public function get_sort_columns() {
// Add attemptid as a final tie-break to the sort. This ensures that
// Attempts by the same student appear in order when just sorting by name.
$sortcolumns = parent::get_sort_columns();
$sortcolumns['quiza.id'] = SORT_ASC;
return $sortcolumns;
}
/**
* Always return a valid sort - even if the userid column is missing.
* @return array column name => SORT_... constant.
*/
public function get_sort_columns()
{
$result = parent::get_sort_columns();
$result = array_merge($result, array('userid' => SORT_ASC));
return $result;
}
/**
* Always return a valid sort - even if the userid column is missing.
* @return array column name => SORT_... constant.
*/
public function get_sort_columns()
{
$result = parent::get_sort_columns();
$assignment = $this->assignment->get_instance();
if (empty($assignment->blindmarking)) {
$result = array_merge($result, array('userid' => SORT_ASC));
} else {
$result = array_merge($result, ['COALESCE(s.timecreated, ' . time() . ')' => SORT_ASC, 'COALESCE(s.id, ' . PHP_INT_MAX . ')' => SORT_ASC, 'um.id' => SORT_ASC]);
}
return $result;
}
