embedForm saving problem - Symfony - symfony1

Question

I have schema like:
Schema:
article:
id: ~
title: { type: VARCHAR, size: '255', required: true }
created_at: { type: TIMESTAMP, required: true }
updated_at: { type: TIMESTAMP, required: true }
article_data:
id: ~
article_data: { type: BLOB, required: true }
article_filename: { type: VARCHAR, size: '255'}
article_id: { type: INTEGER, required: true, foreignTable: article, foreignReference: id, onDelete: cascade }
So, in my article admin module, I'd like to display the article_data widget, which is a file upload.
Everything is fine. But when saving the uploaded file to the server, the article_id field is null.
Is there a way i could get the id of the article and save it as the article_id of the article_data table?
Thanks
EDIT:
I think I need to override the saveEmbeddedForm() method, but I am not sure what I'd need to do.
Could someone help with some code for a saveEmbeddedForm()?
Thanks

Answer 1

I don't known Propel, but in Doctrine you could do something like this:
class ArticleForm extends BaseForm
{
public function configure()
{
parent::configure();
$form = new sfForm();
$datas = $this->getObject()->getDatas();
foreach ($datas as $index => $data)
$form->embedForm($index, new ArticleDataForm($data));
$this->embedForm('dataForms', $form);
}
public function saveEmbeddedForm($con = null, $forms = null)
{
$dataForms = $this->getEmbeddedForm('dataForms')->getEmbeddedForms();
foreach ($dataForms as $dataForm)
$dataForm->getObject()->setArticle($this->getObject());
parent::saveEmbeddedForm($con, $forms);
}
}