/**
* Handle any upload/deletion requests.
*/
public function handle_form_action()
{
// First, we shall handle the items already attached
$attachments = $this->get_filtered_request_data();
$attached_ids = array_keys($attachments);
// Query the ones we must
$to_query = array_diff($attached_ids, $this->operator->get_all_ids());
if (!empty($to_query)) {
$this->operator->load($to_query, true);
}
$uploader_key = $this->request->header('X-PLUPLOAD_KEY', '');
$uploader_key = $uploader_key ?: $this->request->variable('uploader_key', '');
// Do not perform any actions without a valid key.
if (!check_link_hash($uploader_key, 'uploader_key')) {
return;
}
// Next, delete those requested
$delete_indices = $this->request->variable('delete_file', array(0 => 0));
if ($delete_indices) {
$this->handle_delete($delete_indices);
}
// set requested attachment as preview
$preview = $this->request->variable('set_preview_file' . $this->object_type, 0);
if ($preview) {
$this->operator->set_preview($preview);
}
if ($this->request->is_set($this->form_name, request_interface::FILES)) {
$this->handle_upload();
}
}