private function _get_folder_thumbnails($folders)
{
$thumbnails = array();
foreach ($folders as $i => $folder) {
$thumbnails[$i] = null;
$qb = org_openpsa_slideshow_image_dba::new_query_builder();
$qb->add_constraint('topic', '=', $folder->id);
$qb->add_order('position');
$qb->set_limit(1);
$results = $qb->execute();
if (sizeof($results) == 1) {
$thumbnails[$i] = $results[0];
}
}
return $thumbnails;
}
private function _process_delete()
{
$guids = explode('|', $_POST['guids']);
if (empty($guids)) {
return;
}
$qb = org_openpsa_slideshow_image_dba::new_query_builder();
$qb->add_constraint('topic', '=', $this->_topic->id);
$qb->add_constraint('guid', 'IN', $guids);
$images = $qb->execute();
foreach ($images as $image) {
if (!$image->delete()) {
throw new midcom_error('Failed to delete image: ' . midcom_connection::get_error_string());
}
}
}
