Member extension property.
I got a Member DataExtension that implements a File property with a many_many relation, like this:
My Member Extension
[...]
/**
* Classe Utente - Estensione
*/
class UtenteExtension extends DataExtension
{
// Dichiarazione Proprietà
private static $many_many = [
'AllegatiUpload' => File::class, // this field should save users file uploads
[...]
];
private static $owns = [
'AllegatiUpload',
[...]
];
[...]
The Controller involved:
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\HTTPResponse;
use SilverStripe\ErrorPage;
use SilverStripe\Assets\Folder;
use SilverStripe\Assets\File;
use SilverStripe\Assets\Upload;
use SilverStripe\Security;
use SilverStripe\Security\Group;
use SilverStripe\Assets\Storage\AssetStore;
/**
* Classe Controller Utente - Dashboard
*/
class UtenteDashboardController extends PageController
{
// Dichiarazione Proprietà
private static $allowed_actions = [
'carica'
];
/**
* Funzione gestione validazione ed invio form caricamento
* #param HTTPRequest $request Richiesta HTTP
* #return HTTPResponse Risposta HTTP
*/
public function carica(SS_HTTPRequest $request) {
if (!$request->isAjax()) {
return ErrorPage::response_for(404);
} else if (!$request->isPOST()) {
return $this->httpError(400, 'Metodo POST richiesto');
} else {
$documento = $request->postVar('documento'); // File data sent by FormData JS API
if (!isset($documento)) {
return $this->httpError(500, 'Dati richiesti mancanti');
} else {
// User check
$utente = Security::getCurrentUser();
if ($utente->inGroup(Group::get()->filter('Code', 'clienti')->first()->ID)) {
// File uploading
$cartellaUpload = 'clienti/'. strtolower($utente->Surname) .'/uploads';
Folder::find_or_make($cartellaUpload);
// I tried with the official guide approach, with this line - with no results
//$utente->AllegatiUpload()->setFromLocalFile($cartellaUpload, documento, AssetStore::CONFLICT_OVERWRITE);
// Then I tried with this approach
$file = File::create();
$upload = Upload::create();
$upload->loadIntoFile($documento, $file, $cartellaUpload);
// Upload check
if ($upload->isError()) {
return $this->httpError(400, 'Errore di caricamento file');
} else {
// Relate the file to the destinaion user field
$utente->{'AllegatiUpload.ID'} = $upload->getFile()->ID;
// Update user
$utente->write();
return new HTTPResponse;
}
} else {
return $this->httpError(401, 'Utente non abilitato');
}
}
}
}
}
I'm stuck in the process in order to pair the file with the correct Member. I think I missing the correct syntax, because I'm working with a many_many relation and this one doesn't fit it:
// Relate the file to the destinaion user field
utente->{'AllegatiUpload.ID'} = $upload->getFile()->ID;
I tried too with an approach like this:
$allegato = $utente->AllegatiUpload();
$allegato->setField('Documento', $upload->getFile()->ID);
$allegato->write();
But I receive this exception:
[Emergency] Uncaught BadMethodCallException: Object->__call(): the method 'write' does not exist on 'SilverStripe\ORM\ManyManyList'
Maybe I must convert AllegatiUpload to a DataObject first, then adding a File property inside it in order to avoid this?

Answer 1

You add new items to relations with the $object->RelationName()->add($item) syntax, in your case:
$utente->AllegatiUpload()->add($file);
reference https://docs.silverstripe.org/en/4/developer_guides/model/relations/#adding-relations