default:
$aa=$a->getExtraFieldDataText();
$ba=$b->getExtraFieldDataText();
- $af=$aa[$this->criterion]['value'];
- $bf=$ba[$this->criterion]['value'];
+ if(!isset($this->criterion) || empty($this->criterion)) {
+ $criterion = 1;
+ }
+ else {
+ $criterion = $this->criterion;
+ }
+ $af=$aa[$criterion]['value'];
+ $bf=$ba[$criterion]['value'];
$namecmp = strcoll ($af,$bf) ;
if ($namecmp != 0) {
return $namecmp ;