/**
* Is this filename valid (contains a unique participant ID) for import?
*
* @param sepl $seplment - The seplment instance
* @param stored_file $fileinfo - The fileinfo
* @param array $participants - A list of valid participants for this module indexed by unique_id
* @param stdClass $user - Set to the user that matches by participant id
* @param sepl_plugin $plugin - Set to the plugin that exported the file
* @param string $filename - Set to truncated filename (prefix stripped)
* @return true If the participant Id can be extracted and this is a valid user
*/
public function is_valid_filename_for_import($seplment, $fileinfo, $participants, &$user, &$plugin, &$filename)
{
if ($fileinfo->is_directory()) {
return false;
}
// Ignore hidden files.
if (strpos($fileinfo->get_filename(), '.') === 0) {
return false;
}
// Ignore hidden files.
if (strpos($fileinfo->get_filename(), '~') === 0) {
return false;
}
$info = explode('_', $fileinfo->get_filename(), 5);
if (count($info) < 5) {
return false;
}
$participantid = $info[1];
$filename = $info[4];
$plugin = $seplment->get_plugin_by_type($info[2], $info[3]);
if (!is_numeric($participantid)) {
return false;
}
if (!$plugin) {
return false;
}
// Convert to int.
$participantid += 0;
if (empty($participants[$participantid])) {
return false;
}
$user = $participants[$participantid];
return true;
}
