/**
* Function returns items to export.
* Items that has no content (<b>QTI items</b> without <i>qti.xml</i> file or empty <b>Open Web Items</b>) will be filtered
* @return core_kernel_classes_Resource[] An array of items.
*/
protected function getResourcesToExport()
{
$resources = parent::getResourcesToExport();
$service = taoItems_models_classes_ItemsService::singleton();
$resources = array_filter($resources, function ($val) use($service) {
return $service->hasItemContent($val);
});
return $resources;
}
