Symfony - Doctrine - Cannot store a blob file in Oracle database - symfony

Question

I want to store uploaded files in Oracle database .
I'm using Doctrine in Symfony 5.
I made an entity "Attachment", with a property "filename" (type string) and "filecontent" (type blob).
The following code is in controller, to get files uploaded, transform file content in stream, and store it in database
$attachments = $form->get('attachments')->getData();
if (count($attachments) > 0) {
foreach ($attachments as $attachment) {
$attach = new Attachment();
$attach->setFilename($attachment->getClientOriginalName());
$strm = fopen($attachment->getRealPath(), 'rb');
$attach->setFilecontent(stream_get_contents($strm));
$em->persist($attach);
}
}
When i submit the form, i have the error :
Warning: PDOStatement::execute(): supplied argument is not a valid stream resource
On a MySQL database, all is allright. File is correctly stored in database, no "stream ressource" issue.
I've found an old workaround here : https://groups.google.com/g/doctrine-user/c/JILLBji__MU but maybe there is a final solution to this problem.
Could you help me ?
Thanks

Answer 1

Oracle and doctrine have not a good compatibility.
So I do it in php and native SQL to do the trick
More information here:
https://www.php.net/manual/en/pdo.lobs.php
In your repository, it's looks like this :
$conn = $this->getEntityManager()->getConnection();
// Get Next Sequence
$sqlSeq = "SELECT DOCUMENT_FILE_id_seq.nextval FROM DUAL";
$stmtSeq = $conn->prepare($sqlSeq);
$stmtSeq->execute();
$nextId = (int)$stmtSeq->fetchFirstColumn()[0];
$fp = fopen($attachment->getRealPath(), 'rb');
// Insert file
$sql = "INSERT INTO DOCUMENT_FILE (id, file_content) VALUES (?,EMPTY_BLOB()) RETURNING file_content INTO ?";
$stmt = $conn->prepare($sql);
$stmt->bindParam(1, $nextId, \PDO::PARAM_INT);
$stmt->bindParam(2, $fp, \PDO::PARAM_LOB);
$conn->beginTransaction();
$stmt->execute();
$conn->commit();
That work for me.